./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a --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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- 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-b5237d8 [2022-11-21 17:28:00,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:28:00,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:28:00,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:28:00,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:28:00,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:28:00,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:28:00,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:28:00,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:28:00,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:28:00,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:28:00,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:28:00,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:28:00,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:28:00,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:28:00,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:28:00,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:28:00,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:28:00,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:28:00,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:28:00,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:28:00,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:28:00,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:28:00,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:28:00,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:28:00,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:28:00,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:28:00,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:28:00,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:28:00,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:28:00,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:28:00,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:28:00,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:28:00,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:28:00,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:28:00,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:28:00,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:28:00,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:28:00,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:28:00,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:28:00,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:28:00,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 17:28:01,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:28:01,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:28:01,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:28:01,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:28:01,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:28:01,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:28:01,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:28:01,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:28:01,016 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:28:01,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:28:01,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:28:01,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:28:01,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:28:01,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:28:01,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:28:01,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:28:01,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:28:01,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:28:01,019 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 17:28:01,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:28:01,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:28:01,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:28:01,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:28:01,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:28:01,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:28:01,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:28:01,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:01,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:28:01,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:28:01,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:28:01,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:28:01,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:28:01,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:28:01,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:28:01,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:28:01,040 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_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2022-11-21 17:28:01,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:28:01,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:28:01,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:28:01,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:28:01,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:28:01,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-21 17:28:04,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:28:04,674 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:28:04,675 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-21 17:28:04,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/data/284474afa/8c68983455044bf491802af82fd4ae39/FLAGb14a6eec4 [2022-11-21 17:28:04,720 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/data/284474afa/8c68983455044bf491802af82fd4ae39 [2022-11-21 17:28:04,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:28:04,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:28:04,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:04,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:28:04,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:28:04,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:04" (1/1) ... [2022-11-21 17:28:04,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740f584e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:04, skipping insertion in model container [2022-11-21 17:28:04,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:04" (1/1) ... [2022-11-21 17:28:04,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:28:04,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:28:05,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:05,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:28:05,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:05,484 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:28:05,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05 WrapperNode [2022-11-21 17:28:05,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:05,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:05,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:28:05,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:28:05,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,562 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-11-21 17:28:05,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:05,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:28:05,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:28:05,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:28:05,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:28:05,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:28:05,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:28:05,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:28:05,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (1/1) ... [2022-11-21 17:28:05,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:05,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:28:05,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:28:05,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:28:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:28:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:28:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:28:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:28:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 17:28:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:28:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:28:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:28:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:28:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:28:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:28:05,688 