./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:15:37,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:15:37,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:15:37,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:15:37,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:15:37,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:15:37,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:15:37,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:15:37,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:15:37,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:15:37,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:15:37,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:15:37,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:15:37,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:15:37,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:15:37,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:15:37,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:15:37,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:15:37,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:15:37,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:15:37,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:15:37,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:15:37,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:15:37,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:15:38,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:15:38,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:15:38,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:15:38,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:15:38,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:15:38,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:15:38,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:15:38,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:15:38,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:15:38,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:15:38,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:15:38,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:15:38,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:15:38,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:15:38,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:15:38,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:15:38,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:15:38,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:15:38,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:15:38,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:15:38,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:15:38,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:15:38,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:15:38,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:15:38,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:15:38,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:15:38,089 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:15:38,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:15:38,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:15:38,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:15:38,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:15:38,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:15:38,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:15:38,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:15:38,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:15:38,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:15:38,092 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:15:38,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:15:38,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:15:38,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:15:38,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:15:38,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:15:38,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:15:38,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:15:38,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:15:38,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:15:38,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:15:38,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:15:38,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:15:38,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:15:38,098 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:15:38,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:15:38,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:15:38,099 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_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 [2022-11-02 20:15:38,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:15:38,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:15:38,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:15:38,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:15:38,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:15:38,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-11-02 20:15:38,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/data/a51d763e8/007b5aba9e34498286e5aee46779d1de/FLAGe6ec628dc [2022-11-02 20:15:39,326 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:15:39,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-11-02 20:15:39,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/data/a51d763e8/007b5aba9e34498286e5aee46779d1de/FLAGe6ec628dc [2022-11-02 20:15:39,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/data/a51d763e8/007b5aba9e34498286e5aee46779d1de [2022-11-02 20:15:39,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:15:39,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:15:39,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:39,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:15:39,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:15:39,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:39" (1/1) ... [2022-11-02 20:15:39,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fa36e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:39, skipping insertion in model container [2022-11-02 20:15:39,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:39" (1/1) ... [2022-11-02 20:15:39,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:15:39,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:15:40,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-11-02 20:15:40,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:40,119 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:15:40,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-11-02 20:15:40,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:40,173 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:15:40,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40 WrapperNode [2022-11-02 20:15:40,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:40,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:40,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:15:40,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:15:40,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,229 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 160 [2022-11-02 20:15:40,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:40,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:15:40,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:15:40,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:15:40,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:15:40,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:15:40,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:15:40,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:15:40,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (1/1) ... [2022-11-02 20:15:40,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:15:40,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:40,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:40,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:15:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:15:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:15:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:15:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:15:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:15:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:15:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:15:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:15:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:15:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:15:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:15:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:15:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:15:40,450 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:15:40,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:15:40,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:15:41,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:15:41,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:15:41,406 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:15:41,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:41 BoogieIcfgContainer [2022-11-02 20:15:41,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:15:41,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:15:41,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:15:41,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:15:41,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:15:39" (1/3) ... [2022-11-02 20:15:41,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f1fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:15:41, skipping insertion in model container [2022-11-02 20:15:41,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:40" (2/3) ... [2022-11-02 20:15:41,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f1fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:15:41, skipping insertion in model container [2022-11-02 20:15:41,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:41" (3/3) ... [2022-11-02 20:15:41,421 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2022-11-02 20:15:41,431 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:15:41,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:15:41,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-02 20:15:41,446 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:15:41,641 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:15:41,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 333 transitions, 682 flow [2022-11-02 20:15:41,844 INFO L130 PetriNetUnfolder]: 17/331 cut-off events. [2022-11-02 20:15:41,844 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:15:41,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 331 events. 17/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 590 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2022-11-02 20:15:41,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 333 transitions, 682 flow [2022-11-02 20:15:41,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 313 transitions, 638 flow [2022-11-02 20:15:41,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:15:41,884 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;@66a14013, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:15:41,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2022-11-02 20:15:41,892 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-02 20:15:41,892 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:15:41,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:41,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:41,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1014690004, now seen corresponding path program 1 times [2022-11-02 20:15:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:41,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872571471] [2022-11-02 20:15:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:42,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:42,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872571471] [2022-11-02 20:15:42,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872571471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:42,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:42,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:42,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356838185] [2022-11-02 20:15:42,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:42,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:42,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:42,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:42,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:42,291 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 333 [2022-11-02 20:15:42,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 313 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:42,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 333 [2022-11-02 20:15:42,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:42,648 INFO L130 PetriNetUnfolder]: 38/661 cut-off events. [2022-11-02 20:15:42,649 INFO L131 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2022-11-02 20:15:42,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 661 events. 