./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN --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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- 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-6b4ec56 [2022-11-20 11:58:48,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:58:48,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:58:48,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:58:48,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:58:48,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:58:48,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:58:48,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:58:48,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:58:48,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:58:48,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:58:48,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:58:48,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:58:48,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:58:48,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:58:48,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:58:48,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:58:48,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:58:48,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:58:48,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:58:48,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:58:48,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:58:48,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:58:48,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:58:48,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:58:48,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:58:48,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:58:48,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:58:48,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:58:48,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:58:48,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:58:48,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:58:48,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:58:48,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:58:48,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:58:48,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:58:48,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:58:48,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:58:48,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:58:48,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:58:48,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:58:48,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:58:49,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:58:49,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:58:49,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:58:49,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:58:49,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:58:49,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:58:49,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:58:49,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:58:49,022 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:58:49,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:58:49,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:58:49,023 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:58:49,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:58:49,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:58:49,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:58:49,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:58:49,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:58:49,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:58:49,041 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:58:49,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:58:49,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:58:49,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:58:49,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:58:49,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:58:49,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:58:49,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:58:49,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:49,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:58:49,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:58:49,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:58:49,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:58:49,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:58:49,046 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:58:49,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:58:49,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:58:49,047 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_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2022-11-20 11:58:49,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:58:49,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:58:49,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:58:49,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:58:49,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:58:49,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-20 11:58:52,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:58:53,308 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:58:53,311 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-20 11:58:53,331 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/data/e8f5a7e00/07d744a687ad44478ef17c96c683fd1c/FLAGa48595716 [2022-11-20 11:58:53,354 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/data/e8f5a7e00/07d744a687ad44478ef17c96c683fd1c [2022-11-20 11:58:53,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:58:53,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:58:53,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:53,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:58:53,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:58:53,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:53" (1/1) ... [2022-11-20 11:58:53,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243c9915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:53, skipping insertion in model container [2022-11-20 11:58:53,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:53" (1/1) ... [2022-11-20 11:58:53,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:58:53,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:58:54,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:58:54,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:58:54,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:58:54,249 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:58:54,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54 WrapperNode [2022-11-20 11:58:54,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:54,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:58:54,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:58:54,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:58:54,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,345 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-20 11:58:54,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:58:54,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:58:54,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:58:54,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:58:54,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:58:54,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:58:54,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:58:54,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:58:54,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (1/1) ... [2022-11-20 11:58:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:54,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:58:54,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:58:54,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:58:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:58:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:58:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:58:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:58:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:58:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:58:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:58:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:58:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:58:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:58:54,498 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:58:54,751 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:58:54,754 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:58:55,150 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:58:55,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:58:55,201 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:58:55,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:55 BoogieIcfgContainer [2022-11-20 11:58:55,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:58:55,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:58:55,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:58:55,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:58:55,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:58:53" (1/3) ... [2022-11-20 11:58:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23605c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:55, skipping insertion in model container [2022-11-20 11:58:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:54" (2/3) ... [2022-11-20 11:58:55,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23605c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:55, skipping insertion in model container [2022-11-20 11:58:55,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:55" (3/3) ... [2022-11-20 11:58:55,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2022-11-20 11:58:55,267 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:58:55,281 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:58:55,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:58:55,281 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:58:55,394 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:58:55,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 173 flow [2022-11-20 11:58:55,538 INFO L130 PetriNetUnfolder]: 1/83 cut-off events. [2022-11-20 11:58:55,538 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:58:55,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 1/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-20 11:58:55,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 84 transitions, 173 flow [2022-11-20 11:58:55,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 83 transitions, 169 flow [2022-11-20 11:58:55,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:58:55,571 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;@2ca3c68a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:58:55,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 11:58:55,597 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2022-11-20 