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:28:05,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:28:05,825 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:28:06,138 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:28:06,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:28:06,146 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:28:06,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:06 BoogieIcfgContainer [2022-11-21 17:28:06,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:28:06,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:28:06,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:28:06,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:28:06,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:28:04" (1/3) ... [2022-11-21 17:28:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cbcc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:06, skipping insertion in model container [2022-11-21 17:28:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:05" (2/3) ... [2022-11-21 17:28:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cbcc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:06, skipping insertion in model container [2022-11-21 17:28:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:06" (3/3) ... [2022-11-21 17:28:06,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-11-21 17:28:06,174 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:28:06,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:28:06,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 17:28:06,183 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:28:06,270 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 17:28:06,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 242 flow [2022-11-21 17:28:06,393 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2022-11-21 17:28:06,393 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:06,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 0/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-21 17:28:06,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 117 transitions, 242 flow [2022-11-21 17:28:06,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 108 transitions, 219 flow [2022-11-21 17:28:06,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:28:06,418 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;@fa2a579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:28:06,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 17:28:06,429 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-21 17:28:06,430 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:28:06,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:06,431 INFO L209 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] [2022-11-21 17:28:06,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1875861720, now seen corresponding path program 1 times [2022-11-21 17:28:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:06,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871069992] [2022-11-21 17:28:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:06,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:06,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:06,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871069992] [2022-11-21 17:28:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871069992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:06,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:06,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:28:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102339748] [2022-11-21 17:28:06,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:06,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:28:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:06,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:28:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:28:06,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 117 [2022-11-21 17:28:06,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:06,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:06,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 117 [2022-11-21 17:28:06,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:06,949 INFO L130 PetriNetUnfolder]: 36/329 cut-off events. [2022-11-21 17:28:06,949 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:06,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 329 events. 36/329 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1293 event pairs, 36 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 374. Up to 89 conditions per place. [2022-11-21 17:28:06,955 INFO L137 encePairwiseOnDemand]: 114/117 looper letters, 16 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-21 17:28:06,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 253 flow [2022-11-21 17:28:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:28:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:28:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2022-11-21 17:28:06,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8831908831908832 [2022-11-21 17:28:06,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2022-11-21 17:28:06,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2022-11-21 17:28:06,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:06,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2022-11-21 17:28:06,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,002 INFO L175 Difference]: Start difference. First operand has 112 places, 108 transitions, 219 flow. Second operand 3 states and 310 transitions. [2022-11-21 17:28:07,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 107 transitions, 253 flow [2022-11-21 17:28:07,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:28:07,015 INFO L231 Difference]: Finished difference. Result has 112 places, 107 transitions, 220 flow [2022-11-21 17:28:07,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=112, PETRI_TRANSITIONS=107} [2022-11-21 17:28:07,023 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 0 predicate places. [2022-11-21 17:28:07,024 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 220 flow [2022-11-21 17:28:07,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:07,025 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:07,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:28:07,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 82953373, now seen corresponding path program 1 times [2022-11-21 17:28:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:07,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113728925] [2022-11-21 17:28:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:07,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:07,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113728925] [2022-11-21 17:28:07,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113728925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:07,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:07,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:28:07,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614380484] [2022-11-21 17:28:07,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:07,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:28:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:28:07,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:28:07,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2022-11-21 17:28:07,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:07,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2022-11-21 17:28:07,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:07,299 INFO L130 PetriNetUnfolder]: 16/231 cut-off events. [2022-11-21 17:28:07,302 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:07,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 231 events. 