38/661 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2875 event pairs, 15 based on Foata normal form. 16/548 useless extension candidates. Maximal degree in co-relation 476. Up to 48 conditions per place. [2022-11-02 20:15:42,666 INFO L137 encePairwiseOnDemand]: 322/333 looper letters, 16 selfloop transitions, 2 changer transitions 4/304 dead transitions. [2022-11-02 20:15:42,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 304 transitions, 656 flow [2022-11-02 20:15:42,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 939 transitions. [2022-11-02 20:15:42,699 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.93993993993994 [2022-11-02 20:15:42,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 939 transitions. [2022-11-02 20:15:42,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 939 transitions. [2022-11-02 20:15:42,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:42,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 939 transitions. [2022-11-02 20:15:42,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,736 INFO L175 Difference]: Start difference. First operand has 304 places, 313 transitions, 638 flow. Second operand 3 states and 939 transitions. [2022-11-02 20:15:42,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 304 transitions, 656 flow [2022-11-02 20:15:42,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 304 transitions, 648 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:15:42,759 INFO L231 Difference]: Finished difference. Result has 301 places, 300 transitions, 608 flow [2022-11-02 20:15:42,762 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=301, PETRI_TRANSITIONS=300} [2022-11-02 20:15:42,768 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -3 predicate places. [2022-11-02 20:15:42,769 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 300 transitions, 608 flow [2022-11-02 20:15:42,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:42,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:42,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:15:42,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash -823178832, now seen corresponding path program 1 times [2022-11-02 20:15:42,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:42,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739485349] [2022-11-02 20:15:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:42,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:42,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739485349] [2022-11-02 20:15:42,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739485349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:42,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:42,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:42,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481633162] [2022-11-02 20:15:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:42,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:42,913 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 333 [2022-11-02 20:15:42,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 300 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:42,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:42,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 333 [2022-11-02 20:15:42,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:43,136 INFO L130 PetriNetUnfolder]: 43/681 cut-off events. [2022-11-02 20:15:43,136 INFO L131 PetriNetUnfolder]: For 9/20 co-relation queries the response was YES. [2022-11-02 20:15:43,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 681 events. 43/681 cut-off events. For 9/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3204 event pairs, 15 based on Foata normal form. 0/550 useless extension candidates. Maximal degree in co-relation 710. Up to 51 conditions per place. [2022-11-02 20:15:43,146 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 16 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-02 20:15:43,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 299 transitions, 642 flow [2022-11-02 20:15:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2022-11-02 20:15:43,150 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9319319319319319 [2022-11-02 20:15:43,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2022-11-02 20:15:43,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2022-11-02 20:15:43,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:43,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2022-11-02 20:15:43,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,158 INFO L175 Difference]: Start difference. First operand has 301 places, 300 transitions, 608 flow. Second operand 3 states and 931 transitions. [2022-11-02 20:15:43,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 299 transitions, 642 flow [2022-11-02 20:15:43,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 299 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:43,168 INFO L231 Difference]: Finished difference. Result has 296 places, 299 transitions, 606 flow [2022-11-02 20:15:43,169 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=296, PETRI_TRANSITIONS=299} [2022-11-02 20:15:43,170 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -8 predicate places. [2022-11-02 20:15:43,170 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 299 transitions, 606 flow [2022-11-02 20:15:43,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:43,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:43,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:15:43,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash -821646170, now seen corresponding path program 1 times [2022-11-02 20:15:43,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249607914] [2022-11-02 20:15:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:43,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:43,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249607914] [2022-11-02 20:15:43,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249607914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:43,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:43,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768993952] [2022-11-02 20:15:43,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:43,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:43,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:43,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:43,242 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-02 20:15:43,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 299 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:43,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-02 20:15:43,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:43,478 INFO L130 PetriNetUnfolder]: 29/589 cut-off events. [2022-11-02 20:15:43,479 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-02 20:15:43,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 589 events. 29/589 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2333 event pairs, 8 based on Foata normal form. 0/489 useless extension candidates. Maximal degree in co-relation 586. Up to 27 conditions per place. [2022-11-02 20:15:43,488 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 1 changer transitions 0/296 dead transitions. [2022-11-02 20:15:43,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 296 transitions, 624 flow [2022-11-02 20:15:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:43,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-02 20:15:43,493 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2022-11-02 20:15:43,493 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-02 20:15:43,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-02 20:15:43,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:43,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-02 20:15:43,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,504 INFO L175 Difference]: Start difference. First operand has 296 places, 299 transitions, 606 flow. Second operand 3 states and 936 transitions. [2022-11-02 20:15:43,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 296 transitions, 624 flow [2022-11-02 20:15:43,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 296 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:43,515 INFO L231 Difference]: Finished difference. Result has 293 places, 296 transitions, 598 flow [2022-11-02 20:15:43,516 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=293, PETRI_TRANSITIONS=296} [2022-11-02 20:15:43,519 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-02 20:15:43,519 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 296 transitions, 598 flow [2022-11-02 20:15:43,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:43,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:43,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:15:43,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:43,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash 683130443, now seen corresponding path program 1 times [2022-11-02 20:15:43,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023214343] [2022-11-02 20:15:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:43,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023214343] [2022-11-02 20:15:43,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023214343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:43,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:43,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:43,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666807280] [2022-11-02 20:15:43,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:43,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:43,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:43,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:43,678 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-02 20:15:43,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 296 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:43,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-02 20:15:43,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:43,872 INFO L130 PetriNetUnfolder]: 36/579 cut-off events. [2022-11-02 20:15:43,872 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 20:15:43,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 579 events. 36/579 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2288 event pairs, 15 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 598. Up to 49 conditions per place. [2022-11-02 20:15:43,879 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 13 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2022-11-02 20:15:43,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 295 transitions, 626 flow [2022-11-02 20:15:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2022-11-02 20:15:43,883 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9379379379379379 [2022-11-02 20:15:43,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 937 transitions. [2022-11-02 20:15:43,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 937 transitions. [2022-11-02 20:15:43,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:43,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 937 transitions. [2022-11-02 20:15:43,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,898 INFO L175 Difference]: Start difference. First operand has 293 places, 296 transitions, 598 flow. Second operand 3 states and 937 transitions. [2022-11-02 20:15:43,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 295 transitions, 626 flow [2022-11-02 20:15:43,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 295 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:15:43,906 INFO L231 Difference]: Finished difference. Result has 293 places, 295 transitions, 599 flow [2022-11-02 20:15:43,907 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=293, PETRI_TRANSITIONS=295} [2022-11-02 20:15:43,909 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-02 20:15:43,917 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 295 transitions, 599 flow [2022-11-02 20:15:43,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:43,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:43,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:43,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:15:43,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1826745883, now seen corresponding path program 1 times [2022-11-02 20:15:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057099270] [2022-11-02 20:15:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:44,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:44,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057099270] [2022-11-02 20:15:44,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057099270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:44,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:44,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:15:44,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216373751] [2022-11-02 20:15:44,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:44,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:15:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:44,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:15:44,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:15:44,862 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 333 [2022-11-02 20:15:44,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 295 transitions, 599 flow. Second operand has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:44,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:44,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 333 [2022-11-02 20:15:44,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:47,150 INFO L130 PetriNetUnfolder]: 2289/7102 cut-off events. [2022-11-02 20:15:47,150 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-02 20:15:47,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10568 conditions, 7102 events. 