11:58:55,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:58:55,598 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:58:55,599 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] [2022-11-20 11:58:55,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:58:55,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1076326687, now seen corresponding path program 1 times [2022-11-20 11:58:55,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:58:55,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819340361] [2022-11-20 11:58:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:55,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:58:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:56,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:58:56,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819340361] [2022-11-20 11:58:56,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819340361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:56,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:56,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:58:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504085825] [2022-11-20 11:58:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:56,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:58:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:56,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:58:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:58:56,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 84 [2022-11-20 11:58:56,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:56,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:58:56,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 84 [2022-11-20 11:58:56,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:58:57,234 INFO L130 PetriNetUnfolder]: 91/363 cut-off events. [2022-11-20 11:58:57,235 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:58:57,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 363 events. 91/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1525 event pairs, 32 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 522. Up to 162 conditions per place. [2022-11-20 11:58:57,241 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 30 selfloop transitions, 22 changer transitions 4/112 dead transitions. [2022-11-20 11:58:57,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 112 transitions, 339 flow [2022-11-20 11:58:57,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:58:57,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:58:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2022-11-20 11:58:57,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-20 11:58:57,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 399 transitions. [2022-11-20 11:58:57,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 399 transitions. [2022-11-20 11:58:57,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:58:57,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 399 transitions. [2022-11-20 11:58:57,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:57,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:57,290 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:57,293 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 169 flow. Second operand 6 states and 399 transitions. [2022-11-20 11:58:57,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 112 transitions, 339 flow [2022-11-20 11:58:57,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 112 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:58:57,301 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 318 flow [2022-11-20 11:58:57,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=95, PETRI_TRANSITIONS=104} [2022-11-20 11:58:57,309 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2022-11-20 11:58:57,309 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 318 flow [2022-11-20 11:58:57,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:57,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:58:57,310 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] [2022-11-20 11:58:57,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:58:57,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:58:57,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1327139528, now seen corresponding path program 1 times [2022-11-20 11:58:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:58:57,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880296751] [2022-11-20 11:58:57,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:57,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:58:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:57,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:58:57,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880296751] [2022-11-20 11:58:57,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880296751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:57,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:57,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:58:57,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062190855] [2022-11-20 11:58:57,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:57,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:58:57,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:57,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:58:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:58:57,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 84 [2022-11-20 11:58:57,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:57,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:58:57,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 84 [2022-11-20 11:58:57,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:58:58,047 INFO L130 PetriNetUnfolder]: 124/434 cut-off events. [2022-11-20 11:58:58,047 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-20 11:58:58,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 434 events. 124/434 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1974 event pairs, 27 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 967. Up to 203 conditions per place. [2022-11-20 11:58:58,053 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 37 selfloop transitions, 26 changer transitions 11/140 dead transitions. [2022-11-20 11:58:58,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 140 transitions, 634 flow [2022-11-20 11:58:58,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:58:58,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:58:58,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2022-11-20 11:58:58,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-11-20 11:58:58,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2022-11-20 11:58:58,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2022-11-20 11:58:58,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:58:58,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2022-11-20 11:58:58,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:58,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:58,064 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:58,064 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 318 flow. Second operand 6 states and 444 transitions. [2022-11-20 11:58:58,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 140 transitions, 634 flow [2022-11-20 11:58:58,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 140 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:58:58,073 INFO L231 Difference]: Finished difference. Result has 105 places, 125 transitions, 542 flow [2022-11-20 11:58:58,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=105, PETRI_TRANSITIONS=125} [2022-11-20 11:58:58,074 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 19 predicate places. [2022-11-20 11:58:58,075 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 125 transitions, 542 flow [2022-11-20 11:58:58,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:58,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:58:58,076 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] [2022-11-20 11:58:58,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:58:58,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:58:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1992373555, now seen corresponding path program 1 times [2022-11-20 11:58:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:58:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395697630] [2022-11-20 11:58:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:58:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:58:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395697630] [2022-11-20 11:58:58,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395697630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:58,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:58,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:58:58,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647787446] [2022-11-20 11:58:58,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:58,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:58:58,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:58,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:58:58,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:58:58,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 84 [2022-11-20 11:58:58,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 125 transitions, 542 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:58,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:58:58,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 84 [2022-11-20 11:58:58,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:58:59,064 INFO L130 PetriNetUnfolder]: 97/505 cut-off events. [2022-11-20 11:58:59,065 INFO L131 PetriNetUnfolder]: For 349/370 co-relation queries the response was YES. [2022-11-20 11:58:59,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 505 events. 