16/231 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 647 event pairs, 12 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 239. Up to 40 conditions per place. [2022-11-21 17:28:07,308 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 11 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-21 17:28:07,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 105 transitions, 242 flow [2022-11-21 17:28:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:28:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:28:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-21 17:28:07,313 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2022-11-21 17:28:07,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-21 17:28:07,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-21 17:28:07,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:07,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-21 17:28:07,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,319 INFO L175 Difference]: Start difference. First operand has 112 places, 107 transitions, 220 flow. Second operand 3 states and 317 transitions. [2022-11-21 17:28:07,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 105 transitions, 242 flow [2022-11-21 17:28:07,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:28:07,324 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 222 flow [2022-11-21 17:28:07,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2022-11-21 17:28:07,326 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, -3 predicate places. [2022-11-21 17:28:07,326 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 222 flow [2022-11-21 17:28:07,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:07,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:07,327 INFO L209 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] [2022-11-21 17:28:07,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:28:07,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 487984091, now seen corresponding path program 1 times [2022-11-21 17:28:07,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:07,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361133414] [2022-11-21 17:28:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:07,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:07,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:07,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361133414] [2022-11-21 17:28:07,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361133414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:07,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:07,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:28:07,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776399035] [2022-11-21 17:28:07,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:07,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:07,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:07,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:07,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:08,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 117 [2022-11-21 17:28:08,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:08,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 117 [2022-11-21 17:28:08,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:08,471 INFO L130 PetriNetUnfolder]: 283/882 cut-off events. [2022-11-21 17:28:08,471 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:28:08,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 882 events. 283/882 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4752 event pairs, 171 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1465. Up to 475 conditions per place. [2022-11-21 17:28:08,483 INFO L137 encePairwiseOnDemand]: 106/117 looper letters, 72 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-21 17:28:08,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 163 transitions, 526 flow [2022-11-21 17:28:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:28:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:28:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2022-11-21 17:28:08,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8190883190883191 [2022-11-21 17:28:08,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2022-11-21 17:28:08,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2022-11-21 17:28:08,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:08,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2022-11-21 17:28:08,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,493 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 222 flow. Second operand 6 states and 575 transitions. [2022-11-21 17:28:08,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 163 transitions, 526 flow [2022-11-21 17:28:08,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 163 transitions, 526 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:08,499 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 372 flow [2022-11-21 17:28:08,500 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2022-11-21 17:28:08,501 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2022-11-21 17:28:08,501 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 372 flow [2022-11-21 17:28:08,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:08,502 INFO L209 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] [2022-11-21 17:28:08,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:28:08,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:08,504 INFO L85 PathProgramCache]: Analyzing trace with hash 435955792, now seen corresponding path program 1 times [2022-11-21 17:28:08,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:08,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829938833] [2022-11-21 17:28:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:08,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:08,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:08,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829938833] [2022-11-21 17:28:08,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829938833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:08,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:08,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:28:08,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863458863] [2022-11-21 17:28:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:08,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:08,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:08,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:08,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2022-11-21 17:28:08,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:08,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2022-11-21 17:28:08,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:09,352 INFO L130 PetriNetUnfolder]: 346/1050 cut-off events. [2022-11-21 17:28:09,352 INFO L131 PetriNetUnfolder]: For 270/276 co-relation queries the response was YES. [2022-11-21 17:28:09,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1050 events. 346/1050 cut-off events. For 270/276 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6051 event pairs, 126 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 2098. Up to 545 conditions per place. [2022-11-21 17:28:09,359 INFO L137 encePairwiseOnDemand]: 106/117 looper letters, 103 selfloop transitions, 26 changer transitions 0/200 dead transitions. [2022-11-21 17:28:09,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 200 transitions, 868 flow [2022-11-21 17:28:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:28:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:28:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 601 transitions. [2022-11-21 17:28:09,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8561253561253561 [2022-11-21 17:28:09,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 601 transitions. [2022-11-21 17:28:09,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 601 transitions. [2022-11-21 17:28:09,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:09,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 601 transitions. [2022-11-21 17:28:09,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,372 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 372 flow. Second operand 6 states and 601 transitions. [2022-11-21 17:28:09,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 200 transitions, 868 flow [2022-11-21 17:28:09,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 200 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:09,383 INFO L231 Difference]: Finished difference. Result has 129 places, 147 transitions, 556 flow [2022-11-21 17:28:09,384 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=556, PETRI_PLACES=129, PETRI_TRANSITIONS=147} [2022-11-21 17:28:09,386 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 17 predicate places. [2022-11-21 17:28:09,387 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 147 transitions, 556 flow [2022-11-21 17:28:09,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:09,389 INFO L209 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] [2022-11-21 17:28:09,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:28:09,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:09,393 INFO L85 PathProgramCache]: Analyzing trace with hash -897875409, now seen corresponding path program 1 times [2022-11-21 17:28:09,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:09,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512680640] [2022-11-21 17:28:09,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:09,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:09,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:09,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512680640] [2022-11-21 17:28:09,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512680640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:09,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:09,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:28:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071170562] [2022-11-21 17:28:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:09,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:09,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 117 [2022-11-21 17:28:09,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 147 transitions, 556 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:09,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 117 [2022-11-21 17:28:09,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:10,331 INFO L130 PetriNetUnfolder]: 423/1238 cut-off events. [2022-11-21 17:28:10,331 INFO L131 PetriNetUnfolder]: For 771/783 co-relation queries the response was YES. [2022-11-21 17:28:10,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3056 conditions, 1238 events. 