2289/7102 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 66744 event pairs, 2112 based on Foata normal form. 0/5765 useless extension candidates. Maximal degree in co-relation 10529. Up to 3437 conditions per place. [2022-11-02 20:15:47,223 INFO L137 encePairwiseOnDemand]: 321/333 looper letters, 62 selfloop transitions, 10 changer transitions 0/293 dead transitions. [2022-11-02 20:15:47,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 293 transitions, 739 flow [2022-11-02 20:15:47,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:15:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:15:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1568 transitions. [2022-11-02 20:15:47,229 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7847847847847848 [2022-11-02 20:15:47,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1568 transitions. [2022-11-02 20:15:47,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1568 transitions. [2022-11-02 20:15:47,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:47,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1568 transitions. [2022-11-02 20:15:47,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.3333333333333) internal successors, (1568), 6 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,243 INFO L175 Difference]: Start difference. First operand has 293 places, 295 transitions, 599 flow. Second operand 6 states and 1568 transitions. [2022-11-02 20:15:47,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 293 transitions, 739 flow [2022-11-02 20:15:47,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 293 transitions, 735 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:47,252 INFO L231 Difference]: Finished difference. Result has 294 places, 293 transitions, 611 flow [2022-11-02 20:15:47,253 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=611, PETRI_PLACES=294, PETRI_TRANSITIONS=293} [2022-11-02 20:15:47,256 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -10 predicate places. [2022-11-02 20:15:47,257 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 293 transitions, 611 flow [2022-11-02 20:15:47,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:47,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:47,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:15:47,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1878510047, now seen corresponding path program 1 times [2022-11-02 20:15:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:47,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023368013] [2022-11-02 20:15:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:47,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023368013] [2022-11-02 20:15:47,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023368013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:47,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:47,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003786006] [2022-11-02 20:15:47,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:47,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:47,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:47,360 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-02 20:15:47,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 293 transitions, 611 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:47,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-02 20:15:47,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:47,530 INFO L130 PetriNetUnfolder]: 32/595 cut-off events. [2022-11-02 20:15:47,530 INFO L131 PetriNetUnfolder]: For 7/12 co-relation queries the response was YES. [2022-11-02 20:15:47,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 595 events. 32/595 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2503 event pairs, 8 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 611. Up to 29 conditions per place. [2022-11-02 20:15:47,548 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 1 changer transitions 0/290 dead transitions. [2022-11-02 20:15:47,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 290 transitions, 629 flow [2022-11-02 20:15:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-02 20:15:47,552 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2022-11-02 20:15:47,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-02 20:15:47,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-02 20:15:47,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:47,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-02 20:15:47,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,562 INFO L175 Difference]: Start difference. First operand has 294 places, 293 transitions, 611 flow. Second operand 3 states and 936 transitions. [2022-11-02 20:15:47,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 290 transitions, 629 flow [2022-11-02 20:15:47,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 290 transitions, 609 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:15:47,571 INFO L231 Difference]: Finished difference. Result has 288 places, 290 transitions, 587 flow [2022-11-02 20:15:47,571 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=587, PETRI_PLACES=288, PETRI_TRANSITIONS=290} [2022-11-02 20:15:47,574 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -16 predicate places. [2022-11-02 20:15:47,575 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 290 transitions, 587 flow [2022-11-02 20:15:47,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:47,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:47,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:15:47,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1304918206, now seen corresponding path program 1 times [2022-11-02 20:15:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243931493] [2022-11-02 20:15:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:47,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:47,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:47,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243931493] [2022-11-02 20:15:47,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243931493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:47,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:47,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:47,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634939048] [2022-11-02 20:15:47,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:47,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:47,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:47,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:47,711 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-02 20:15:47,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 290 transitions, 587 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:47,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-02 20:15:47,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:47,859 INFO L130 PetriNetUnfolder]: 36/559 cut-off events. [2022-11-02 20:15:47,859 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 20:15:47,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 559 events. 36/559 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2225 event pairs, 15 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 579. Up to 49 conditions per place. [2022-11-02 20:15:47,866 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 13 selfloop transitions, 2 changer transitions 0/289 dead transitions. [2022-11-02 20:15:47,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 289 transitions, 615 flow [2022-11-02 20:15:47,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2022-11-02 20:15:47,870 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9379379379379379 [2022-11-02 20:15:47,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 937 transitions. [2022-11-02 20:15:47,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 937 transitions. [2022-11-02 20:15:47,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:47,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 937 transitions. [2022-11-02 20:15:47,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,879 INFO L175 Difference]: Start difference. First operand has 288 places, 290 transitions, 587 flow. Second operand 3 states and 937 transitions. [2022-11-02 20:15:47,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 289 transitions, 615 flow [2022-11-02 20:15:47,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 289 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:15:47,886 INFO L231 Difference]: Finished difference. Result has 288 places, 289 transitions, 588 flow [2022-11-02 20:15:47,887 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=288, PETRI_TRANSITIONS=289} [2022-11-02 20:15:47,890 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -16 predicate places. [2022-11-02 20:15:47,890 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 289 transitions, 588 flow [2022-11-02 20:15:47,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:47,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:47,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:15:47,892 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:47,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1305162347, now seen corresponding path program 1 times [2022-11-02 20:15:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:47,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759363365] [2022-11-02 20:15:47,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:47,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759363365] [2022-11-02 20:15:47,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759363365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:47,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:47,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625813308] [2022-11-02 20:15:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:47,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:47,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:47,971 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 333 [2022-11-02 20:15:47,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 289 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:47,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:47,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 333 [2022-11-02 20:15:47,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:48,087 INFO L130 PetriNetUnfolder]: 27/426 cut-off events. [2022-11-02 20:15:48,088 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:15:48,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 426 events. 27/426 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1479 event pairs, 9 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 454. Up to 34 conditions per place. [2022-11-02 20:15:48,093 INFO L137 encePairwiseOnDemand]: 325/333 looper letters, 18 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2022-11-02 20:15:48,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 284 transitions, 619 flow [2022-11-02 20:15:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2022-11-02 20:15:48,097 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9209209209209209 [2022-11-02 20:15:48,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2022-11-02 20:15:48,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2022-11-02 20:15:48,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:48,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2022-11-02 20:15:48,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,105 INFO L175 Difference]: Start difference. First operand has 288 places, 289 transitions, 588 flow. Second operand 3 states and 920 transitions. [2022-11-02 20:15:48,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 284 transitions, 619 flow [2022-11-02 20:15:48,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:48,113 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 576 flow [2022-11-02 20:15:48,114 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2022-11-02 20:15:48,117 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -22 predicate places. [2022-11-02 20:15:48,117 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 576 flow [2022-11-02 20:15:48,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:48,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:48,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:15:48,119 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash -274364446, now seen corresponding path program 1 times [2022-11-02 20:15:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:48,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250354036] [2022-11-02 20:15:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:48,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:48,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250354036] [2022-11-02 20:15:48,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250354036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:48,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:48,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869195878] [2022-11-02 20:15:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:48,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:48,227 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 333 [2022-11-02 20:15:48,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:48,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 333 [2022-11-02 20:15:48,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:48,330 INFO L130 PetriNetUnfolder]: 24/348 cut-off events. [2022-11-02 20:15:48,330 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 20:15:48,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 348 events. 24/348 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1066 event pairs, 3 based on Foata normal form. 1/318 useless extension candidates. Maximal degree in co-relation 362. Up to 32 conditions per place. [2022-11-02 20:15:48,334 INFO L137 encePairwiseOnDemand]: 325/333 looper letters, 15 selfloop transitions, 2 changer transitions 5/278 dead transitions. [2022-11-02 20:15:48,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 278 transitions, 605 flow [2022-11-02 20:15:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2022-11-02 20:15:48,338 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.91991991991992 [2022-11-02 20:15:48,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2022-11-02 20:15:48,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2022-11-02 20:15:48,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:48,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2022-11-02 20:15:48,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,345 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 576 flow. Second operand 3 states and 919 transitions. [2022-11-02 20:15:48,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 278 transitions, 605 flow [2022-11-02 20:15:48,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 278 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:48,353 INFO L231 Difference]: Finished difference. Result has 276 places, 272 transitions, 553 flow [2022-11-02 20:15:48,354 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=276, PETRI_TRANSITIONS=272} [2022-11-02 20:15:48,355 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -28 predicate places. [2022-11-02 20:15:48,355 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 272 transitions, 553 flow [2022-11-02 20:15:48,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:48,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:48,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:15:48,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash -524389823, now seen corresponding path program 1 times [2022-11-02 20:15:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:48,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982774565] [2022-11-02 20:15:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:48,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:48,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:48,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982774565] [2022-11-02 20:15:48,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982774565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:48,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:48,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:15:48,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286987618] [2022-11-02 20:15:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:48,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:48,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:48,427 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 333 [2022-11-02 20:15:48,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 272 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:48,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 333 [2022-11-02 20:15:48,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:48,507 INFO L130 PetriNetUnfolder]: 19/336 cut-off events. [2022-11-02 20:15:48,507 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:15:48,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 336 events. 