97/505 cut-off events. For 349/370 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2733 event pairs, 7 based on Foata normal form. 14/515 useless extension candidates. Maximal degree in co-relation 1039. Up to 107 conditions per place. [2022-11-20 11:58:59,074 INFO L137 encePairwiseOnDemand]: 77/84 looper letters, 48 selfloop transitions, 4 changer transitions 24/152 dead transitions. [2022-11-20 11:58:59,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 152 transitions, 818 flow [2022-11-20 11:58:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:58:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:58:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 445 transitions. [2022-11-20 11:58:59,077 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7568027210884354 [2022-11-20 11:58:59,078 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 445 transitions. [2022-11-20 11:58:59,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 445 transitions. [2022-11-20 11:58:59,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:58:59,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 445 transitions. [2022-11-20 11:58:59,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.57142857142857) internal successors, (445), 7 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:59,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:59,085 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:59,085 INFO L175 Difference]: Start difference. First operand has 105 places, 125 transitions, 542 flow. Second operand 7 states and 445 transitions. [2022-11-20 11:58:59,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 152 transitions, 818 flow [2022-11-20 11:58:59,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 152 transitions, 800 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:58:59,107 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 534 flow [2022-11-20 11:58:59,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=534, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2022-11-20 11:58:59,111 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 28 predicate places. [2022-11-20 11:58:59,112 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 534 flow [2022-11-20 11:58:59,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:59,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:58:59,113 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] [2022-11-20 11:58:59,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:58:59,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:58:59,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1561990480, now seen corresponding path program 1 times [2022-11-20 11:58:59,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:58:59,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959528403] [2022-11-20 11:58:59,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:59,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:58:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:59,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:58:59,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959528403] [2022-11-20 11:58:59,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959528403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:59,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:59,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:58:59,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448981156] [2022-11-20 11:58:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:59,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:58:59,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:58:59,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:58:59,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:58:59,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 534 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:59,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:58:59,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:58:59,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:00,931 INFO L130 PetriNetUnfolder]: 181/598 cut-off events. [2022-11-20 11:59:00,931 INFO L131 PetriNetUnfolder]: For 377/382 co-relation queries the response was YES. [2022-11-20 11:59:00,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 598 events. 181/598 cut-off events. For 377/382 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3029 event pairs, 49 based on Foata normal form. 7/603 useless extension candidates. Maximal degree in co-relation 1697. Up to 269 conditions per place. [2022-11-20 11:59:00,938 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 74 selfloop transitions, 30 changer transitions 20/162 dead transitions. [2022-11-20 11:59:00,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 162 transitions, 932 flow [2022-11-20 11:59:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 570 transitions. [2022-11-20 11:59:00,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2022-11-20 11:59:00,942 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 570 transitions. [2022-11-20 11:59:00,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 570 transitions. [2022-11-20 11:59:00,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:00,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 570 transitions. [2022-11-20 11:59:00,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.5) internal successors, (570), 12 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:00,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:00,949 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:00,950 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 534 flow. Second operand 12 states and 570 transitions. [2022-11-20 11:59:00,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 162 transitions, 932 flow [2022-11-20 11:59:00,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 162 transitions, 921 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-20 11:59:00,962 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 598 flow [2022-11-20 11:59:00,962 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=598, PETRI_PLACES=119, PETRI_TRANSITIONS=123} [2022-11-20 11:59:00,963 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 33 predicate places. [2022-11-20 11:59:00,963 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 123 transitions, 598 flow [2022-11-20 11:59:00,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:00,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:00,965 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] [2022-11-20 11:59:00,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:59:00,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1037099328, now seen corresponding path program 2 times [2022-11-20 11:59:00,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:00,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168345708] [2022-11-20 11:59:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:00,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:01,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:01,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168345708] [2022-11-20 11:59:01,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168345708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:01,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:01,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:01,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717206950] [2022-11-20 11:59:01,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:01,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:01,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:01,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:01,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 123 transitions, 598 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:01,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:01,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:01,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:02,469 INFO L130 PetriNetUnfolder]: 207/646 cut-off events. [2022-11-20 11:59:02,470 INFO L131 PetriNetUnfolder]: For 759/759 co-relation queries the response was YES. [2022-11-20 11:59:02,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 646 events. 207/646 cut-off events. For 759/759 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3294 event pairs, 8 based on Foata normal form. 11/655 useless extension candidates. Maximal degree in co-relation 2064. Up to 208 conditions per place. [2022-11-20 11:59:02,475 INFO L137 encePairwiseOnDemand]: 71/84 looper letters, 121 selfloop transitions, 32 changer transitions 17/208 dead transitions. [2022-11-20 11:59:02,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 208 transitions, 1487 flow [2022-11-20 11:59:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:59:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 11:59:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 645 transitions. [2022-11-20 11:59:02,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.548469387755102 [2022-11-20 11:59:02,479 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 645 transitions. [2022-11-20 11:59:02,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 645 transitions. [2022-11-20 11:59:02,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:02,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 645 transitions. [2022-11-20 11:59:02,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.07142857142857) internal successors, (645), 14 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:02,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:02,487 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:02,487 INFO L175 Difference]: Start difference. First operand has 119 places, 123 transitions, 598 flow. Second operand 14 states and 645 transitions. [2022-11-20 11:59:02,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 208 transitions, 1487 flow [2022-11-20 11:59:02,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 208 transitions, 1416 flow, removed 4 selfloop flow, removed 10 redundant places. [2022-11-20 11:59:02,505 INFO L231 Difference]: Finished difference. Result has 127 places, 143 transitions, 863 flow [2022-11-20 11:59:02,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=863, PETRI_PLACES=127, PETRI_TRANSITIONS=143} [2022-11-20 11:59:02,508 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 41 predicate places. [2022-11-20 11:59:02,509 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 143 transitions, 863 flow [2022-11-20 11:59:02,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:02,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:02,510 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] [2022-11-20 11:59:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:59:02,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:02,515 INFO L85 PathProgramCache]: Analyzing trace with hash 729348682, now seen corresponding path program 3 times [2022-11-20 11:59:02,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:02,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023661804] [2022-11-20 11:59:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:03,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:03,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023661804] [2022-11-20 11:59:03,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023661804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:03,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:03,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:03,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016093318] [2022-11-20 11:59:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:03,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:03,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:03,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:03,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 143 transitions, 863 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:03,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:03,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:03,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:04,308 INFO L130 PetriNetUnfolder]: 205/676 cut-off events. [2022-11-20 11:59:04,308 INFO L131 PetriNetUnfolder]: For 1423/1425 co-relation queries the response was YES. [2022-11-20 11:59:04,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 676 events. 