423/1238 cut-off events. For 771/783 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7495 event pairs, 169 based on Foata normal form. 4/1156 useless extension candidates. Maximal degree in co-relation 2998. Up to 790 conditions per place. [2022-11-21 17:28:10,364 INFO L137 encePairwiseOnDemand]: 102/117 looper letters, 96 selfloop transitions, 53 changer transitions 0/215 dead transitions. [2022-11-21 17:28:10,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 215 transitions, 1150 flow [2022-11-21 17:28:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:28:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:28:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2022-11-21 17:28:10,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2022-11-21 17:28:10,368 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2022-11-21 17:28:10,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2022-11-21 17:28:10,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:10,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2022-11-21 17:28:10,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,373 INFO L175 Difference]: Start difference. First operand has 129 places, 147 transitions, 556 flow. Second operand 6 states and 559 transitions. [2022-11-21 17:28:10,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 215 transitions, 1150 flow [2022-11-21 17:28:10,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 215 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:10,385 INFO L231 Difference]: Finished difference. Result has 139 places, 194 transitions, 1038 flow [2022-11-21 17:28:10,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=139, PETRI_TRANSITIONS=194} [2022-11-21 17:28:10,388 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-21 17:28:10,388 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 194 transitions, 1038 flow [2022-11-21 17:28:10,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:10,389 INFO L209 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] [2022-11-21 17:28:10,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:28:10,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1665288748, now seen corresponding path program 1 times [2022-11-21 17:28:10,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7266756] [2022-11-21 17:28:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:10,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:10,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7266756] [2022-11-21 17:28:10,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7266756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:10,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:28:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963217857] [2022-11-21 17:28:10,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:10,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:10,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:10,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:10,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 117 [2022-11-21 17:28:10,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 194 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:10,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 117 [2022-11-21 17:28:10,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:11,256 INFO L130 PetriNetUnfolder]: 580/1534 cut-off events. [2022-11-21 17:28:11,256 INFO L131 PetriNetUnfolder]: For 1795/1807 co-relation queries the response was YES. [2022-11-21 17:28:11,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4608 conditions, 1534 events. 580/1534 cut-off events. For 1795/1807 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9268 event pairs, 179 based on Foata normal form. 0/1460 useless extension candidates. Maximal degree in co-relation 4548. Up to 1019 conditions per place. [2022-11-21 17:28:11,269 INFO L137 encePairwiseOnDemand]: 98/117 looper letters, 132 selfloop transitions, 83 changer transitions 4/289 dead transitions. [2022-11-21 17:28:11,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 289 transitions, 1942 flow [2022-11-21 17:28:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:28:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:28:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-11-21 17:28:11,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-11-21 17:28:11,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-11-21 17:28:11,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-11-21 17:28:11,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:11,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-11-21 17:28:11,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,276 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,276 INFO L175 Difference]: Start difference. First operand has 139 places, 194 transitions, 1038 flow. Second operand 6 states and 594 transitions. [2022-11-21 17:28:11,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 289 transitions, 1942 flow [2022-11-21 17:28:11,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 289 transitions, 1878 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:11,300 INFO L231 Difference]: Finished difference. Result has 149 places, 263 transitions, 1730 flow [2022-11-21 17:28:11,301 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1730, PETRI_PLACES=149, PETRI_TRANSITIONS=263} [2022-11-21 17:28:11,304 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 37 predicate places. [2022-11-21 17:28:11,304 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 263 transitions, 1730 flow [2022-11-21 17:28:11,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:11,306 INFO L209 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] [2022-11-21 17:28:11,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:28:11,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:11,307 INFO L85 PathProgramCache]: Analyzing trace with hash -773646105, now seen corresponding path program 1 times [2022-11-21 17:28:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:11,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763718808] [2022-11-21 17:28:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:11,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:11,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763718808] [2022-11-21 17:28:11,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763718808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:11,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:11,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:28:11,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171072237] [2022-11-21 17:28:11,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:11,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:28:11,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:28:11,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:28:11,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 117 [2022-11-21 17:28:11,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 263 transitions, 1730 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:11,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 117 [2022-11-21 17:28:11,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:11,493 INFO L130 PetriNetUnfolder]: 46/325 cut-off events. [2022-11-21 17:28:11,494 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-11-21 17:28:11,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 325 events. 