19/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 778 event pairs, 6 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 343. Up to 22 conditions per place. [2022-11-02 20:15:48,512 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 10 selfloop transitions, 3 changer transitions 0/274 dead transitions. [2022-11-02 20:15:48,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 274 transitions, 584 flow [2022-11-02 20:15:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-02 20:15:48,516 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9479479479479479 [2022-11-02 20:15:48,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-02 20:15:48,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-02 20:15:48,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:48,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-02 20:15:48,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,524 INFO L175 Difference]: Start difference. First operand has 276 places, 272 transitions, 553 flow. Second operand 3 states and 947 transitions. [2022-11-02 20:15:48,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 274 transitions, 584 flow [2022-11-02 20:15:48,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 274 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:48,532 INFO L231 Difference]: Finished difference. Result has 273 places, 273 transitions, 567 flow [2022-11-02 20:15:48,533 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=273, PETRI_TRANSITIONS=273} [2022-11-02 20:15:48,534 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -31 predicate places. [2022-11-02 20:15:48,534 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 273 transitions, 567 flow [2022-11-02 20:15:48,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:48,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:48,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:48,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:15:48,536 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:48,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash 357529083, now seen corresponding path program 1 times [2022-11-02 20:15:48,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:48,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253257759] [2022-11-02 20:15:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:48,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:49,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:49,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253257759] [2022-11-02 20:15:49,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253257759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:49,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:49,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:15:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951080948] [2022-11-02 20:15:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:49,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:15:49,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:15:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:15:49,199 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 333 [2022-11-02 20:15:49,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 273 transitions, 567 flow. Second operand has 6 states, 6 states have (on average 266.8333333333333) internal successors, (1601), 6 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:49,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:49,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 333 [2022-11-02 20:15:49,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:51,229 INFO L130 PetriNetUnfolder]: 2250/6089 cut-off events. [2022-11-02 20:15:51,230 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-02 20:15:51,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9542 conditions, 6089 events. 2250/6089 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 52270 event pairs, 1152 based on Foata normal form. 0/5307 useless extension candidates. Maximal degree in co-relation 9500. Up to 1150 conditions per place. [2022-11-02 20:15:51,293 INFO L137 encePairwiseOnDemand]: 328/333 looper letters, 144 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2022-11-02 20:15:51,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 368 transitions, 1053 flow [2022-11-02 20:15:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:15:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:15:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-02 20:15:51,299 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2022-11-02 20:15:51,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-02 20:15:51,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-02 20:15:51,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:51,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-02 20:15:51,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,332 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,333 INFO L175 Difference]: Start difference. First operand has 273 places, 273 transitions, 567 flow. Second operand 6 states and 1739 transitions. [2022-11-02 20:15:51,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 368 transitions, 1053 flow [2022-11-02 20:15:51,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 368 transitions, 1047 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:51,342 INFO L231 Difference]: Finished difference. Result has 275 places, 272 transitions, 567 flow [2022-11-02 20:15:51,343 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=567, PETRI_PLACES=275, PETRI_TRANSITIONS=272} [2022-11-02 20:15:51,344 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -29 predicate places. [2022-11-02 20:15:51,345 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 272 transitions, 567 flow [2022-11-02 20:15:51,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 266.8333333333333) internal successors, (1601), 6 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:51,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:51,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:15:51,346 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash -445101216, now seen corresponding path program 1 times [2022-11-02 20:15:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:51,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120203049] [2022-11-02 20:15:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:51,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:51,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120203049] [2022-11-02 20:15:51,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120203049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:51,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:51,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611376825] [2022-11-02 20:15:51,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:51,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:51,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:51,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:51,417 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 333 [2022-11-02 20:15:51,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 272 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:51,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 333 [2022-11-02 20:15:51,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:51,527 INFO L130 PetriNetUnfolder]: 26/508 cut-off events. [2022-11-02 20:15:51,528 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:15:51,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 508 events. 26/508 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1822 event pairs, 2 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 523. Up to 26 conditions per place. [2022-11-02 20:15:51,534 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2022-11-02 20:15:51,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 274 transitions, 599 flow [2022-11-02 20:15:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:51,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2022-11-02 20:15:51,538 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-11-02 20:15:51,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2022-11-02 20:15:51,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2022-11-02 20:15:51,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:51,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2022-11-02 20:15:51,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,547 INFO L175 Difference]: Start difference. First operand has 275 places, 272 transitions, 567 flow. Second operand 3 states and 945 transitions. [2022-11-02 20:15:51,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 274 transitions, 599 flow [2022-11-02 20:15:51,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 274 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:15:51,554 INFO L231 Difference]: Finished difference. Result has 272 places, 272 transitions, 570 flow [2022-11-02 20:15:51,555 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=272, PETRI_TRANSITIONS=272} [2022-11-02 20:15:51,556 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -32 predicate places. [2022-11-02 20:15:51,556 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 272 transitions, 570 flow [2022-11-02 20:15:51,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:51,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:51,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:15:51,558 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -550219634, now seen corresponding path program 1 times [2022-11-02 20:15:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:51,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20240947] [2022-11-02 20:15:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:51,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:51,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20240947] [2022-11-02 20:15:51,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20240947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:51,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:51,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:15:51,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430217099] [2022-11-02 20:15:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:51,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:51,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:51,635 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 333 [2022-11-02 20:15:51,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:51,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 333 [2022-11-02 20:15:51,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:51,766 INFO L130 PetriNetUnfolder]: 50/521 cut-off events. [2022-11-02 20:15:51,767 INFO L131 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2022-11-02 20:15:51,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 521 events. 50/521 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1816 event pairs, 12 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 592. Up to 57 conditions per place. [2022-11-02 20:15:51,774 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 10 selfloop transitions, 3 changer transitions 0/274 dead transitions. [2022-11-02 20:15:51,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 274 transitions, 601 flow [2022-11-02 20:15:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-02 20:15:51,778 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9479479479479479 [2022-11-02 20:15:51,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-02 20:15:51,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-02 20:15:51,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:51,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-02 20:15:51,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,786 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 570 flow. Second operand 3 states and 947 transitions. [2022-11-02 20:15:51,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 274 transitions, 601 flow [2022-11-02 20:15:51,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 274 transitions, 601 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:15:51,795 INFO L231 Difference]: Finished difference. Result has 276 places, 273 transitions, 588 flow [2022-11-02 20:15:51,796 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=276, PETRI_TRANSITIONS=273} [2022-11-02 20:15:51,797 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -28 predicate places. [2022-11-02 20:15:51,798 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 273 transitions, 588 flow [2022-11-02 20:15:51,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:51,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:51,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:15:51,799 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:51,800 INFO L85 PathProgramCache]: Analyzing trace with hash 52651253, now seen corresponding path program 1 times [2022-11-02 20:15:51,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:51,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83311943] [2022-11-02 20:15:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:51,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:51,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:51,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83311943] [2022-11-02 20:15:51,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83311943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:51,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:51,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767658360] [2022-11-02 20:15:51,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:51,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:15:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:51,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:51,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:51,891 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 333 [2022-11-02 20:15:51,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 273 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:51,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:51,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 333 [2022-11-02 20:15:51,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:52,044 INFO L130 PetriNetUnfolder]: 33/623 cut-off events. [2022-11-02 20:15:52,044 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 20:15:52,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 623 events. 