205/676 cut-off events. For 1423/1425 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3639 event pairs, 45 based on Foata normal form. 7/681 useless extension candidates. Maximal degree in co-relation 2414. Up to 316 conditions per place. [2022-11-20 11:59:04,315 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 92 selfloop transitions, 39 changer transitions 15/184 dead transitions. [2022-11-20 11:59:04,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 184 transitions, 1383 flow [2022-11-20 11:59:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:04,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 613 transitions. [2022-11-20 11:59:04,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5613553113553114 [2022-11-20 11:59:04,320 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 613 transitions. [2022-11-20 11:59:04,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 613 transitions. [2022-11-20 11:59:04,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:04,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 613 transitions. [2022-11-20 11:59:04,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.15384615384615) internal successors, (613), 13 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:04,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:04,331 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:04,331 INFO L175 Difference]: Start difference. First operand has 127 places, 143 transitions, 863 flow. Second operand 13 states and 613 transitions. [2022-11-20 11:59:04,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 184 transitions, 1383 flow [2022-11-20 11:59:04,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 184 transitions, 1349 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-20 11:59:04,373 INFO L231 Difference]: Finished difference. Result has 133 places, 147 transitions, 978 flow [2022-11-20 11:59:04,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=978, PETRI_PLACES=133, PETRI_TRANSITIONS=147} [2022-11-20 11:59:04,375 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 47 predicate places. [2022-11-20 11:59:04,375 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 147 transitions, 978 flow [2022-11-20 11:59:04,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:04,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:04,376 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] [2022-11-20 11:59:04,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:59:04,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:04,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1785874460, now seen corresponding path program 4 times [2022-11-20 11:59:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945439168] [2022-11-20 11:59:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:04,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:04,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945439168] [2022-11-20 11:59:04,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945439168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:04,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:04,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936263558] [2022-11-20 11:59:04,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:04,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:04,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:04,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:04,962 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:04,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 147 transitions, 978 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:04,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:04,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:04,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:05,984 INFO L130 PetriNetUnfolder]: 297/936 cut-off events. [2022-11-20 11:59:05,984 INFO L131 PetriNetUnfolder]: For 2756/2756 co-relation queries the response was YES. [2022-11-20 11:59:05,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 936 events. 297/936 cut-off events. For 2756/2756 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5624 event pairs, 33 based on Foata normal form. 11/945 useless extension candidates. Maximal degree in co-relation 3615. Up to 358 conditions per place. [2022-11-20 11:59:05,996 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 151 selfloop transitions, 54 changer transitions 16/259 dead transitions. [2022-11-20 11:59:05,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 259 transitions, 2352 flow [2022-11-20 11:59:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 617 transitions. [2022-11-20 11:59:06,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.565018315018315 [2022-11-20 11:59:06,000 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 617 transitions. [2022-11-20 11:59:06,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 617 transitions. [2022-11-20 11:59:06,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:06,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 617 transitions. [2022-11-20 11:59:06,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.46153846153846) internal successors, (617), 13 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:06,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:06,008 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:06,008 INFO L175 Difference]: Start difference. First operand has 133 places, 147 transitions, 978 flow. Second operand 13 states and 617 transitions. [2022-11-20 11:59:06,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 259 transitions, 2352 flow [2022-11-20 11:59:06,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 259 transitions, 2200 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-11-20 11:59:06,040 INFO L231 Difference]: Finished difference. Result has 141 places, 178 transitions, 1453 flow [2022-11-20 11:59:06,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1453, PETRI_PLACES=141, PETRI_TRANSITIONS=178} [2022-11-20 11:59:06,041 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-20 11:59:06,041 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 178 transitions, 1453 flow [2022-11-20 11:59:06,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:06,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:06,042 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] [2022-11-20 11:59:06,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:59:06,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:06,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash -207178100, now seen corresponding path program 5 times [2022-11-20 11:59:06,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:06,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324178877] [2022-11-20 11:59:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:06,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:06,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324178877] [2022-11-20 11:59:06,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324178877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:06,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:06,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:06,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382427963] [2022-11-20 11:59:06,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:06,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:06,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:06,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:06,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:06,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 178 transitions, 1453 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:06,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:06,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:06,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:07,682 INFO L130 PetriNetUnfolder]: 351/1112 cut-off events. [2022-11-20 11:59:07,682 INFO L131 PetriNetUnfolder]: For 4467/4469 co-relation queries the response was YES. [2022-11-20 11:59:07,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4729 conditions, 1112 events. 351/1112 cut-off events. For 4467/4469 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7168 event pairs, 62 based on Foata normal form. 13/1123 useless extension candidates. Maximal degree in co-relation 4628. Up to 457 conditions per place. [2022-11-20 11:59:07,697 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 146 selfloop transitions, 62 changer transitions 15/261 dead transitions. [2022-11-20 11:59:07,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 261 transitions, 2588 flow [2022-11-20 11:59:07,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 615 transitions. [2022-11-20 11:59:07,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5631868131868132 [2022-11-20 11:59:07,701 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 615 transitions. [2022-11-20 11:59:07,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 615 transitions. [2022-11-20 11:59:07,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:07,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 615 transitions. [2022-11-20 11:59:07,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.30769230769231) internal successors, (615), 13 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:07,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:07,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:07,708 INFO L175 Difference]: Start difference. First operand has 141 places, 178 transitions, 1453 flow. Second operand 13 states and 615 transitions. [2022-11-20 11:59:07,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 261 transitions, 2588 flow [2022-11-20 11:59:07,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 261 transitions, 2523 flow, removed 24 selfloop flow, removed 6 redundant places. [2022-11-20 11:59:07,764 INFO L231 Difference]: Finished difference. Result has 153 places, 200 transitions, 1889 flow [2022-11-20 11:59:07,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1889, PETRI_PLACES=153, PETRI_TRANSITIONS=200} [2022-11-20 11:59:07,768 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 67 predicate places. [2022-11-20 11:59:07,769 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 200 transitions, 1889 flow [2022-11-20 11:59:07,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:07,770 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:07,770 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] [2022-11-20 11:59:07,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:59:07,770 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash -181248448, now seen corresponding path program 6 times [2022-11-20 11:59:07,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:07,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724752245] [2022-11-20 11:59:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:07,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:08,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:08,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724752245] [2022-11-20 11:59:08,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724752245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:08,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:08,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580252869] [2022-11-20 11:59:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:08,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:08,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:08,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:08,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:08,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:08,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 200 transitions, 1889 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:08,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:08,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:08,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:09,369 INFO L130 PetriNetUnfolder]: 350/1117 cut-off events. [2022-11-20 11:59:09,370 INFO L131 PetriNetUnfolder]: For 6063/6063 co-relation queries the response was YES. [2022-11-20 11:59:09,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5168 conditions, 1117 events. 