46/325 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1062 event pairs, 8 based on Foata normal form. 2/314 useless extension candidates. Maximal degree in co-relation 756. Up to 62 conditions per place. [2022-11-21 17:28:11,497 INFO L137 encePairwiseOnDemand]: 113/117 looper letters, 7 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2022-11-21 17:28:11,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 125 transitions, 518 flow [2022-11-21 17:28:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:28:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:28:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2022-11-21 17:28:11,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9515669515669516 [2022-11-21 17:28:11,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2022-11-21 17:28:11,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2022-11-21 17:28:11,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:11,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2022-11-21 17:28:11,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,502 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,502 INFO L175 Difference]: Start difference. First operand has 149 places, 263 transitions, 1730 flow. Second operand 3 states and 334 transitions. [2022-11-21 17:28:11,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 125 transitions, 518 flow [2022-11-21 17:28:11,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 125 transitions, 392 flow, removed 33 selfloop flow, removed 30 redundant places. [2022-11-21 17:28:11,509 INFO L231 Difference]: Finished difference. Result has 118 places, 123 transitions, 374 flow [2022-11-21 17:28:11,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=118, PETRI_TRANSITIONS=123} [2022-11-21 17:28:11,510 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 6 predicate places. [2022-11-21 17:28:11,510 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 123 transitions, 374 flow [2022-11-21 17:28:11,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:11,511 INFO L209 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] [2022-11-21 17:28:11,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:28:11,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:11,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:11,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1086986125, now seen corresponding path program 1 times [2022-11-21 17:28:11,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:11,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063185160] [2022-11-21 17:28:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:11,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:11,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:11,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063185160] [2022-11-21 17:28:11,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063185160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:11,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:11,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:28:11,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089690862] [2022-11-21 17:28:11,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:11,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:11,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:11,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 117 [2022-11-21 17:28:11,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:11,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 117 [2022-11-21 17:28:11,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:12,108 INFO L130 PetriNetUnfolder]: 120/469 cut-off events. [2022-11-21 17:28:12,108 INFO L131 PetriNetUnfolder]: For 127/128 co-relation queries the response was YES. [2022-11-21 17:28:12,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 469 events. 120/469 cut-off events. For 127/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1786 event pairs, 17 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 1067. Up to 197 conditions per place. [2022-11-21 17:28:12,111 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 71 selfloop transitions, 25 changer transitions 11/178 dead transitions. [2022-11-21 17:28:12,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 178 transitions, 794 flow [2022-11-21 17:28:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:28:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:28:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2022-11-21 17:28:12,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7905982905982906 [2022-11-21 17:28:12,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2022-11-21 17:28:12,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2022-11-21 17:28:12,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:12,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2022-11-21 17:28:12,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,118 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,118 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 374 flow. Second operand 6 states and 555 transitions. [2022-11-21 17:28:12,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 178 transitions, 794 flow [2022-11-21 17:28:12,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 178 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:28:12,123 INFO L231 Difference]: Finished difference. Result has 127 places, 143 transitions, 586 flow [2022-11-21 17:28:12,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=586, PETRI_PLACES=127, PETRI_TRANSITIONS=143} [2022-11-21 17:28:12,126 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 15 predicate places. [2022-11-21 17:28:12,126 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 143 transitions, 586 flow [2022-11-21 17:28:12,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:12,127 INFO L209 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] [2022-11-21 17:28:12,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:28:12,127 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash -676676881, now seen corresponding path program 1 times [2022-11-21 17:28:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:12,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767759801] [2022-11-21 17:28:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767759801] [2022-11-21 17:28:12,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767759801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:12,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:12,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62890603] [2022-11-21 17:28:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:12,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:12,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:12,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:12,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 117 [2022-11-21 17:28:12,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 143 transitions, 586 flow. Second operand has 11 states, 11 states have (on average 72.18181818181819) internal successors, (794), 11 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:12,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 117 [2022-11-21 17:28:12,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:13,283 INFO L130 PetriNetUnfolder]: 149/597 cut-off events. [2022-11-21 17:28:13,283 INFO L131 PetriNetUnfolder]: For 488/488 co-relation queries the response was YES. [2022-11-21 17:28:13,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 597 events. 