33/623 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2427 event pairs, 3 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 699. Up to 29 conditions per place. [2022-11-02 20:15:52,051 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2022-11-02 20:15:52,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 275 transitions, 620 flow [2022-11-02 20:15:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:15:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:15:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2022-11-02 20:15:52,055 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-11-02 20:15:52,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2022-11-02 20:15:52,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2022-11-02 20:15:52,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:52,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2022-11-02 20:15:52,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:52,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:52,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:52,064 INFO L175 Difference]: Start difference. First operand has 276 places, 273 transitions, 588 flow. Second operand 3 states and 945 transitions. [2022-11-02 20:15:52,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 275 transitions, 620 flow [2022-11-02 20:15:52,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 275 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:15:52,072 INFO L231 Difference]: Finished difference. Result has 275 places, 273 transitions, 592 flow [2022-11-02 20:15:52,072 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=275, PETRI_TRANSITIONS=273} [2022-11-02 20:15:52,073 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -29 predicate places. [2022-11-02 20:15:52,074 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 273 transitions, 592 flow [2022-11-02 20:15:52,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:52,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:52,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:52,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:15:52,075 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:52,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2143177978, now seen corresponding path program 1 times [2022-11-02 20:15:52,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:52,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642571353] [2022-11-02 20:15:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:52,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642571353] [2022-11-02 20:15:52,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642571353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:15:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067877107] [2022-11-02 20:15:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:52,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:15:52,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:15:52,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:15:52,427 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-02 20:15:52,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 273 transitions, 592 flow. Second operand has 8 states, 8 states have (on average 257.875) internal successors, (2063), 8 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:52,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:52,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-02 20:15:52,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:53,051 INFO L130 PetriNetUnfolder]: 185/1199 cut-off events. [2022-11-02 20:15:53,051 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-02 20:15:53,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1199 events. 185/1199 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6660 event pairs, 62 based on Foata normal form. 4/1087 useless extension candidates. Maximal degree in co-relation 1787. Up to 179 conditions per place. [2022-11-02 20:15:53,066 INFO L137 encePairwiseOnDemand]: 317/333 looper letters, 115 selfloop transitions, 18 changer transitions 0/340 dead transitions. [2022-11-02 20:15:53,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 340 transitions, 1015 flow [2022-11-02 20:15:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:15:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:15:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3181 transitions. [2022-11-02 20:15:53,077 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.796046046046046 [2022-11-02 20:15:53,077 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3181 transitions. [2022-11-02 20:15:53,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3181 transitions. [2022-11-02 20:15:53,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:53,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3181 transitions. [2022-11-02 20:15:53,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 265.0833333333333) internal successors, (3181), 12 states have internal predecessors, (3181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:53,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 333.0) internal successors, (4329), 13 states have internal predecessors, (4329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:53,099 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 333.0) internal successors, (4329), 13 states have internal predecessors, (4329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:53,099 INFO L175 Difference]: Start difference. First operand has 275 places, 273 transitions, 592 flow. Second operand 12 states and 3181 transitions. [2022-11-02 20:15:53,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 340 transitions, 1015 flow [2022-11-02 20:15:53,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 340 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:15:53,110 INFO L231 Difference]: Finished difference. Result has 290 places, 283 transitions, 691 flow [2022-11-02 20:15:53,112 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=691, PETRI_PLACES=290, PETRI_TRANSITIONS=283} [2022-11-02 20:15:53,113 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -14 predicate places. [2022-11-02 20:15:53,113 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 283 transitions, 691 flow [2022-11-02 20:15:53,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 257.875) internal successors, (2063), 8 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:53,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:53,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:53,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:15:53,115 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1654511461, now seen corresponding path program 1 times [2022-11-02 20:15:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:53,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082275071] [2022-11-02 20:15:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:53,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:53,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082275071] [2022-11-02 20:15:53,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082275071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:53,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:53,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:15:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421692725] [2022-11-02 20:15:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:53,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:15:53,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:53,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:15:53,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:15:53,463 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-02 20:15:53,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 283 transitions, 691 flow. Second operand has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:53,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:53,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-02 20:15:53,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:15:54,375 INFO L130 PetriNetUnfolder]: 332/1822 cut-off events. [2022-11-02 20:15:54,375 INFO L131 PetriNetUnfolder]: For 342/342 co-relation queries the response was YES. [2022-11-02 20:15:54,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 1822 events. 332/1822 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 11979 event pairs, 109 based on Foata normal form. 0/1618 useless extension candidates. Maximal degree in co-relation 2873. Up to 290 conditions per place. [2022-11-02 20:15:54,396 INFO L137 encePairwiseOnDemand]: 317/333 looper letters, 115 selfloop transitions, 22 changer transitions 0/349 dead transitions. [2022-11-02 20:15:54,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 349 transitions, 1132 flow [2022-11-02 20:15:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:15:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:15:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3439 transitions. [2022-11-02 20:15:54,406 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7944097944097944 [2022-11-02 20:15:54,407 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3439 transitions. [2022-11-02 20:15:54,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3439 transitions. [2022-11-02 20:15:54,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:54,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3439 transitions. [2022-11-02 20:15:54,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 264.53846153846155) internal successors, (3439), 13 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:54,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 333.0) internal successors, (4662), 14 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:54,430 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 333.0) internal successors, (4662), 14 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:54,432 INFO L175 Difference]: Start difference. First operand has 290 places, 283 transitions, 691 flow. Second operand 13 states and 3439 transitions. [2022-11-02 20:15:54,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 349 transitions, 1132 flow [2022-11-02 20:15:54,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 349 transitions, 1130 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:15:54,445 INFO L231 Difference]: Finished difference. Result has 304 places, 291 transitions, 787 flow [2022-11-02 20:15:54,446 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=787, PETRI_PLACES=304, PETRI_TRANSITIONS=291} [2022-11-02 20:15:54,447 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, 0 predicate places. [2022-11-02 20:15:54,447 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 291 transitions, 787 flow [2022-11-02 20:15:54,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:54,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:15:54,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:15:54,449 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:15:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1939062022, now seen corresponding path program 1 times [2022-11-02 20:15:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:54,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279013506] [2022-11-02 20:15:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:54,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:55,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:55,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279013506] [2022-11-02 20:15:55,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279013506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:55,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:55,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:15:55,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248585186] [2022-11-02 20:15:55,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:55,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:15:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:55,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:15:55,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:15:55,093 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 333 [2022-11-02 20:15:55,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 291 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:15:55,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:15:55,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 333 [2022-11-02 20:15:55,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:02,696 INFO L130 PetriNetUnfolder]: 8351/27183 cut-off events. [2022-11-02 20:16:02,696 INFO L131 PetriNetUnfolder]: For 832/832 co-relation queries the response was YES. [2022-11-02 20:16:02,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44124 conditions, 27183 events. 