350/1117 cut-off events. For 6063/6063 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7206 event pairs, 44 based on Foata normal form. 5/1120 useless extension candidates. Maximal degree in co-relation 5062. Up to 599 conditions per place. [2022-11-20 11:59:09,385 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 129 selfloop transitions, 58 changer transitions 16/241 dead transitions. [2022-11-20 11:59:09,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 241 transitions, 2633 flow [2022-11-20 11:59:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 569 transitions. [2022-11-20 11:59:09,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.564484126984127 [2022-11-20 11:59:09,390 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 569 transitions. [2022-11-20 11:59:09,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 569 transitions. [2022-11-20 11:59:09,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:09,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 569 transitions. [2022-11-20 11:59:09,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.416666666666664) internal successors, (569), 12 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:09,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:09,400 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:09,401 INFO L175 Difference]: Start difference. First operand has 153 places, 200 transitions, 1889 flow. Second operand 12 states and 569 transitions. [2022-11-20 11:59:09,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 241 transitions, 2633 flow [2022-11-20 11:59:09,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 241 transitions, 2502 flow, removed 25 selfloop flow, removed 6 redundant places. [2022-11-20 11:59:09,467 INFO L231 Difference]: Finished difference. Result has 163 places, 207 transitions, 2070 flow [2022-11-20 11:59:09,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2070, PETRI_PLACES=163, PETRI_TRANSITIONS=207} [2022-11-20 11:59:09,469 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 77 predicate places. [2022-11-20 11:59:09,469 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 207 transitions, 2070 flow [2022-11-20 11:59:09,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:09,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:09,472 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] [2022-11-20 11:59:09,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:59:09,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:09,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:09,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1957212360, now seen corresponding path program 7 times [2022-11-20 11:59:09,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:09,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974864574] [2022-11-20 11:59:09,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:10,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974864574] [2022-11-20 11:59:10,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974864574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:10,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:10,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976004708] [2022-11-20 11:59:10,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:10,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:10,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:10,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:10,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:10,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:10,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 207 transitions, 2070 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:10,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:10,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:10,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:11,049 INFO L130 PetriNetUnfolder]: 384/1226 cut-off events. [2022-11-20 11:59:11,049 INFO L131 PetriNetUnfolder]: For 8628/8628 co-relation queries the response was YES. [2022-11-20 11:59:11,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5898 conditions, 1226 events. 384/1226 cut-off events. For 8628/8628 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8181 event pairs, 66 based on Foata normal form. 11/1235 useless extension candidates. Maximal degree in co-relation 5786. Up to 385 conditions per place. [2022-11-20 11:59:11,066 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 174 selfloop transitions, 70 changer transitions 15/297 dead transitions. [2022-11-20 11:59:11,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 297 transitions, 3442 flow [2022-11-20 11:59:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 615 transitions. [2022-11-20 11:59:11,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5631868131868132 [2022-11-20 11:59:11,071 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 615 transitions. [2022-11-20 11:59:11,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 615 transitions. [2022-11-20 11:59:11,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:11,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 615 transitions. [2022-11-20 11:59:11,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.30769230769231) internal successors, (615), 13 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:11,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:11,079 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:11,079 INFO L175 Difference]: Start difference. First operand has 163 places, 207 transitions, 2070 flow. Second operand 13 states and 615 transitions. [2022-11-20 11:59:11,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 297 transitions, 3442 flow [2022-11-20 11:59:11,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 297 transitions, 3422 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-11-20 11:59:11,151 INFO L231 Difference]: Finished difference. Result has 175 places, 226 transitions, 2604 flow [2022-11-20 11:59:11,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2604, PETRI_PLACES=175, PETRI_TRANSITIONS=226} [2022-11-20 11:59:11,153 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 89 predicate places. [2022-11-20 11:59:11,153 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 226 transitions, 2604 flow [2022-11-20 11:59:11,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:11,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:11,154 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] [2022-11-20 11:59:11,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:59:11,157 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1470847946, now seen corresponding path program 1 times [2022-11-20 11:59:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622252846] [2022-11-20 11:59:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:11,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:11,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622252846] [2022-11-20 11:59:11,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622252846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:11,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:11,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:11,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306370823] [2022-11-20 11:59:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:11,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:11,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:11,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:11,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:11,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 226 transitions, 2604 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:11,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:11,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:11,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:12,613 INFO L130 PetriNetUnfolder]: 368/1180 cut-off events. [2022-11-20 11:59:12,613 INFO L131 PetriNetUnfolder]: For 10609/10609 co-relation queries the response was YES. [2022-11-20 11:59:12,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6073 conditions, 1180 events. 368/1180 cut-off events. For 10609/10609 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7750 event pairs, 42 based on Foata normal form. 33/1211 useless extension candidates. Maximal degree in co-relation 5955. Up to 245 conditions per place. [2022-11-20 11:59:12,627 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 61 selfloop transitions, 29 changer transitions 208/332 dead transitions. [2022-11-20 11:59:12,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 332 transitions, 4727 flow [2022-11-20 11:59:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 560 transitions. [2022-11-20 11:59:12,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-11-20 11:59:12,632 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 560 transitions. [2022-11-20 11:59:12,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 560 transitions. [2022-11-20 11:59:12,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:12,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 560 transitions. [2022-11-20 11:59:12,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.666666666666664) internal successors, (560), 12 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:12,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:12,638 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:12,639 INFO L175 Difference]: Start difference. First operand has 175 places, 226 transitions, 2604 flow. Second operand 12 states and 560 transitions. [2022-11-20 11:59:12,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 332 transitions, 4727 flow [2022-11-20 11:59:12,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 332 transitions, 4580 flow, removed 70 selfloop flow, removed 4 redundant places. [2022-11-20 11:59:12,744 INFO L231 Difference]: Finished difference. Result has 181 places, 109 transitions, 838 flow [2022-11-20 11:59:12,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=2501, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=838, PETRI_PLACES=181, PETRI_TRANSITIONS=109} [2022-11-20 