149/597 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2526 event pairs, 2 based on Foata normal form. 11/608 useless extension candidates. Maximal degree in co-relation 1573. Up to 204 conditions per place. [2022-11-21 17:28:13,288 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 94 selfloop transitions, 29 changer transitions 16/199 dead transitions. [2022-11-21 17:28:13,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 199 transitions, 1148 flow [2022-11-21 17:28:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 778 transitions. [2022-11-21 17:28:13,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6649572649572649 [2022-11-21 17:28:13,292 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 778 transitions. [2022-11-21 17:28:13,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 778 transitions. [2022-11-21 17:28:13,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:13,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 778 transitions. [2022-11-21 17:28:13,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.8) internal successors, (778), 10 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,299 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,299 INFO L175 Difference]: Start difference. First operand has 127 places, 143 transitions, 586 flow. Second operand 10 states and 778 transitions. [2022-11-21 17:28:13,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 199 transitions, 1148 flow [2022-11-21 17:28:13,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 199 transitions, 1130 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:13,308 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 602 flow [2022-11-21 17:28:13,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=602, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-11-21 17:28:13,309 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 23 predicate places. [2022-11-21 17:28:13,310 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 602 flow [2022-11-21 17:28:13,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.18181818181819) internal successors, (794), 11 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:13,311 INFO L209 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] [2022-11-21 17:28:13,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:28:13,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1227373298, now seen corresponding path program 1 times [2022-11-21 17:28:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:13,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409481781] [2022-11-21 17:28:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:14,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:14,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409481781] [2022-11-21 17:28:14,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409481781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:14,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:14,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496150186] [2022-11-21 17:28:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:14,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:14,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-21 17:28:14,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 602 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:14,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-21 17:28:14,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:14,716 INFO L130 PetriNetUnfolder]: 109/456 cut-off events. [2022-11-21 17:28:14,716 INFO L131 PetriNetUnfolder]: For 344/345 co-relation queries the response was YES. [2022-11-21 17:28:14,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 456 events. 109/456 cut-off events. For 344/345 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1658 event pairs, 30 based on Foata normal form. 5/459 useless extension candidates. Maximal degree in co-relation 1287. Up to 211 conditions per place. [2022-11-21 17:28:14,720 INFO L137 encePairwiseOnDemand]: 104/117 looper letters, 81 selfloop transitions, 26 changer transitions 13/183 dead transitions. [2022-11-21 17:28:14,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 183 transitions, 974 flow [2022-11-21 17:28:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 812 transitions. [2022-11-21 17:28:14,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.694017094017094 [2022-11-21 17:28:14,723 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 812 transitions. [2022-11-21 17:28:14,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 812 transitions. [2022-11-21 17:28:14,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:14,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 812 transitions. [2022-11-21 17:28:14,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.2) internal successors, (812), 10 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,729 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,729 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 602 flow. Second operand 10 states and 812 transitions. [2022-11-21 17:28:14,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 183 transitions, 974 flow [2022-11-21 17:28:14,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 183 transitions, 861 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-21 17:28:14,739 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 567 flow [2022-11-21 17:28:14,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=567, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-11-21 17:28:14,741 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 23 predicate places. [2022-11-21 17:28:14,741 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 567 flow [2022-11-21 17:28:14,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:14,742 INFO L209 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] [2022-11-21 17:28:14,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:28:14,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:14,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1352266620, now seen corresponding path program 2 times [2022-11-21 17:28:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:14,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408734833] [2022-11-21 17:28:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:15,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:15,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408734833] [2022-11-21 17:28:15,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408734833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:15,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:15,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:15,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408859116] [2022-11-21 17:28:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:15,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:15,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-21 17:28:15,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 567 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:15,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:15,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-21 17:28:15,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:15,824 INFO L130 PetriNetUnfolder]: 157/631 cut-off events. [2022-11-21 17:28:15,824 INFO L131 PetriNetUnfolder]: For 522/522 co-relation queries the response was YES. [2022-11-21 17:28:15,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1800 conditions, 631 events. 157/631 cut-off events. For 522/522 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2793 event pairs, 11 based on Foata normal form. 10/640 useless extension candidates. Maximal degree in co-relation 1732. Up to 232 conditions per place. [2022-11-21 17:28:15,828 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 58 selfloop transitions, 4 changer transitions 114/237 dead transitions. [2022-11-21 17:28:15,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 237 transitions, 1393 flow [2022-11-21 17:28:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 817 transitions. [2022-11-21 17:28:15,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6982905982905983 [2022-11-21 17:28:15,832 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 817 transitions. [2022-11-21 17:28:15,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 817 transitions. [2022-11-21 17:28:15,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:15,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 817 transitions. [2022-11-21 17:28:15,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.7) internal successors, (817), 10 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:15,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:15,837 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:15,838 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 567 flow. Second operand 10 states and 817 transitions. [2022-11-21 17:28:15,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 237 transitions, 1393 flow [2022-11-21 17:28:15,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 237 transitions, 1317 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-21 17:28:15,846 INFO L231 Difference]: Finished difference. Result has 139 places, 121 transitions, 455 flow [2022-11-21 17:28:15,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=455, PETRI_PLACES=139, PETRI_TRANSITIONS=121} [2022-11-21 17:28:15,847 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-21 17:28:15,848 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 121 transitions, 455 flow [2022-11-21 17:28:15,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:15,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:15,849 INFO L209 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] [2022-11-21 17:28:15,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:28:15,849 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash -999397056, now