8351/27183 cut-off events. For 832/832 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 280912 event pairs, 7214 based on Foata normal form. 0/24760 useless extension candidates. Maximal degree in co-relation 44061. Up to 11432 conditions per place. [2022-11-02 20:16:03,020 INFO L137 encePairwiseOnDemand]: 328/333 looper letters, 95 selfloop transitions, 4 changer transitions 9/338 dead transitions. [2022-11-02 20:16:03,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 338 transitions, 1079 flow [2022-11-02 20:16:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1690 transitions. [2022-11-02 20:16:03,026 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8458458458458459 [2022-11-02 20:16:03,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1690 transitions. [2022-11-02 20:16:03,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1690 transitions. [2022-11-02 20:16:03,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:03,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1690 transitions. [2022-11-02 20:16:03,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.6666666666667) internal successors, (1690), 6 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,038 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,039 INFO L175 Difference]: Start difference. First operand has 304 places, 291 transitions, 787 flow. Second operand 6 states and 1690 transitions. [2022-11-02 20:16:03,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 338 transitions, 1079 flow [2022-11-02 20:16:03,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 338 transitions, 1064 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:16:03,126 INFO L231 Difference]: Finished difference. Result has 302 places, 281 transitions, 720 flow [2022-11-02 20:16:03,126 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=720, PETRI_PLACES=302, PETRI_TRANSITIONS=281} [2022-11-02 20:16:03,127 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -2 predicate places. [2022-11-02 20:16:03,127 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 281 transitions, 720 flow [2022-11-02 20:16:03,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:03,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:03,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:16:03,130 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:03,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1298283305, now seen corresponding path program 1 times [2022-11-02 20:16:03,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:03,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14663368] [2022-11-02 20:16:03,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:03,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:16:03,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:03,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14663368] [2022-11-02 20:16:03,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14663368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:03,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:03,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:16:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631950538] [2022-11-02 20:16:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:03,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:16:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:03,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:16:03,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:16:03,606 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-02 20:16:03,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 281 transitions, 720 flow. Second operand has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:03,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:03,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-02 20:16:03,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:04,337 INFO L130 PetriNetUnfolder]: 218/1491 cut-off events. [2022-11-02 20:16:04,337 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2022-11-02 20:16:04,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2482 conditions, 1491 events. 218/1491 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8871 event pairs, 81 based on Foata normal form. 4/1378 useless extension candidates. Maximal degree in co-relation 2417. Up to 213 conditions per place. [2022-11-02 20:16:04,361 INFO L137 encePairwiseOnDemand]: 319/333 looper letters, 104 selfloop transitions, 18 changer transitions 0/332 dead transitions. [2022-11-02 20:16:04,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 332 transitions, 1103 flow [2022-11-02 20:16:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:16:04,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:16:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2915 transitions. [2022-11-02 20:16:04,369 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7957957957957958 [2022-11-02 20:16:04,369 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2915 transitions. [2022-11-02 20:16:04,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2915 transitions. [2022-11-02 20:16:04,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:04,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2915 transitions. [2022-11-02 20:16:04,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 265.0) internal successors, (2915), 11 states have internal predecessors, (2915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:04,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:04,390 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:04,391 INFO L175 Difference]: Start difference. First operand has 302 places, 281 transitions, 720 flow. Second operand 11 states and 2915 transitions. [2022-11-02 20:16:04,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 332 transitions, 1103 flow [2022-11-02 20:16:04,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 332 transitions, 1066 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-11-02 20:16:04,403 INFO L231 Difference]: Finished difference. Result has 300 places, 287 transitions, 781 flow [2022-11-02 20:16:04,404 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=781, PETRI_PLACES=300, PETRI_TRANSITIONS=287} [2022-11-02 20:16:04,404 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -4 predicate places. [2022-11-02 20:16:04,405 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 287 transitions, 781 flow [2022-11-02 20:16:04,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:04,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:04,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:04,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:16:04,407 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1653159298, now seen corresponding path program 1 times [2022-11-02 20:16:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:04,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220962362] [2022-11-02 20:16:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:04,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:16:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:04,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220962362] [2022-11-02 20:16:04,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220962362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:04,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:04,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:16:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332437657] [2022-11-02 20:16:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:04,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:16:04,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:16:04,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:16:04,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-02 20:16:04,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 287 transitions, 781 flow. Second operand has 8 states, 8 states have (on average 259.125) internal successors, (2073), 8 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:04,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:04,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-02 20:16:04,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:05,709 INFO L130 PetriNetUnfolder]: 356/1652 cut-off events. [2022-11-02 20:16:05,709 INFO L131 PetriNetUnfolder]: For 449/463 co-relation queries the response was YES. [2022-11-02 20:16:05,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1652 events. 356/1652 cut-off events. For 449/463 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11216 event pairs, 107 based on Foata normal form. 7/1413 useless extension candidates. Maximal degree in co-relation 2772. Up to 316 conditions per place. [2022-11-02 20:16:05,731 INFO L137 encePairwiseOnDemand]: 319/333 looper letters, 93 selfloop transitions, 11 changer transitions 15/329 dead transitions. [2022-11-02 20:16:05,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 329 transitions, 1127 flow [2022-11-02 20:16:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:16:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:16:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2655 transitions. [2022-11-02 20:16:05,741 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7972972972972973 [2022-11-02 20:16:05,741 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2655 transitions. [2022-11-02 20:16:05,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2655 transitions. [2022-11-02 20:16:05,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:05,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2655 transitions. [2022-11-02 20:16:05,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 265.5) internal successors, (2655), 10 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:05,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 333.0) internal successors, (3663), 11 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:05,763 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 333.0) internal successors, (3663), 11 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:05,764 INFO L175 Difference]: Start difference. First operand has 300 places, 287 transitions, 781 flow. Second operand 10 states and 2655 transitions. [2022-11-02 20:16:05,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 329 transitions, 1127 flow [2022-11-02 20:16:05,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 329 transitions, 1115 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-02 20:16:05,776 INFO L231 Difference]: Finished difference. Result has 307 places, 282 transitions, 752 flow [2022-11-02 20:16:05,777 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=752, PETRI_PLACES=307, PETRI_TRANSITIONS=282} [2022-11-02 20:16:05,777 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, 3 predicate places. [2022-11-02 20:16:05,778 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 282 transitions, 752 flow [2022-11-02 20:16:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 259.125) internal successors, (2073), 8 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:05,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:05,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:16:05,780 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash 389759699, now seen corresponding path program 1 times [2022-11-02 20:16:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:05,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961529649] [2022-11-02 20:16:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:06,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:06,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961529649] [2022-11-02 20:16:06,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961529649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:06,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:06,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:06,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786648606] [2022-11-02 20:16:06,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:06,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:06,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:06,594 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-02 20:16:06,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 282 transitions, 752 flow. Second operand has 6 states, 6 states have (on average 263.6666666666667) internal successors, (1582), 6 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:06,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:06,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-02 20:16:06,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:13,597 INFO L130 PetriNetUnfolder]: 11160/27306 cut-off events. [2022-11-02 20:16:13,597 INFO L131 PetriNetUnfolder]: For 1027/1031 co-relation queries the response was YES. [2022-11-02 20:16:13,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48881 conditions, 27306 events. 11160/27306 cut-off events. For 1027/1031 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 254353 event pairs, 2648 based on Foata normal form. 0/25253 useless extension candidates. Maximal degree in co-relation 48816. Up to 10134 conditions per place. [2022-11-02 20:16:14,064 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 133 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2022-11-02 20:16:14,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 363 transitions, 1202 flow [2022-11-02 20:16:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:14,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1699 transitions. [2022-11-02 20:16:14,073 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8503503503503503 [2022-11-02 20:16:14,073 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1699 transitions. [2022-11-02 20:16:14,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1699 transitions. [2022-11-02 20:16:14,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:14,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1699 transitions. [2022-11-02 20:16:14,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:14,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:14,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:14,086 INFO L175 Difference]: Start difference. First operand has 307 places, 282 transitions, 752 flow. Second operand 6 states and 1699 transitions. [2022-11-02 20:16:14,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 363 transitions, 1202 flow [2022-11-02 20:16:14,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 363 transitions, 1151 flow, removed 4 selfloop flow, removed 14 redundant places. [2022-11-02 20:16:14,109 INFO L231 Difference]: Finished difference. Result has 293 places, 281 transitions, 711 flow [2022-11-02 20:16:14,109 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=711, PETRI_PLACES=293, PETRI_TRANSITIONS=281} [2022-11-02 20:16:14,110 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-02 20:16:14,110 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 281 transitions, 711 flow [2022-11-02 20:16:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.6666666666667) internal successors, (1582), 6 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:14,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:14,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:14,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:16:14,112 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1293019816, now seen corresponding path program 1 times [2022-11-02 20:16:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:14,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123806969] [2022-11-02 20:16:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:14,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:14,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:14,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123806969] [2022-11-02 20:16:14,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123806969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:14,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:14,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:14,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618957555] [2022-11-02 20:16:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:14,817 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-02 20:16:14,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 281 transitions, 711 flow. Second operand has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:14,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:14,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-02 20:16:14,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:21,096 INFO L130 PetriNetUnfolder]: 10631/27427 cut-off events. [2022-11-02 20:16:21,096 INFO L131 PetriNetUnfolder]: For 2198/2198 co-relation queries the response was YES. [2022-11-02 20:16:21,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49686 conditions, 27427 events. 10631/27427 cut-off events. For 2198/2198 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 259848 event pairs, 2441 based on Foata normal form. 0/25850 useless extension candidates. Maximal degree in co-relation 49633. Up to 9714 conditions per place. [2022-11-02 20:16:21,379 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 142 selfloop transitions, 6 changer transitions 0/372 dead transitions. [2022-11-02 20:16:21,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 372 transitions, 1233 flow [2022-11-02 20:16:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1708 transitions. [2022-11-02 20:16:21,386 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8548548548548549 [2022-11-02 20:16:21,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1708 transitions. [2022-11-02 20:16:21,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1708 transitions. [2022-11-02 20:16:21,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:21,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1708 transitions. [2022-11-02 20:16:21,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:21,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:21,400 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:21,401 INFO L175 Difference]: Start difference. First operand has 293 places, 281 transitions, 711 flow. Second operand 6 states and 1708 transitions. [2022-11-02 20:16:21,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 372 transitions, 1233 flow [2022-11-02 20:16:21,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 372 transitions, 1189 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:16:21,426 INFO L231 Difference]: Finished difference. Result has 292 places, 280 transitions, 709 flow [2022-11-02 20:16:21,427 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=292, PETRI_TRANSITIONS=280} [2022-11-02 20:16:21,427 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -12 predicate places. [2022-11-02 20:16:21,428 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 280 transitions, 709 flow [2022-11-02 20:16:21,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:21,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:21,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:21,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:16:21,430 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 649623419, now seen corresponding path program 1 times [2022-11-02 20:16:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:21,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302294914] [2022-11-02 20:16:21,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:21,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:22,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:22,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302294914] [2022-11-02 20:16:22,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302294914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:22,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:22,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:22,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820775440] [2022-11-02 20:16:22,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:22,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:22,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:22,260 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-02 20:16:22,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 280 transitions, 709 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:22,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-02 20:16:22,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:29,634 INFO L130 PetriNetUnfolder]: 10109/30581 cut-off events. [2022-11-02 20:16:29,634 INFO L131 PetriNetUnfolder]: For 2454/2458 co-relation queries the response was YES. [2022-11-02 20:16:29,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52828 conditions, 30581 events. 10109/30581 cut-off events. For 2454/2458 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 317059 event pairs, 5900 based on Foata normal form. 0/29101 useless extension candidates. Maximal degree in co-relation 52775. Up to 9629 conditions per place. [2022-11-02 20:16:29,936 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 127 selfloop transitions, 6 changer transitions 0/357 dead transitions. [2022-11-02 20:16:29,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 357 transitions, 1171 flow [2022-11-02 20:16:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1693 transitions. [2022-11-02 20:16:29,944 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8473473473473474 [2022-11-02 20:16:29,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1693 transitions. [2022-11-02 20:16:29,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1693 transitions. [2022-11-02 20:16:29,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:29,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1693 transitions. [2022-11-02 20:16:29,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 282.1666666666667) internal successors, (1693), 6 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,960 INFO L175 Difference]: Start difference. First operand has 292 places, 280 transitions, 709 flow. Second operand 6 states and 1693 transitions. [2022-11-02 20:16:29,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 357 transitions, 1171 flow [2022-11-02 20:16:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 357 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:16:30,018 INFO L231 Difference]: Finished difference. Result has 291 places, 279 transitions, 707 flow [2022-11-02 20:16:30,018 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=707, PETRI_PLACES=291, PETRI_TRANSITIONS=279} [2022-11-02 20:16:30,019 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -13 predicate places. [2022-11-02 20:16:30,019 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 279 transitions, 707 flow [2022-11-02 20:16:30,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:30,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:30,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:16:30,021 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1336892848, now seen corresponding path program 1 times [2022-11-02 20:16:30,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:30,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101482970] [2022-11-02 20:16:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:30,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:31,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101482970] [2022-11-02 20:16:31,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101482970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:31,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:31,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481007528] [2022-11-02 20:16:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:31,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:16:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:16:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:16:31,062 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-02 20:16:31,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 279 transitions, 707 flow. Second operand has 6 states, 6 states have (on average 264.8333333333333) internal successors, (1589), 6 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:31,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-02 20:16:31,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:38,003 INFO L130 PetriNetUnfolder]: 9656/30298 cut-off events. [2022-11-02 20:16:38,004 INFO L131 PetriNetUnfolder]: For 2444/2444 co-relation queries the response was YES. [2022-11-02 20:16:38,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52021 conditions, 30298 events. 9656/30298 cut-off events. For 2444/2444 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 316444 event pairs, 5677 based on Foata normal form. 0/29260 useless extension candidates. Maximal degree in co-relation 51968. Up to 9306 conditions per place. [2022-11-02 20:16:38,246 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 136 selfloop transitions, 6 changer transitions 0/366 dead transitions. [2022-11-02 20:16:38,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 366 transitions, 1209 flow [2022-11-02 20:16:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:16:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1702 transitions. [2022-11-02 20:16:38,251 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2022-11-02 20:16:38,252 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1702 transitions. [2022-11-02 20:16:38,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1702 transitions. [2022-11-02 20:16:38,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:38,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1702 transitions. [2022-11-02 20:16:38,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 283.6666666666667) internal successors, (1702), 6 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,264 INFO L175 Difference]: Start difference. First operand has 291 places, 279 transitions, 707 flow. Second operand 6 states and 1702 transitions. [2022-11-02 20:16:38,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 366 transitions, 1209 flow [2022-11-02 20:16:38,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 366 transitions, 1165 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:16:38,330 INFO L231 Difference]: Finished difference. Result has 290 places, 278 transitions, 705 flow [2022-11-02 20:16:38,331 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=290, PETRI_TRANSITIONS=278} [2022-11-02 20:16:38,331 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -14 predicate places. [2022-11-02 20:16:38,332 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 278 transitions, 705 flow [2022-11-02 20:16:38,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.8333333333333) internal successors, (1589), 6 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:38,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:38,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:16:38,334 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2065093853, now seen corresponding path program 1 times [2022-11-02 20:16:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784124435] [2022-11-02 20:16:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:38,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784124435] [2022-11-02 20:16:38,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784124435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:38,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:38,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:38,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051926174] [2022-11-02 20:16:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:38,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:38,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:38,417 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 333 [2022-11-02 20:16:38,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 278 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:38,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 333 [2022-11-02 20:16:38,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:38,654 INFO L130 PetriNetUnfolder]: 56/879 cut-off events. [2022-11-02 20:16:38,654 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-02 20:16:38,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 879 events. 56/879 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3201 event pairs, 27 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1191. Up to 106 conditions per place. [2022-11-02 20:16:38,666 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 16 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2022-11-02 20:16:38,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 278 transitions, 742 flow [2022-11-02 20:16:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2022-11-02 20:16:38,670 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9079079079079079 [2022-11-02 20:16:38,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2022-11-02 20:16:38,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2022-11-02 20:16:38,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:38,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2022-11-02 20:16:38,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,679 INFO L175 Difference]: Start difference. First operand has 290 places, 278 transitions, 705 flow. Second operand 3 states and 907 transitions. [2022-11-02 20:16:38,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 278 transitions, 742 flow [2022-11-02 20:16:38,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 278 transitions, 730 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:16:38,689 INFO L231 Difference]: Finished difference. Result has 286 places, 277 transitions, 695 flow [2022-11-02 20:16:38,689 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=286, PETRI_TRANSITIONS=277} [2022-11-02 20:16:38,690 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -18 predicate places. [2022-11-02 20:16:38,690 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 277 transitions, 695 flow [2022-11-02 20:16:38,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:38,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:38,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:16:38,692 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-02 20:16:38,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1820006648, now seen corresponding path program 1 times [2022-11-02 20:16:38,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560156032] [2022-11-02 20:16:38,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:16:38,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:38,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560156032] [2022-11-02 20:16:38,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560156032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:38,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:38,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:38,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476350863] [2022-11-02 20:16:38,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:38,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:38,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:38,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:38,785 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 333 [2022-11-02 20:16:38,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 277 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:38,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 333 [2022-11-02 20:16:38,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:39,037 INFO L130 PetriNetUnfolder]: 119/1033 cut-off events. [2022-11-02 20:16:39,037 INFO L131 PetriNetUnfolder]: For 129/131 co-relation queries the response was YES. [2022-11-02 20:16:39,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1033 events. 119/1033 cut-off events. For 129/131 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5439 event pairs, 56 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1408. Up to 178 conditions per place. [2022-11-02 20:16:39,043 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 0 selfloop transitions, 0 changer transitions 277/277 dead transitions. [2022-11-02 20:16:39,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 277 transitions, 732 flow [2022-11-02 20:16:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2022-11-02 20:16:39,046 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9079079079079079 [2022-11-02 20:16:39,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2022-11-02 20:16:39,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2022-11-02 20:16:39,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:39,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2022-11-02 20:16:39,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:39,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:39,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:39,053 INFO L175 Difference]: Start difference. First operand has 286 places, 277 transitions, 695 flow. Second operand 3 states and 907 transitions. [2022-11-02 20:16:39,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 277 transitions, 732 flow [2022-11-02 20:16:39,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 277 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:39,060 INFO L231 Difference]: Finished difference. Result has 285 places, 0 transitions, 0 flow [2022-11-02 20:16:39,060 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=285, PETRI_TRANSITIONS=0} [2022-11-02 20:16:39,061 INFO L287 CegarLoopForPetriNet]: 304 programPoint places, -19 predicate places. [2022-11-02 20:16:39,061 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 0 transitions, 0 flow [2022-11-02 20:16:39,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:39,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (61 of 62 remaining) [2022-11-02 20:16:39,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2022-11-02 20:16:39,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2022-11-02 20:16:39,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2022-11-02 20:16:39,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2022-11-02 20:16:39,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2022-11-02 20:16:39,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 62 remaining) [2022-11-02 20:16:39,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2022-11-02 20:16:39,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2022-11-02 20:16:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2022-11-02 20:16:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2022-11-02 20:16:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2022-11-02 20:16:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2022-11-02 20:16:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2022-11-02 20:16:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2022-11-02 20:16:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2022-11-02 20:16:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2022-11-02 20:16:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2022-11-02 20:16:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2022-11-02 20:16:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2022-11-02 20:16:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2022-11-02 20:16:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2022-11-02 20:16:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2022-11-02 20:16:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2022-11-02 20:16:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2022-11-02 20:16:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2022-11-02 20:16:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2022-11-02 20:16:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2022-11-02 20:16:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2022-11-02 20:16:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2022-11-02 20:16:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2022-11-02 20:16:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2022-11-02 20:16:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2022-11-02 20:16:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2022-11-02 20:16:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2022-11-02 20:16:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2022-11-02 20:16:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2022-11-02 20:16:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 62 remaining) [2022-11-02 20:16:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2022-11-02 20:16:39,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2022-11-02 20:16:39,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2022-11-02 20:16:39,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2022-11-02 20:16:39,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2022-11-02 20:16:39,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2022-11-02 20:16:39,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2022-11-02 20:16:39,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2022-11-02 20:16:39,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2022-11-02 20:16:39,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2022-11-02 20:16:39,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2022-11-02 20:16:39,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2022-11-02 20:16:39,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2022-11-02 20:16:39,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2022-11-02 20:16:39,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2022-11-02 20:16:39,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2022-11-02 20:16:39,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2022-11-02 20:16:39,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2022-11-02 20:16:39,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2022-11-02 20:16:39,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2022-11-02 20:16:39,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2022-11-02 20:16:39,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2022-11-02 20:16:39,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2022-11-02 20:16:39,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2022-11-02 20:16:39,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:16:39,081 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-02 20:16:39,089 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:16:39,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:39,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:39 BasicIcfg [2022-11-02 20:16:39,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:39,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:39,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:39,097 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:39,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:41" (3/4) ... [2022-11-02 20:16:39,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:16:39,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 20:16:39,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 20:16:39,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-02 20:16:39,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:16:39,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:16:39,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:16:39,208 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:16:39,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:39,209 INFO L158 Benchmark]: Toolchain (without parser) took 59554.20ms. Allocated memory was 109.1MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 71.3MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-02 20:16:39,209 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:39,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.15ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 81.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:16:39,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.13ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:16:39,210 INFO L158 Benchmark]: Boogie Preprocessor took 77.00ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 77.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:39,211 INFO L158 Benchmark]: RCFGBuilder took 1101.22ms. Allocated memory is still 109.1MB. Free memory was 77.1MB in the beginning and 50.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:39,211 INFO L158 Benchmark]: TraceAbstraction took 57683.54ms. Allocated memory was 109.1MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 50.0MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2022-11-02 20:16:39,211 INFO L158 Benchmark]: Witness Printer took 111.53ms. Allocated memory is still 12.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:39,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.15ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 81.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.13ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.00ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 77.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1101.22ms. Allocated memory is still 109.1MB. Free memory was 77.1MB in the beginning and 50.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 57683.54ms. Allocated memory was 109.1MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 50.0MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 111.53ms. Allocated memory is still 12.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: 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 5 procedures, 445 locations, 62 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: 57.4s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 48.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 938 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 938 mSDsluCounter, 920 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 518 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2882 IncrementalHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 556 mSDtfsCounter, 2882 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=787occurred in iteration=16, InterpolantAutomatonStates: 130, 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, 0.4s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 2897 NumberOfCodeBlocks, 2897 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2872 ConstructedInterpolants, 0 QuantifiedInterpolants, 5511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 14/14 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:16:39,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a71109ad-f93b-4e76-abca-98615af8ff99/bin/uautomizer-Dbtcem3rbc/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