11:59:12,745 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 95 predicate places. [2022-11-20 11:59:12,745 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 109 transitions, 838 flow [2022-11-20 11:59:12,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:12,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:12,746 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] [2022-11-20 11:59:12,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:59:12,747 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:12,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:12,749 INFO L85 PathProgramCache]: Analyzing trace with hash -934181958, now seen corresponding path program 8 times [2022-11-20 11:59:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:12,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412653107] [2022-11-20 11:59:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:13,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412653107] [2022-11-20 11:59:13,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412653107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:13,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:13,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:13,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150056716] [2022-11-20 11:59:13,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:13,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:13,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:13,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:13,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:13,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 109 transitions, 838 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:13,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:13,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:13,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:13,917 INFO L130 PetriNetUnfolder]: 98/453 cut-off events. [2022-11-20 11:59:13,918 INFO L131 PetriNetUnfolder]: For 3322/3336 co-relation queries the response was YES. [2022-11-20 11:59:13,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 453 events. 98/453 cut-off events. For 3322/3336 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2173 event pairs, 25 based on Foata normal form. 16/467 useless extension candidates. Maximal degree in co-relation 2064. Up to 219 conditions per place. [2022-11-20 11:59:13,924 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 68 selfloop transitions, 15 changer transitions 28/147 dead transitions. [2022-11-20 11:59:13,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 147 transitions, 1406 flow [2022-11-20 11:59:13,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 585 transitions. [2022-11-20 11:59:13,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-11-20 11:59:13,928 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 585 transitions. [2022-11-20 11:59:13,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 585 transitions. [2022-11-20 11:59:13,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:13,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 585 transitions. [2022-11-20 11:59:13,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:13,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:13,937 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:13,937 INFO L175 Difference]: Start difference. First operand has 181 places, 109 transitions, 838 flow. Second operand 13 states and 585 transitions. [2022-11-20 11:59:13,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 147 transitions, 1406 flow [2022-11-20 11:59:13,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 147 transitions, 978 flow, removed 125 selfloop flow, removed 36 redundant places. [2022-11-20 11:59:13,960 INFO L231 Difference]: Finished difference. Result has 141 places, 109 transitions, 594 flow [2022-11-20 11:59:13,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=141, PETRI_TRANSITIONS=109} [2022-11-20 11:59:13,962 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-20 11:59:13,962 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 109 transitions, 594 flow [2022-11-20 11:59:13,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:13,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:13,963 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] [2022-11-20 11:59:13,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:59:13,964 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:13,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2029195320, now seen corresponding path program 9 times [2022-11-20 11:59:13,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:13,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212765571] [2022-11-20 11:59:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:14,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:14,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212765571] [2022-11-20 11:59:14,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212765571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:14,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:14,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:14,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865111618] [2022-11-20 11:59:14,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:14,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:14,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:14,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:14,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:14,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:14,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 109 transitions, 594 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:14,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:14,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:14,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:15,109 INFO L130 PetriNetUnfolder]: 83/381 cut-off events. [2022-11-20 11:59:15,109 INFO L131 PetriNetUnfolder]: For 948/962 co-relation queries the response was YES. [2022-11-20 11:59:15,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 381 events. 83/381 cut-off events. For 948/962 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1614 event pairs, 21 based on Foata normal form. 16/395 useless extension candidates. Maximal degree in co-relation 1239. Up to 161 conditions per place. [2022-11-20 11:59:15,114 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 59 selfloop transitions, 7 changer transitions 52/154 dead transitions. [2022-11-20 11:59:15,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 1102 flow [2022-11-20 11:59:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 544 transitions. [2022-11-20 11:59:15,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2022-11-20 11:59:15,117 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 544 transitions. [2022-11-20 11:59:15,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 544 transitions. [2022-11-20 11:59:15,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:15,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 544 transitions. [2022-11-20 11:59:15,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.333333333333336) internal successors, (544), 12 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,123 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,123 INFO L175 Difference]: Start difference. First operand has 141 places, 109 transitions, 594 flow. Second operand 12 states and 544 transitions. [2022-11-20 11:59:15,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 1102 flow [2022-11-20 11:59:15,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 154 transitions, 1046 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-11-20 11:59:15,134 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 475 flow [2022-11-20 11:59:15,135 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=475, PETRI_PLACES=141, PETRI_TRANSITIONS=100} [2022-11-20 11:59:15,136 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-20 11:59:15,136 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 475 flow [2022-11-20 11:59:15,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:15,137 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] [2022-11-20 11:59:15,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:59:15,138 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1014686740, now seen corresponding path program 10 times [2022-11-20 11:59:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:15,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777145207] [2022-11-20 11:59:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:15,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:15,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777145207] [2022-11-20 11:59:15,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777145207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:15,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:15,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881761104] [2022-11-20 11:59:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:15,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:15,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:15,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 100 transitions, 475 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:15,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:15,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:16,271 INFO L130 PetriNetUnfolder]: 60/318 cut-off events. [2022-11-20 11:59:16,272 INFO L131 PetriNetUnfolder]: For 661/668 co-relation queries the response was YES. [2022-11-20 11:59:16,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 318 events. 