seen corresponding path program 3 times [2022-11-21 17:28:15,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:15,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664768931] [2022-11-21 17:28:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:16,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664768931] [2022-11-21 17:28:16,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664768931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:16,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:16,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:16,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960174737] [2022-11-21 17:28:16,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:16,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:16,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-21 17:28:16,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 121 transitions, 455 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:16,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:16,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-21 17:28:16,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:17,138 INFO L130 PetriNetUnfolder]: 91/385 cut-off events. [2022-11-21 17:28:17,139 INFO L131 PetriNetUnfolder]: For 469/469 co-relation queries the response was YES. [2022-11-21 17:28:17,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 385 events. 91/385 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1273 event pairs, 24 based on Foata normal form. 10/393 useless extension candidates. Maximal degree in co-relation 1026. Up to 149 conditions per place. [2022-11-21 17:28:17,142 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 71 selfloop transitions, 11 changer transitions 43/186 dead transitions. [2022-11-21 17:28:17,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 186 transitions, 958 flow [2022-11-21 17:28:17,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:28:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:28:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 882 transitions. [2022-11-21 17:28:17,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6853146853146853 [2022-11-21 17:28:17,146 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 882 transitions. [2022-11-21 17:28:17,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 882 transitions. [2022-11-21 17:28:17,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:17,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 882 transitions. [2022-11-21 17:28:17,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.18181818181819) internal successors, (882), 11 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:17,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:17,153 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:17,153 INFO L175 Difference]: Start difference. First operand has 139 places, 121 transitions, 455 flow. Second operand 11 states and 882 transitions. [2022-11-21 17:28:17,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 186 transitions, 958 flow [2022-11-21 17:28:17,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 186 transitions, 876 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-21 17:28:17,161 INFO L231 Difference]: Finished difference. Result has 138 places, 121 transitions, 435 flow [2022-11-21 17:28:17,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=435, PETRI_PLACES=138, PETRI_TRANSITIONS=121} [2022-11-21 17:28:17,163 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 26 predicate places. [2022-11-21 17:28:17,163 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 121 transitions, 435 flow [2022-11-21 17:28:17,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:17,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:17,164 INFO L209 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] [2022-11-21 17:28:17,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:28:17,164 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash 874075448, now seen corresponding path program 4 times [2022-11-21 17:28:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:17,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661923820] [2022-11-21 17:28:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:17,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661923820] [2022-11-21 17:28:17,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661923820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:17,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:17,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:17,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866711464] [2022-11-21 17:28:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:17,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:17,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:17,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-21 17:28:17,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 121 transitions, 435 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:17,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:17,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-21 17:28:17,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:18,221 INFO L130 PetriNetUnfolder]: 108/430 cut-off events. [2022-11-21 17:28:18,221 INFO L131 PetriNetUnfolder]: For 583/583 co-relation queries the response was YES. [2022-11-21 17:28:18,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 430 events. 108/430 cut-off events. For 583/583 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1495 event pairs, 38 based on Foata normal form. 10/436 useless extension candidates. Maximal degree in co-relation 1180. Up to 109 conditions per place. [2022-11-21 17:28:18,224 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 49 selfloop transitions, 5 changer transitions 77/192 dead transitions. [2022-11-21 17:28:18,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 192 transitions, 1047 flow [2022-11-21 17:28:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 798 transitions. [2022-11-21 17:28:18,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6820512820512821 [2022-11-21 17:28:18,227 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 798 transitions. [2022-11-21 17:28:18,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 798 transitions. [2022-11-21 17:28:18,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:18,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 798 transitions. [2022-11-21 17:28:18,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.8) internal successors, (798), 10 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:18,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:18,233 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:18,233 INFO L175 Difference]: Start difference. First operand has 138 places, 121 transitions, 435 flow. Second operand 10 states and 798 transitions. [2022-11-21 17:28:18,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 192 transitions, 1047 flow [2022-11-21 17:28:18,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 192 transitions, 987 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-11-21 17:28:18,240 INFO L231 Difference]: Finished difference. Result has 139 places, 115 transitions, 402 flow [2022-11-21 17:28:18,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=402, PETRI_PLACES=139, PETRI_TRANSITIONS=115} [2022-11-21 17:28:18,241 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-21 17:28:18,242 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 115 transitions, 402 flow [2022-11-21 17:28:18,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:18,242 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:18,242 INFO L209 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] [2022-11-21 17:28:18,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:28:18,243 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-21 17:28:18,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:18,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1437740598, now seen corresponding path program 5 times [2022-11-21 17:28:18,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:18,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274110238] [2022-11-21 17:28:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:18,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:18,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:18,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274110238] [2022-11-21 17:28:18,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274110238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:18,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:18,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:28:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840437892] [2022-11-21 17:28:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:18,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:28:18,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:18,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:28:18,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:28:18,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-21 17:28:18,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 115 transitions, 402 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:18,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:18,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-21 17:28:18,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:19,160 INFO L130 PetriNetUnfolder]: 31/193 cut-off events. [2022-11-21 17:28:19,161 INFO L131 PetriNetUnfolder]: For 279/281 co-relation queries the response was YES. [2022-11-21 17:28:19,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 193 events. 