60/318 cut-off events. For 661/668 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1248 event pairs, 17 based on Foata normal form. 12/330 useless extension candidates. Maximal degree in co-relation 976. Up to 51 conditions per place. [2022-11-20 11:59:16,275 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 65 selfloop transitions, 14 changer transitions 35/150 dead transitions. [2022-11-20 11:59:16,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 1038 flow [2022-11-20 11:59:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 539 transitions. [2022-11-20 11:59:16,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347222222222222 [2022-11-20 11:59:16,278 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 539 transitions. [2022-11-20 11:59:16,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 539 transitions. [2022-11-20 11:59:16,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:16,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 539 transitions. [2022-11-20 11:59:16,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.916666666666664) internal successors, (539), 12 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:16,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:16,284 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:16,284 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 475 flow. Second operand 12 states and 539 transitions. [2022-11-20 11:59:16,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 1038 flow [2022-11-20 11:59:16,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 150 transitions, 932 flow, removed 41 selfloop flow, removed 16 redundant places. [2022-11-20 11:59:16,293 INFO L231 Difference]: Finished difference. Result has 129 places, 95 transitions, 427 flow [2022-11-20 11:59:16,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=427, PETRI_PLACES=129, PETRI_TRANSITIONS=95} [2022-11-20 11:59:16,294 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 43 predicate places. [2022-11-20 11:59:16,295 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 95 transitions, 427 flow [2022-11-20 11:59:16,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:16,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:16,296 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] [2022-11-20 11:59:16,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:59:16,296 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash -733128924, now seen corresponding path program 11 times [2022-11-20 11:59:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:16,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2579006] [2022-11-20 11:59:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:16,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:16,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2579006] [2022-11-20 11:59:16,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2579006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:16,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:16,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67101582] [2022-11-20 11:59:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:16,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:16,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:16,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:16,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 95 transitions, 427 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:16,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:16,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:16,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:17,404 INFO L130 PetriNetUnfolder]: 40/257 cut-off events. [2022-11-20 11:59:17,405 INFO L131 PetriNetUnfolder]: For 459/461 co-relation queries the response was YES. [2022-11-20 11:59:17,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 257 events. 40/257 cut-off events. For 459/461 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 867 event pairs, 20 based on Foata normal form. 7/264 useless extension candidates. Maximal degree in co-relation 759. Up to 83 conditions per place. [2022-11-20 11:59:17,408 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 49 selfloop transitions, 17 changer transitions 11/113 dead transitions. [2022-11-20 11:59:17,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 113 transitions, 694 flow [2022-11-20 11:59:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:59:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:59:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 532 transitions. [2022-11-20 11:59:17,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-11-20 11:59:17,411 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 532 transitions. [2022-11-20 11:59:17,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 532 transitions. [2022-11-20 11:59:17,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:17,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 532 transitions. [2022-11-20 11:59:17,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.333333333333336) internal successors, (532), 12 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:17,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:17,421 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:17,422 INFO L175 Difference]: Start difference. First operand has 129 places, 95 transitions, 427 flow. Second operand 12 states and 532 transitions. [2022-11-20 11:59:17,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 113 transitions, 694 flow [2022-11-20 11:59:17,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 113 transitions, 622 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-20 11:59:17,428 INFO L231 Difference]: Finished difference. Result has 130 places, 97 transitions, 439 flow [2022-11-20 11:59:17,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=439, PETRI_PLACES=130, PETRI_TRANSITIONS=97} [2022-11-20 11:59:17,431 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2022-11-20 11:59:17,431 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 97 transitions, 439 flow [2022-11-20 11:59:17,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:17,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:17,432 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] [2022-11-20 11:59:17,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:59:17,433 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:17,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1110758482, now seen corresponding path program 12 times [2022-11-20 11:59:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:17,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563034691] [2022-11-20 11:59:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:18,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:18,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563034691] [2022-11-20 11:59:18,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563034691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:18,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:18,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:18,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293551729] [2022-11-20 11:59:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:18,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:18,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:18,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:18,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:18,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:18,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 97 transitions, 439 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:18,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:18,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:18,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:18,611 INFO L130 PetriNetUnfolder]: 32/213 cut-off events. [2022-11-20 11:59:18,612 INFO L131 PetriNetUnfolder]: For 383/385 co-relation queries the response was YES. [2022-11-20 11:59:18,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 213 events. 32/213 cut-off events. For 383/385 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 586 event pairs, 12 based on Foata normal form. 12/225 useless extension candidates. Maximal degree in co-relation 626. Up to 45 conditions per place. [2022-11-20 11:59:18,614 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 44 selfloop transitions, 11 changer transitions 33/124 dead transitions. [2022-11-20 11:59:18,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 124 transitions, 761 flow [2022-11-20 11:59:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 573 transitions. [2022-11-20 11:59:18,617 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5247252747252747 [2022-11-20 11:59:18,617 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 573 transitions. [2022-11-20 11:59:18,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 573 transitions. [2022-11-20 11:59:18,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:18,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 573 transitions. [2022-11-20 11:59:18,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 44.07692307692308) internal successors, (573), 13 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:18,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:18,622 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:18,624 INFO L175 Difference]: Start difference. First operand has 130 places, 97 transitions, 439 flow. Second operand 13 states and 573 transitions. [2022-11-20 11:59:18,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 124 transitions, 761 flow [2022-11-20 11:59:18,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 124 transitions, 730 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-20 11:59:18,630 INFO L231 Difference]: Finished difference. Result has 135 places, 90 transitions, 362 flow [2022-11-20 11:59:18,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=362, PETRI_PLACES=135, PETRI_TRANSITIONS=90} [2022-11-20 11:59:18,632 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 49 predicate places. [2022-11-20 11:59:18,632 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 90 transitions, 362 flow [2022-11-20 11:59:18,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:18,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:18,633 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] [2022-11-20 11:59:18,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:59:18,633 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:18,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:18,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1634738408, now seen corresponding path program 13 times [2022-11-20 11:59:18,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:18,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472604716] [2022-11-20 11:59:18,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:18,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:19,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:19,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472604716] [2022-11-20 11:59:19,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472604716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:19,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:19,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:19,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326040439] [2022-11-20 11:59:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:19,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:19,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:19,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:19,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:19,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 90 transitions, 362 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:19,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:19,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:19,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:19,711 INFO L130 PetriNetUnfolder]: 26/189 cut-off events. [2022-11-20 11:59:19,711 INFO L131 PetriNetUnfolder]: For 301/303 co-relation queries the response was YES. [2022-11-20 11:59:19,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 189 events. 26/189 cut-off events. For 301/303 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 469 event pairs, 7 based on Foata normal form. 12/201 useless extension candidates. Maximal degree in co-relation 527. Up to 43 conditions per place. [2022-11-20 11:59:19,713 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 44 selfloop transitions, 10 changer transitions 29/119 dead transitions. [2022-11-20 11:59:19,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 119 transitions, 681 flow [2022-11-20 11:59:19,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:59:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 11:59:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 613 transitions. [2022-11-20 11:59:19,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5212585034013606 [2022-11-20 11:59:19,719 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 613 transitions. [2022-11-20 11:59:19,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 613 transitions. [2022-11-20 11:59:19,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:19,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 613 transitions. [2022-11-20 11:59:19,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 43.785714285714285) internal successors, (613), 14 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:19,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:19,727 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:19,727 INFO L175 Difference]: Start difference. First operand has 135 places, 90 transitions, 362 flow. Second operand 14 states and 613 transitions. [2022-11-20 11:59:19,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 119 transitions, 681 flow [2022-11-20 11:59:19,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 605 flow, removed 15 selfloop flow, removed 17 redundant places. [2022-11-20 11:59:19,732 INFO L231 Difference]: Finished difference. Result has 124 places, 86 transitions, 299 flow [2022-11-20 11:59:19,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=299, PETRI_PLACES=124, PETRI_TRANSITIONS=86} [2022-11-20 11:59:19,734 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 38 predicate places. [2022-11-20 11:59:19,734 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 86 transitions, 299 flow [2022-11-20 11:59:19,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:19,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:19,735 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] [2022-11-20 11:59:19,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:59:19,736 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-20 11:59:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:19,737 INFO L85 PathProgramCache]: Analyzing trace with hash 969712462, now seen corresponding path program 14 times [2022-11-20 11:59:19,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:19,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339761020] [2022-11-20 11:59:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:19,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:20,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:20,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339761020] [2022-11-20 11:59:20,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339761020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:20,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:20,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:59:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730081289] [2022-11-20 11:59:20,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:20,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:20,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:20,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:20,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-20 11:59:20,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 86 transitions, 299 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:20,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:20,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-20 11:59:20,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:59:20,726 INFO L130 PetriNetUnfolder]: 10/113 cut-off events. [2022-11-20 11:59:20,727 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-11-20 11:59:20,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 113 events. 10/113 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 10/123 useless extension candidates. Maximal degree in co-relation 288. Up to 19 conditions per place. [2022-11-20 11:59:20,728 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-20 11:59:20,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 98 transitions, 496 flow [2022-11-20 11:59:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:59:20,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:59:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 561 transitions. [2022-11-20 11:59:20,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5137362637362637 [2022-11-20 11:59:20,733 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 561 transitions. [2022-11-20 11:59:20,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 561 transitions. [2022-11-20 11:59:20,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:59:20,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 561 transitions. [2022-11-20 11:59:20,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 43.15384615384615) internal successors, (561), 13 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:20,739 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:20,739 INFO L175 Difference]: Start difference. First operand has 124 places, 86 transitions, 299 flow. Second operand 13 states and 561 transitions. [2022-11-20 11:59:20,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 98 transitions, 496 flow [2022-11-20 11:59:20,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 98 transitions, 444 flow, removed 11 selfloop flow, removed 13 redundant places. [2022-11-20 11:59:20,743 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-20 11:59:20,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-20 11:59:20,745 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 30 predicate places. [2022-11-20 11:59:20,746 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-20 11:59:20,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:20,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-20 11:59:20,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-20 11:59:20,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-20 11:59:20,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-20 11:59:20,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:59:20,752 INFO L444 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1] [2022-11-20 11:59:20,761 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:59:20,761 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:59:20,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:59:20 BasicIcfg [2022-11-20 11:59:20,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:59:20,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:59:20,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:59:20,769 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:59:20,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:55" (3/4) ... [2022-11-20 11:59:20,775 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:59:20,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:59:20,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 11:59:20,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:59:20,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:59:20,844 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:59:20,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:59:20,846 INFO L158 Benchmark]: Toolchain (without parser) took 27483.29ms. Allocated memory was 134.2MB in the beginning and 390.1MB in the end (delta: 255.9MB). Free memory was 94.8MB in the beginning and 328.8MB in the end (delta: -234.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,846 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 134.2MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:59:20,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.67ms. Allocated memory is still 134.2MB. Free memory was 94.4MB in the beginning and 67.4MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.58ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 65.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,847 INFO L158 Benchmark]: Boogie Preprocessor took 35.91ms. Allocated memory is still 134.2MB. Free memory was 65.0MB in the beginning and 63.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,848 INFO L158 Benchmark]: RCFGBuilder took 838.55ms. Allocated memory is still 134.2MB. Free memory was 63.4MB in the beginning and 103.9MB in the end (delta: -40.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,848 INFO L158 Benchmark]: TraceAbstraction took 25543.89ms. Allocated memory was 134.2MB in the beginning and 390.1MB in the end (delta: 255.9MB). Free memory was 103.3MB in the beginning and 332.0MB in the end (delta: -228.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,849 INFO L158 Benchmark]: Witness Printer took 76.73ms. Allocated memory is still 390.1MB. Free memory was 332.0MB in the beginning and 328.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:59:20,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 134.2MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.67ms. Allocated memory is still 134.2MB. Free memory was 94.4MB in the beginning and 67.4MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.58ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 65.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.91ms. Allocated memory is still 134.2MB. Free memory was 65.0MB in the beginning and 63.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 838.55ms. Allocated memory is still 134.2MB. Free memory was 63.4MB in the beginning and 103.9MB in the end (delta: -40.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25543.89ms. Allocated memory was 134.2MB in the beginning and 390.1MB in the end (delta: 255.9MB). Free memory was 103.3MB in the beginning and 332.0MB in the end (delta: -228.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 76.73ms. Allocated memory is still 390.1MB. Free memory was 332.0MB in the beginning and 328.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: 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, 101 locations, 4 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: 25.3s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2230 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2230 mSDsluCounter, 831 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 524 mSDsCounter, 478 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5335 IncrementalHoareTripleChecker+Invalid, 5813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 478 mSolverCounterUnsat, 307 mSDtfsCounter, 5335 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2604occurred in iteration=10, InterpolantAutomatonStates: 210, 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, 0.2s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1099 NumberOfCodeBlocks, 1099 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1081 ConstructedInterpolants, 0 QuantifiedInterpolants, 7599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:59:20,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdd5421-052b-42af-b6e6-eb78e536bc0d/bin/uautomizer-ug76WZFUDN/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