31/193 cut-off events. For 279/281 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 297 event pairs, 0 based on Foata normal form. 12/205 useless extension candidates. Maximal degree in co-relation 503. Up to 35 conditions per place. [2022-11-21 17:28:19,162 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2022-11-21 17:28:19,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 150 transitions, 720 flow [2022-11-21 17:28:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 782 transitions. [2022-11-21 17:28:19,165 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6683760683760683 [2022-11-21 17:28:19,165 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 782 transitions. [2022-11-21 17:28:19,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 782 transitions. [2022-11-21 17:28:19,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:19,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 782 transitions. [2022-11-21 17:28:19,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.2) internal successors, (782), 10 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:19,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:19,173 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:19,173 INFO L175 Difference]: Start difference. First operand has 139 places, 115 transitions, 402 flow. Second operand 10 states and 782 transitions. [2022-11-21 17:28:19,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 150 transitions, 720 flow [2022-11-21 17:28:19,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 150 transitions, 649 flow, removed 25 selfloop flow, removed 12 redundant places. [2022-11-21 17:28:19,177 INFO L231 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2022-11-21 17:28:19,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2022-11-21 17:28:19,178 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 20 predicate places. [2022-11-21 17:28:19,178 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2022-11-21 17:28:19,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:19,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-21 17:28:19,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-21 17:28:19,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-21 17:28:19,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-21 17:28:19,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-21 17:28:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-21 17:28:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 17:28:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-21 17:28:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-21 17:28:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-21 17:28:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-21 17:28:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-21 17:28:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-21 17:28:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-21 17:28:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-21 17:28:19,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:28:19,185 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:19,190 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:28:19,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:28:19,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:28:19 BasicIcfg [2022-11-21 17:28:19,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:28:19,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:28:19,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:28:19,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:28:19,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:06" (3/4) ... [2022-11-21 17:28:19,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:28:19,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 17:28:19,214 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 17:28:19,215 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:28:19,215 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:28:19,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:28:19,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:28:19,258 INFO L158 Benchmark]: Toolchain (without parser) took 14530.19ms. Allocated memory was 138.4MB in the beginning and 362.8MB in the end (delta: 224.4MB). Free memory was 74.8MB in the beginning and 289.9MB in the end (delta: -215.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,258 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:28:19,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.42ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 74.6MB in the beginning and 149.6MB in the end (delta: -75.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.10ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 147.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,259 INFO L158 Benchmark]: Boogie Preprocessor took 43.87ms. Allocated memory is still 203.4MB. Free memory was 147.5MB in the beginning and 145.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,259 INFO L158 Benchmark]: RCFGBuilder took 541.16ms. Allocated memory is still 203.4MB. Free memory was 145.4MB in the beginning and 128.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,260 INFO L158 Benchmark]: TraceAbstraction took 13046.70ms. Allocated memory was 203.4MB in the beginning and 362.8MB in the end (delta: 159.4MB). Free memory was 127.9MB in the beginning and 292.0MB in the end (delta: -164.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:28:19,260 INFO L158 Benchmark]: Witness Printer took 58.77ms. Allocated memory is still 362.8MB. Free memory was 292.0MB in the beginning and 289.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:28:19,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.42ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 74.6MB in the beginning and 149.6MB in the end (delta: -75.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.10ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 147.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.87ms. Allocated memory is still 203.4MB. Free memory was 147.5MB in the beginning and 145.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.16ms. Allocated memory is still 203.4MB. Free memory was 145.4MB in the beginning and 128.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13046.70ms. Allocated memory was 203.4MB in the beginning and 362.8MB in the end (delta: 159.4MB). Free memory was 127.9MB in the beginning and 292.0MB in the end (delta: -164.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.77ms. Allocated memory is still 362.8MB. Free memory was 292.0MB in the beginning and 289.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 937]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 937]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 939]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 926]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 926]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 152 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 847 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 847 mSDsluCounter, 330 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2965 IncrementalHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 240 mSDtfsCounter, 2965 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1730occurred in iteration=6, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 962 NumberOfCodeBlocks, 962 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 948 ConstructedInterpolants, 0 QuantifiedInterpolants, 4975 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 17:28:19,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f80c70-3c73-414d-b692-ba3f8c982503/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE