./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-7-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-7-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1723883ecbdb95d71ea3ec2c746fab3b92c3a077cf232c2150d4112b37a05f98 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:30:14,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:30:14,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:30:14,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:30:14,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:30:14,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:30:14,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:30:14,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:30:14,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:30:14,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:30:14,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:30:14,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:30:14,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:30:14,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:30:14,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:30:14,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:30:14,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:30:14,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:30:14,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:30:14,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:30:14,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:30:14,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:30:14,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:30:14,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:30:14,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:30:14,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:30:14,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:30:14,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:30:14,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:30:14,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:30:14,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:30:14,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:30:14,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:30:14,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:30:14,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:30:14,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:30:14,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:30:14,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:30:14,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:30:14,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:30:14,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:30:14,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:30:14,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:30:14,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:30:14,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:30:14,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:30:14,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:30:14,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:30:14,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:30:14,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:30:14,162 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:30:14,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:30:14,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:30:14,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:30:14,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:30:14,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:30:14,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:30:14,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:30:14,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:30:14,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:30:14,165 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:30:14,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:30:14,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:30:14,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:30:14,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:30:14,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:30:14,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:30:14,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:30:14,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:30:14,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:30:14,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:30:14,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:30:14,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:30:14,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:30:14,168 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:30:14,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:30:14,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:30:14,169 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_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1723883ecbdb95d71ea3ec2c746fab3b92c3a077cf232c2150d4112b37a05f98 [2022-11-20 12:30:14,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:30:14,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:30:14,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:30:14,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:30:14,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:30:14,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/fib_safe-7-racy.i [2022-11-20 12:30:17,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:30:17,846 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:30:17,860 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/sv-benchmarks/c/pthread/fib_safe-7-racy.i [2022-11-20 12:30:17,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/data/5ef45f92e/7b89c91e7de84702b95bb2b287f967b1/FLAGd1930306c [2022-11-20 12:30:17,886 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/data/5ef45f92e/7b89c91e7de84702b95bb2b287f967b1 [2022-11-20 12:30:17,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:30:17,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:30:17,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:30:17,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:30:17,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:30:17,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:17" (1/1) ... [2022-11-20 12:30:17,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5399638a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:17, skipping insertion in model container [2022-11-20 12:30:17,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:30:17" (1/1) ... [2022-11-20 12:30:17,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:30:17,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:30:18,351 WARN L237 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_6d0928f8-1128-4530-b64f-5daf88859437/sv-benchmarks/c/pthread/fib_safe-7-racy.i[30813,30826] [2022-11-20 12:30:18,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:30:18,372 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:30:18,436 WARN L237 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_6d0928f8-1128-4530-b64f-5daf88859437/sv-benchmarks/c/pthread/fib_safe-7-racy.i[30813,30826] [2022-11-20 12:30:18,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:30:18,476 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:30:18,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18 WrapperNode [2022-11-20 12:30:18,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:30:18,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:30:18,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:30:18,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:30:18,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,549 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-20 12:30:18,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:30:18,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:30:18,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:30:18,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:30:18,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:30:18,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:30:18,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:30:18,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:30:18,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (1/1) ... [2022-11-20 12:30:18,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:30:18,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:18,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:30:18,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:30:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-20 12:30:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-20 12:30:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-20 12:30:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-20 12:30:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:30:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:30:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:30:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:30:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:30:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:30:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:30:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:30:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:30:18,708 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:30:18,838 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:30:18,840 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:30:19,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:30:19,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:30:19,351 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:30:19,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:30:19 BoogieIcfgContainer [2022-11-20 12:30:19,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:30:19,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:30:19,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:30:19,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:30:19,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:30:17" (1/3) ... [2022-11-20 12:30:19,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58587860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:30:19, skipping insertion in model container [2022-11-20 12:30:19,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:30:18" (2/3) ... [2022-11-20 12:30:19,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58587860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:30:19, skipping insertion in model container [2022-11-20 12:30:19,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:30:19" (3/3) ... [2022-11-20 12:30:19,366 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-7-racy.i [2022-11-20 12:30:19,375 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:30:19,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:30:19,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-20 12:30:19,387 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:30:19,477 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:30:19,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-20 12:30:19,695 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-20 12:30:19,696 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:19,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-20 12:30:19,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-20 12:30:19,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-20 12:30:19,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:30:19,772 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;@7b02baf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:30:19,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-20 12:30:19,786 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-20 12:30:19,786 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:19,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:19,787 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:19,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:19,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:19,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1806377174, now seen corresponding path program 1 times [2022-11-20 12:30:19,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:19,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095232658] [2022-11-20 12:30:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:20,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095232658] [2022-11-20 12:30:20,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095232658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:20,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:20,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:30:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909471965] [2022-11-20 12:30:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:20,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:30:20,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:20,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:30:20,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:30:20,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 193 [2022-11-20 12:30:20,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 191 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:20,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 193 [2022-11-20 12:30:20,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:20,206 INFO L130 PetriNetUnfolder]: 9/295 cut-off events. [2022-11-20 12:30:20,206 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:30:20,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 295 events. 9/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 939 event pairs, 2 based on Foata normal form. 10/255 useless extension candidates. Maximal degree in co-relation 274. Up to 11 conditions per place. [2022-11-20 12:30:20,213 INFO L137 encePairwiseOnDemand]: 181/193 looper letters, 6 selfloop transitions, 0 changer transitions 0/178 dead transitions. [2022-11-20 12:30:20,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 374 flow [2022-11-20 12:30:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:30:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:30:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2022-11-20 12:30:20,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9481865284974094 [2022-11-20 12:30:20,229 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2022-11-20 12:30:20,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2022-11-20 12:30:20,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:20,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2022-11-20 12:30:20,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,248 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,250 INFO L175 Difference]: Start difference. First operand has 190 places, 191 transitions, 388 flow. Second operand 2 states and 366 transitions. [2022-11-20 12:30:20,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 374 flow [2022-11-20 12:30:20,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 178 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:20,261 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 360 flow [2022-11-20 12:30:20,263 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2022-11-20 12:30:20,271 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2022-11-20 12:30:20,272 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 360 flow [2022-11-20 12:30:20,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:20,273 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:20,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:30:20,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:20,274 INFO L85 PathProgramCache]: Analyzing trace with hash -929261081, now seen corresponding path program 1 times [2022-11-20 12:30:20,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:20,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46096126] [2022-11-20 12:30:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:20,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:20,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:20,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46096126] [2022-11-20 12:30:20,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46096126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:20,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:20,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:20,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82132723] [2022-11-20 12:30:20,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:20,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:20,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:20,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:20,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:20,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:30:20,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:20,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:30:20,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:20,520 INFO L130 PetriNetUnfolder]: 48/393 cut-off events. [2022-11-20 12:30:20,520 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:20,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 393 events. 48/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1813 event pairs, 14 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 511. Up to 77 conditions per place. [2022-11-20 12:30:20,532 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 19 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2022-11-20 12:30:20,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 179 transitions, 406 flow [2022-11-20 12:30:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2022-11-20 12:30:20,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670120898100173 [2022-11-20 12:30:20,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2022-11-20 12:30:20,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2022-11-20 12:30:20,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:20,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2022-11-20 12:30:20,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,542 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 360 flow. Second operand 3 states and 502 transitions. [2022-11-20 12:30:20,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 179 transitions, 406 flow [2022-11-20 12:30:20,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:30:20,546 INFO L231 Difference]: Finished difference. Result has 181 places, 177 transitions, 362 flow [2022-11-20 12:30:20,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=181, PETRI_TRANSITIONS=177} [2022-11-20 12:30:20,547 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -9 predicate places. [2022-11-20 12:30:20,548 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 177 transitions, 362 flow [2022-11-20 12:30:20,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,548 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:20,549 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:20,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:30:20,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1742837375, now seen corresponding path program 1 times [2022-11-20 12:30:20,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:20,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949704803] [2022-11-20 12:30:20,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:20,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:20,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:20,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949704803] [2022-11-20 12:30:20,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949704803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:20,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:20,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582203069] [2022-11-20 12:30:20,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:20,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:20,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:20,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:30:20,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 177 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:20,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:30:20,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:20,718 INFO L130 PetriNetUnfolder]: 34/261 cut-off events. [2022-11-20 12:30:20,719 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:30:20,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 261 events. 34/261 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 975 event pairs, 11 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 354. Up to 34 conditions per place. [2022-11-20 12:30:20,726 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-20 12:30:20,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 177 transitions, 398 flow [2022-11-20 12:30:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:20,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-20 12:30:20,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-20 12:30:20,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-20 12:30:20,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-20 12:30:20,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:20,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-20 12:30:20,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,739 INFO L175 Difference]: Start difference. First operand has 181 places, 177 transitions, 362 flow. Second operand 3 states and 505 transitions. [2022-11-20 12:30:20,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 177 transitions, 398 flow [2022-11-20 12:30:20,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 177 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:20,744 INFO L231 Difference]: Finished difference. Result has 179 places, 175 transitions, 358 flow [2022-11-20 12:30:20,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=179, PETRI_TRANSITIONS=175} [2022-11-20 12:30:20,745 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-20 12:30:20,745 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 175 transitions, 358 flow [2022-11-20 12:30:20,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:20,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:20,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:30:20,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash -418600324, now seen corresponding path program 1 times [2022-11-20 12:30:20,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:20,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871482487] [2022-11-20 12:30:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:20,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:20,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:20,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871482487] [2022-11-20 12:30:20,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871482487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:20,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:20,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:20,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625733914] [2022-11-20 12:30:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:20,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:20,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:20,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:30:20,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:20,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:30:20,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:20,898 INFO L130 PetriNetUnfolder]: 22/303 cut-off events. [2022-11-20 12:30:20,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:20,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 303 events. 22/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1161 event pairs, 13 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2022-11-20 12:30:20,904 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-20 12:30:20,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 175 transitions, 398 flow [2022-11-20 12:30:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2022-11-20 12:30:20,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8652849740932642 [2022-11-20 12:30:20,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2022-11-20 12:30:20,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2022-11-20 12:30:20,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:20,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2022-11-20 12:30:20,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,912 INFO L175 Difference]: Start difference. First operand has 179 places, 175 transitions, 358 flow. Second operand 3 states and 501 transitions. [2022-11-20 12:30:20,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 175 transitions, 398 flow [2022-11-20 12:30:20,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 175 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:20,916 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 356 flow [2022-11-20 12:30:20,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2022-11-20 12:30:20,918 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2022-11-20 12:30:20,918 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 356 flow [2022-11-20 12:30:20,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:20,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:20,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:20,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:30:20,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2063316520, now seen corresponding path program 1 times [2022-11-20 12:30:20,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:20,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042463030] [2022-11-20 12:30:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:20,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042463030] [2022-11-20 12:30:21,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042463030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553745944] [2022-11-20 12:30:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:30:21,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:30:21,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,118 INFO L130 PetriNetUnfolder]: 18/295 cut-off events. [2022-11-20 12:30:21,119 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:30:21,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 295 events. 18/295 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1099 event pairs, 6 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 342. Up to 23 conditions per place. [2022-11-20 12:30:21,124 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-20 12:30:21,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 386 flow [2022-11-20 12:30:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:30:21,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:30:21,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:30:21,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:30:21,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:30:21,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,133 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 356 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:30:21,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 386 flow [2022-11-20 12:30:21,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:21,138 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 352 flow [2022-11-20 12:30:21,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2022-11-20 12:30:21,143 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2022-11-20 12:30:21,143 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 352 flow [2022-11-20 12:30:21,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:21,144 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:21,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:30:21,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:21,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash 940500773, now seen corresponding path program 1 times [2022-11-20 12:30:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:21,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937083403] [2022-11-20 12:30:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:21,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937083403] [2022-11-20 12:30:21,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937083403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974516014] [2022-11-20 12:30:21,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-20 12:30:21,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-20 12:30:21,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,416 INFO L130 PetriNetUnfolder]: 69/506 cut-off events. [2022-11-20 12:30:21,416 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:21,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 506 events. 69/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2804 event pairs, 50 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 638. Up to 107 conditions per place. [2022-11-20 12:30:21,424 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 20 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-20 12:30:21,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 173 transitions, 398 flow [2022-11-20 12:30:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-20 12:30:21,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8635578583765112 [2022-11-20 12:30:21,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-20 12:30:21,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-20 12:30:21,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-20 12:30:21,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,431 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 352 flow. Second operand 3 states and 500 transitions. [2022-11-20 12:30:21,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 173 transitions, 398 flow [2022-11-20 12:30:21,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 173 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:21,436 INFO L231 Difference]: Finished difference. Result has 175 places, 171 transitions, 350 flow [2022-11-20 12:30:21,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=171} [2022-11-20 12:30:21,439 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -15 predicate places. [2022-11-20 12:30:21,439 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 171 transitions, 350 flow [2022-11-20 12:30:21,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:21,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:21,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:30:21,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:21,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash 193157200, now seen corresponding path program 1 times [2022-11-20 12:30:21,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:21,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979804205] [2022-11-20 12:30:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:21,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979804205] [2022-11-20 12:30:21,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979804205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849453180] [2022-11-20 12:30:21,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:30:21,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:30:21,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,622 INFO L130 PetriNetUnfolder]: 26/228 cut-off events. [2022-11-20 12:30:21,622 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:21,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 228 events. 26/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 802 event pairs, 16 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 312. Up to 49 conditions per place. [2022-11-20 12:30:21,626 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2022-11-20 12:30:21,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 172 transitions, 390 flow [2022-11-20 12:30:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:21,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2022-11-20 12:30:21,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618307426597582 [2022-11-20 12:30:21,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2022-11-20 12:30:21,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2022-11-20 12:30:21,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2022-11-20 12:30:21,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,635 INFO L175 Difference]: Start difference. First operand has 175 places, 171 transitions, 350 flow. Second operand 3 states and 499 transitions. [2022-11-20 12:30:21,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 172 transitions, 390 flow [2022-11-20 12:30:21,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 172 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:21,639 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 348 flow [2022-11-20 12:30:21,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2022-11-20 12:30:21,640 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -16 predicate places. [2022-11-20 12:30:21,640 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 348 flow [2022-11-20 12:30:21,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:21,641 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:21,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:30:21,641 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:21,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1907786638, now seen corresponding path program 1 times [2022-11-20 12:30:21,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:21,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057624323] [2022-11-20 12:30:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:21,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057624323] [2022-11-20 12:30:21,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057624323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290948616] [2022-11-20 12:30:21,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:30:21,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:30:21,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,771 INFO L130 PetriNetUnfolder]: 49/471 cut-off events. [2022-11-20 12:30:21,771 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:21,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 471 events. 49/471 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2379 event pairs, 22 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 561. Up to 51 conditions per place. [2022-11-20 12:30:21,776 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-11-20 12:30:21,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 382 flow [2022-11-20 12:30:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:21,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-20 12:30:21,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-20 12:30:21,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-20 12:30:21,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-20 12:30:21,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-20 12:30:21,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,782 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 348 flow. Second operand 3 states and 505 transitions. [2022-11-20 12:30:21,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 382 flow [2022-11-20 12:30:21,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:21,786 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 344 flow [2022-11-20 12:30:21,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2022-11-20 12:30:21,787 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2022-11-20 12:30:21,787 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 344 flow [2022-11-20 12:30:21,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:21,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:21,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:30:21,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:21,788 INFO L85 PathProgramCache]: Analyzing trace with hash 430848325, now seen corresponding path program 1 times [2022-11-20 12:30:21,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109519436] [2022-11-20 12:30:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:21,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109519436] [2022-11-20 12:30:21,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109519436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866534387] [2022-11-20 12:30:21,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,835 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:30:21,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:30:21,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,914 INFO L130 PetriNetUnfolder]: 49/491 cut-off events. [2022-11-20 12:30:21,915 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:21,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 491 events. 49/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2325 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 581. Up to 41 conditions per place. [2022-11-20 12:30:21,920 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2022-11-20 12:30:21,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 374 flow [2022-11-20 12:30:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:30:21,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:30:21,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:30:21,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:30:21,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:30:21,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,926 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 344 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:30:21,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 374 flow [2022-11-20 12:30:21,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 168 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:21,929 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 342 flow [2022-11-20 12:30:21,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2022-11-20 12:30:21,930 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-20 12:30:21,930 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 342 flow [2022-11-20 12:30:21,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:21,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:21,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:30:21,931 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:21,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1728395284, now seen corresponding path program 1 times [2022-11-20 12:30:21,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:21,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312773745] [2022-11-20 12:30:21,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:21,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:21,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:21,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312773745] [2022-11-20 12:30:21,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312773745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:21,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:21,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:21,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484618967] [2022-11-20 12:30:21,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:21,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:21,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:21,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:30:21,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:21,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:30:21,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,056 INFO L130 PetriNetUnfolder]: 47/481 cut-off events. [2022-11-20 12:30:22,056 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:22,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 481 events. 47/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1916 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 573. Up to 41 conditions per place. [2022-11-20 12:30:22,062 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 12:30:22,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 372 flow [2022-11-20 12:30:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:30:22,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:30:22,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,069 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 342 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:30:22,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 372 flow [2022-11-20 12:30:22,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:22,073 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 336 flow [2022-11-20 12:30:22,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-20 12:30:22,074 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-20 12:30:22,074 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 336 flow [2022-11-20 12:30:22,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,075 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:30:22,075 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash -215926811, now seen corresponding path program 1 times [2022-11-20 12:30:22,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663653778] [2022-11-20 12:30:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663653778] [2022-11-20 12:30:22,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663653778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543765910] [2022-11-20 12:30:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:30:22,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:30:22,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,179 INFO L130 PetriNetUnfolder]: 18/278 cut-off events. [2022-11-20 12:30:22,180 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:22,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 278 events. 18/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 970 event pairs, 9 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 327. Up to 34 conditions per place. [2022-11-20 12:30:22,184 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:30:22,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 370 flow [2022-11-20 12:30:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-11-20 12:30:22,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8601036269430051 [2022-11-20 12:30:22,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-11-20 12:30:22,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-11-20 12:30:22,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-11-20 12:30:22,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,190 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 336 flow. Second operand 3 states and 498 transitions. [2022-11-20 12:30:22,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 370 flow [2022-11-20 12:30:22,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:22,194 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 334 flow [2022-11-20 12:30:22,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-20 12:30:22,195 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:30:22,195 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 334 flow [2022-11-20 12:30:22,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:30:22,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1939820954, now seen corresponding path program 1 times [2022-11-20 12:30:22,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513886485] [2022-11-20 12:30:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513886485] [2022-11-20 12:30:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513886485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:22,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739158254] [2022-11-20 12:30:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:30:22,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:30:22,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,344 INFO L130 PetriNetUnfolder]: 45/451 cut-off events. [2022-11-20 12:30:22,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:22,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 451 events. 45/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2261 event pairs, 26 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 535. Up to 59 conditions per place. [2022-11-20 12:30:22,348 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:30:22,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 368 flow [2022-11-20 12:30:22,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:30:22,351 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:30:22,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:30:22,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,355 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 334 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:30:22,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 368 flow [2022-11-20 12:30:22,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:22,359 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 332 flow [2022-11-20 12:30:22,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-11-20 12:30:22,360 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-20 12:30:22,360 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 332 flow [2022-11-20 12:30:22,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,360 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:30:22,361 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1602304185, now seen corresponding path program 1 times [2022-11-20 12:30:22,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104678671] [2022-11-20 12:30:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104678671] [2022-11-20 12:30:22,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104678671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:22,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549507082] [2022-11-20 12:30:22,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,419 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-20 12:30:22,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-20 12:30:22,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,519 INFO L130 PetriNetUnfolder]: 41/577 cut-off events. [2022-11-20 12:30:22,519 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:22,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 577 events. 41/577 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2593 event pairs, 14 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 670. Up to 37 conditions per place. [2022-11-20 12:30:22,525 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-20 12:30:22,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 167 transitions, 376 flow [2022-11-20 12:30:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-20 12:30:22,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-20 12:30:22,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-20 12:30:22,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-20 12:30:22,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-20 12:30:22,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,532 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 332 flow. Second operand 3 states and 522 transitions. [2022-11-20 12:30:22,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 167 transitions, 376 flow [2022-11-20 12:30:22,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 167 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:22,536 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 340 flow [2022-11-20 12:30:22,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-20 12:30:22,537 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:30:22,537 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 340 flow [2022-11-20 12:30:22,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,538 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:30:22,538 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,539 INFO L85 PathProgramCache]: Analyzing trace with hash -596713196, now seen corresponding path program 1 times [2022-11-20 12:30:22,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689561786] [2022-11-20 12:30:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689561786] [2022-11-20 12:30:22,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689561786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:22,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322977879] [2022-11-20 12:30:22,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,579 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:30:22,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:30:22,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,682 INFO L130 PetriNetUnfolder]: 73/603 cut-off events. [2022-11-20 12:30:22,682 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:30:22,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 603 events. 73/603 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2986 event pairs, 46 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 756. Up to 99 conditions per place. [2022-11-20 12:30:22,688 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:30:22,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-20 12:30:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:30:22,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:30:22,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:30:22,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:30:22,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:30:22,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,694 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 340 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:30:22,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-20 12:30:22,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:30:22,697 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 340 flow [2022-11-20 12:30:22,698 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-20 12:30:22,698 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:30:22,698 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 340 flow [2022-11-20 12:30:22,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:30:22,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash 187265853, now seen corresponding path program 1 times [2022-11-20 12:30:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440276829] [2022-11-20 12:30:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440276829] [2022-11-20 12:30:22,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440276829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951159172] [2022-11-20 12:30:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-20 12:30:22,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-20 12:30:22,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:22,841 INFO L130 PetriNetUnfolder]: 61/583 cut-off events. [2022-11-20 12:30:22,841 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:22,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 583 events. 61/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2565 event pairs, 18 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 708. Up to 51 conditions per place. [2022-11-20 12:30:22,846 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:30:22,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 370 flow [2022-11-20 12:30:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:22,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2022-11-20 12:30:22,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8946459412780656 [2022-11-20 12:30:22,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2022-11-20 12:30:22,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2022-11-20 12:30:22,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:22,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2022-11-20 12:30:22,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,853 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 340 flow. Second operand 3 states and 518 transitions. [2022-11-20 12:30:22,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 370 flow [2022-11-20 12:30:22,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:22,857 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 344 flow [2022-11-20 12:30:22,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-20 12:30:22,858 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:30:22,858 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 344 flow [2022-11-20 12:30:22,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:30:22,859 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:22,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1490312150, now seen corresponding path program 1 times [2022-11-20 12:30:22,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59278369] [2022-11-20 12:30:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:22,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:22,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59278369] [2022-11-20 12:30:22,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59278369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:22,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:22,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221382155] [2022-11-20 12:30:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:22,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:22,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:22,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:22,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:22,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:30:22,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:22,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:30:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:23,011 INFO L130 PetriNetUnfolder]: 81/595 cut-off events. [2022-11-20 12:30:23,011 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 12:30:23,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 595 events. 81/595 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2997 event pairs, 54 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 780. Up to 115 conditions per place. [2022-11-20 12:30:23,017 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-20 12:30:23,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 380 flow [2022-11-20 12:30:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:23,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:30:23,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:30:23,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:30:23,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:30:23,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:23,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:30:23,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,024 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 344 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:30:23,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 380 flow [2022-11-20 12:30:23,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:30:23,028 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 344 flow [2022-11-20 12:30:23,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2022-11-20 12:30:23,029 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:30:23,029 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 344 flow [2022-11-20 12:30:23,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:23,030 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:23,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:30:23,030 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -91697017, now seen corresponding path program 1 times [2022-11-20 12:30:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:23,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011233922] [2022-11-20 12:30:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:23,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:23,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011233922] [2022-11-20 12:30:23,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011233922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:23,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:23,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:30:23,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134803047] [2022-11-20 12:30:23,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:23,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:23,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:23,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:23,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:23,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-20 12:30:23,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:23,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-20 12:30:23,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:23,183 INFO L130 PetriNetUnfolder]: 73/583 cut-off events. [2022-11-20 12:30:23,183 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:23,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 583 events. 73/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2779 event pairs, 54 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 764. Up to 115 conditions per place. [2022-11-20 12:30:23,189 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-11-20 12:30:23,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 384 flow [2022-11-20 12:30:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:23,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-11-20 12:30:23,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8583765112262521 [2022-11-20 12:30:23,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-11-20 12:30:23,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-11-20 12:30:23,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:23,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-11-20 12:30:23,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,196 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 344 flow. Second operand 3 states and 497 transitions. [2022-11-20 12:30:23,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 384 flow [2022-11-20 12:30:23,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:23,199 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 342 flow [2022-11-20 12:30:23,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-11-20 12:30:23,200 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-20 12:30:23,201 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 342 flow [2022-11-20 12:30:23,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:23,201 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:23,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:30:23,202 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:23,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1186677298, now seen corresponding path program 1 times [2022-11-20 12:30:23,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:23,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892858782] [2022-11-20 12:30:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:23,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:23,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:23,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892858782] [2022-11-20 12:30:23,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892858782] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:23,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053849717] [2022-11-20 12:30:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:23,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:23,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:23,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:23,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:30:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:23,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:30:23,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:30:23,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:23,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053849717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:23,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:30:23,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 12:30:23,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651267023] [2022-11-20 12:30:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:23,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:23,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:30:23,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 12:30:23,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:23,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 12:30:23,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:23,605 INFO L130 PetriNetUnfolder]: 36/496 cut-off events. [2022-11-20 12:30:23,605 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:30:23,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 496 events. 36/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1865 event pairs, 1 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 574. Up to 31 conditions per place. [2022-11-20 12:30:23,610 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 9 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-20 12:30:23,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-20 12:30:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-20 12:30:23,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-20 12:30:23,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-20 12:30:23,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-20 12:30:23,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:23,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-20 12:30:23,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,616 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 342 flow. Second operand 3 states and 527 transitions. [2022-11-20 12:30:23,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-20 12:30:23,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:23,620 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 372 flow [2022-11-20 12:30:23,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-20 12:30:23,621 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-20 12:30:23,621 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 372 flow [2022-11-20 12:30:23,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:23,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:23,622 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:23,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:23,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 12:30:23,829 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash -359410964, now seen corresponding path program 1 times [2022-11-20 12:30:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900700633] [2022-11-20 12:30:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:23,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:23,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900700633] [2022-11-20 12:30:23,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900700633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:23,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140422079] [2022-11-20 12:30:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:23,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:23,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:23,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:23,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:30:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:24,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:30:24,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:30:24,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:24,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140422079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:24,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:30:24,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 12:30:24,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528199611] [2022-11-20 12:30:24,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:24,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:24,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:24,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:24,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:30:24,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 12:30:24,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:24,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 12:30:24,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:24,248 INFO L130 PetriNetUnfolder]: 78/616 cut-off events. [2022-11-20 12:30:24,248 INFO L131 PetriNetUnfolder]: For 138/151 co-relation queries the response was YES. [2022-11-20 12:30:24,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 616 events. 78/616 cut-off events. For 138/151 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2825 event pairs, 0 based on Foata normal form. 8/579 useless extension candidates. Maximal degree in co-relation 880. Up to 59 conditions per place. [2022-11-20 12:30:24,255 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2022-11-20 12:30:24,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 171 transitions, 436 flow [2022-11-20 12:30:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:30:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-20 12:30:24,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-20 12:30:24,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-20 12:30:24,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-20 12:30:24,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:24,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-20 12:30:24,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,262 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 372 flow. Second operand 3 states and 528 transitions. [2022-11-20 12:30:24,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 171 transitions, 436 flow [2022-11-20 12:30:24,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:24,268 INFO L231 Difference]: Finished difference. Result has 170 places, 170 transitions, 422 flow [2022-11-20 12:30:24,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-11-20 12:30:24,269 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-20 12:30:24,270 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 422 flow [2022-11-20 12:30:24,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,270 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:24,270 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:24,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:24,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:24,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:24,482 INFO L85 PathProgramCache]: Analyzing trace with hash -598637021, now seen corresponding path program 1 times [2022-11-20 12:30:24,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:24,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970531997] [2022-11-20 12:30:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:24,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:24,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:24,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970531997] [2022-11-20 12:30:24,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970531997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:24,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233056753] [2022-11-20 12:30:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:24,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:24,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:24,624 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:24,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:30:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:24,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:30:24,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:24,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:30:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:24,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233056753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:30:24,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:30:24,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:30:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003096246] [2022-11-20 12:30:24,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:30:24,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:30:24,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:24,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:30:24,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:30:24,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:30:24,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 422 flow. Second operand has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:24,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:30:24,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:25,369 INFO L130 PetriNetUnfolder]: 232/1316 cut-off events. [2022-11-20 12:30:25,369 INFO L131 PetriNetUnfolder]: For 997/1025 co-relation queries the response was YES. [2022-11-20 12:30:25,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1316 events. 232/1316 cut-off events. For 997/1025 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6533 event pairs, 13 based on Foata normal form. 16/1275 useless extension candidates. Maximal degree in co-relation 2312. Up to 133 conditions per place. [2022-11-20 12:30:25,386 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 62 selfloop transitions, 9 changer transitions 0/220 dead transitions. [2022-11-20 12:30:25,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 220 transitions, 876 flow [2022-11-20 12:30:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:30:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:30:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1533 transitions. [2022-11-20 12:30:25,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2022-11-20 12:30:25,391 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1533 transitions. [2022-11-20 12:30:25,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1533 transitions. [2022-11-20 12:30:25,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:25,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1533 transitions. [2022-11-20 12:30:25,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 170.33333333333334) internal successors, (1533), 9 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:25,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:25,402 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:25,402 INFO L175 Difference]: Start difference. First operand has 170 places, 170 transitions, 422 flow. Second operand 9 states and 1533 transitions. [2022-11-20 12:30:25,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 220 transitions, 876 flow [2022-11-20 12:30:25,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 220 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:30:25,409 INFO L231 Difference]: Finished difference. Result has 179 places, 176 transitions, 460 flow [2022-11-20 12:30:25,409 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=460, PETRI_PLACES=179, PETRI_TRANSITIONS=176} [2022-11-20 12:30:25,410 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-20 12:30:25,410 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 176 transitions, 460 flow [2022-11-20 12:30:25,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:25,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:25,412 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:25,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:25,618 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:25,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:25,618 INFO L85 PathProgramCache]: Analyzing trace with hash 327415809, now seen corresponding path program 2 times [2022-11-20 12:30:25,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:25,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225657725] [2022-11-20 12:30:25,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:25,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:25,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225657725] [2022-11-20 12:30:25,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225657725] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389778730] [2022-11-20 12:30:25,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:30:25,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:25,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:25,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:30:26,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:30:26,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:30:26,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:30:26,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:26,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:30:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:26,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389778730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:30:26,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:30:26,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:30:26,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242208907] [2022-11-20 12:30:26,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:30:26,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:30:26,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:30:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:30:26,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:30:26,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 176 transitions, 460 flow. Second operand has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:26,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:26,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:30:26,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:27,344 INFO L130 PetriNetUnfolder]: 392/2176 cut-off events. [2022-11-20 12:30:27,345 INFO L131 PetriNetUnfolder]: For 1508/1536 co-relation queries the response was YES. [2022-11-20 12:30:27,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 2176 events. 392/2176 cut-off events. For 1508/1536 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10625 event pairs, 13 based on Foata normal form. 26/2143 useless extension candidates. Maximal degree in co-relation 3882. Up to 213 conditions per place. [2022-11-20 12:30:27,370 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 138 selfloop transitions, 21 changer transitions 0/308 dead transitions. [2022-11-20 12:30:27,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 308 transitions, 1558 flow [2022-11-20 12:30:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:30:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:30:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3567 transitions. [2022-11-20 12:30:27,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8800888230940045 [2022-11-20 12:30:27,378 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3567 transitions. [2022-11-20 12:30:27,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3567 transitions. [2022-11-20 12:30:27,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:27,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3567 transitions. [2022-11-20 12:30:27,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 169.85714285714286) internal successors, (3567), 21 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,401 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,401 INFO L175 Difference]: Start difference. First operand has 179 places, 176 transitions, 460 flow. Second operand 21 states and 3567 transitions. [2022-11-20 12:30:27,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 308 transitions, 1558 flow [2022-11-20 12:30:27,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 308 transitions, 1544 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-20 12:30:27,410 INFO L231 Difference]: Finished difference. Result has 203 places, 189 transitions, 584 flow [2022-11-20 12:30:27,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=584, PETRI_PLACES=203, PETRI_TRANSITIONS=189} [2022-11-20 12:30:27,411 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 13 predicate places. [2022-11-20 12:30:27,411 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 189 transitions, 584 flow [2022-11-20 12:30:27,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:27,413 INFO L209 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:27,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:27,619 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1096529341, now seen corresponding path program 3 times [2022-11-20 12:30:27,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:27,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922473763] [2022-11-20 12:30:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:27,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:28,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:28,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922473763] [2022-11-20 12:30:28,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922473763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:28,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65964576] [2022-11-20 12:30:28,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:30:28,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:28,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:28,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:30:28,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-20 12:30:28,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:30:28,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:30:28,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:28,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:30:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:29,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65964576] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:30:29,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:30:29,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 12:30:29,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823421948] [2022-11-20 12:30:29,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:30:29,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 12:30:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 12:30:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 12:30:29,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:30:29,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 189 transitions, 584 flow. Second operand has 34 states, 34 states have (on average 168.08823529411765) internal successors, (5715), 34 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:29,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:29,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:30:29,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:31,913 INFO L130 PetriNetUnfolder]: 712/3896 cut-off events. [2022-11-20 12:30:31,914 INFO L131 PetriNetUnfolder]: For 4546/4574 co-relation queries the response was YES. [2022-11-20 12:30:31,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7443 conditions, 3896 events. 712/3896 cut-off events. For 4546/4574 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 18635 event pairs, 13 based on Foata normal form. 46/3883 useless extension candidates. Maximal degree in co-relation 7428. Up to 373 conditions per place. [2022-11-20 12:30:31,965 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 290 selfloop transitions, 45 changer transitions 0/484 dead transitions. [2022-11-20 12:30:31,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 484 transitions, 3090 flow [2022-11-20 12:30:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 12:30:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 12:30:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 7635 transitions. [2022-11-20 12:30:31,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-20 12:30:31,980 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 7635 transitions. [2022-11-20 12:30:31,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 7635 transitions. [2022-11-20 12:30:31,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:31,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 7635 transitions. [2022-11-20 12:30:32,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 169.66666666666666) internal successors, (7635), 45 states have internal predecessors, (7635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:32,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:32,023 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:32,023 INFO L175 Difference]: Start difference. First operand has 203 places, 189 transitions, 584 flow. Second operand 45 states and 7635 transitions. [2022-11-20 12:30:32,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 484 transitions, 3090 flow [2022-11-20 12:30:32,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 484 transitions, 3050 flow, removed 14 selfloop flow, removed 6 redundant places. [2022-11-20 12:30:32,039 INFO L231 Difference]: Finished difference. Result has 250 places, 214 transitions, 862 flow [2022-11-20 12:30:32,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=862, PETRI_PLACES=250, PETRI_TRANSITIONS=214} [2022-11-20 12:30:32,040 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 60 predicate places. [2022-11-20 12:30:32,040 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 214 transitions, 862 flow [2022-11-20 12:30:32,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 168.08823529411765) internal successors, (5715), 34 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:32,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:32,042 INFO L209 CegarLoopForPetriNet]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:32,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:32,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:32,249 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1622679613, now seen corresponding path program 4 times [2022-11-20 12:30:32,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:32,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326796673] [2022-11-20 12:30:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:34,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:34,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326796673] [2022-11-20 12:30:34,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326796673] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:34,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873163499] [2022-11-20 12:30:34,294 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:30:34,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:34,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:34,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:34,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:30:34,530 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:30:34,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:30:34,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 12:30:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:35,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:30:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:36,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873163499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:30:36,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:30:36,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 35 [2022-11-20 12:30:36,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017218809] [2022-11-20 12:30:36,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:30:36,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 12:30:36,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:36,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 12:30:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 12:30:36,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:30:36,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 214 transitions, 862 flow. Second operand has 35 states, 35 states have (on average 168.0857142857143) internal successors, (5883), 35 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:36,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:36,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:30:36,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:38,869 INFO L130 PetriNetUnfolder]: 752/4111 cut-off events. [2022-11-20 12:30:38,869 INFO L131 PetriNetUnfolder]: For 5345/5373 co-relation queries the response was YES. [2022-11-20 12:30:38,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 4111 events. 752/4111 cut-off events. For 5345/5373 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 19673 event pairs, 13 based on Foata normal form. 11/4063 useless extension candidates. Maximal degree in co-relation 8139. Up to 393 conditions per place. [2022-11-20 12:30:38,920 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 309 selfloop transitions, 48 changer transitions 0/506 dead transitions. [2022-11-20 12:30:38,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 506 transitions, 3390 flow [2022-11-20 12:30:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 12:30:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-11-20 12:30:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 8136 transitions. [2022-11-20 12:30:38,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8782383419689119 [2022-11-20 12:30:38,935 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 8136 transitions. [2022-11-20 12:30:38,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 8136 transitions. [2022-11-20 12:30:38,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:38,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 8136 transitions. [2022-11-20 12:30:38,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 169.5) internal successors, (8136), 48 states have internal predecessors, (8136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:38,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:38,973 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:38,974 INFO L175 Difference]: Start difference. First operand has 250 places, 214 transitions, 862 flow. Second operand 48 states and 8136 transitions. [2022-11-20 12:30:38,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 506 transitions, 3390 flow [2022-11-20 12:30:38,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 506 transitions, 3332 flow, removed 11 selfloop flow, removed 18 redundant places. [2022-11-20 12:30:38,998 INFO L231 Difference]: Finished difference. Result has 283 places, 218 transitions, 960 flow [2022-11-20 12:30:38,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=960, PETRI_PLACES=283, PETRI_TRANSITIONS=218} [2022-11-20 12:30:38,999 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 93 predicate places. [2022-11-20 12:30:39,000 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 218 transitions, 960 flow [2022-11-20 12:30:39,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 168.0857142857143) internal successors, (5883), 35 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:39,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:39,002 INFO L209 CegarLoopForPetriNet]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:39,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:39,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 12:30:39,209 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:30:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash 993345884, now seen corresponding path program 5 times [2022-11-20 12:30:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:39,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210119734] [2022-11-20 12:30:39,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:39,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:30:39,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:30:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:30:39,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:30:39,828 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:30:39,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-20 12:30:39,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-20 12:30:39,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-20 12:30:39,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-20 12:30:39,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-20 12:30:39,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-20 12:30:39,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-20 12:30:39,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-20 12:30:39,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-20 12:30:39,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-20 12:30:39,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-20 12:30:39,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-20 12:30:39,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-20 12:30:39,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-20 12:30:39,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-20 12:30:39,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-20 12:30:39,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-20 12:30:39,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-20 12:30:39,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-20 12:30:39,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-20 12:30:39,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-20 12:30:39,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-20 12:30:39,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-20 12:30:39,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-20 12:30:39,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-20 12:30:39,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-20 12:30:39,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-20 12:30:39,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-20 12:30:39,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-20 12:30:39,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-20 12:30:39,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-20 12:30:39,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-20 12:30:39,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-20 12:30:39,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-20 12:30:39,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-20 12:30:39,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-20 12:30:39,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 12:30:39,844 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:39,856 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:30:39,856 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:30:40,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:30:40 BasicIcfg [2022-11-20 12:30:40,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:30:40,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:30:40,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:30:40,188 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:30:40,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:30:19" (3/4) ... [2022-11-20 12:30:40,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:30:40,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:30:40,192 INFO L158 Benchmark]: Toolchain (without parser) took 22302.17ms. Allocated memory was 155.2MB in the beginning and 591.4MB in the end (delta: 436.2MB). Free memory was 122.4MB in the beginning and 379.9MB in the end (delta: -257.5MB). Peak memory consumption was 181.9MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,192 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:30:40,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.71ms. Allocated memory is still 155.2MB. Free memory was 122.0MB in the beginning and 102.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.55ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,193 INFO L158 Benchmark]: Boogie Preprocessor took 61.63ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,193 INFO L158 Benchmark]: RCFGBuilder took 741.43ms. Allocated memory is still 155.2MB. Free memory was 98.6MB in the beginning and 77.3MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,194 INFO L158 Benchmark]: TraceAbstraction took 20830.59ms. Allocated memory was 155.2MB in the beginning and 591.4MB in the end (delta: 436.2MB). Free memory was 76.9MB in the beginning and 379.9MB in the end (delta: -303.0MB). Peak memory consumption was 381.1MB. Max. memory is 16.1GB. [2022-11-20 12:30:40,194 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 591.4MB. Free memory is still 379.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:30:40,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.71ms. Allocated memory is still 155.2MB. Free memory was 122.0MB in the beginning and 102.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.55ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.63ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 741.43ms. Allocated memory is still 155.2MB. Free memory was 98.6MB in the beginning and 77.3MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20830.59ms. Allocated memory was 155.2MB in the beginning and 591.4MB in the end (delta: 436.2MB). Free memory was 76.9MB in the beginning and 379.9MB in the end (delta: -303.0MB). Peak memory consumption was 381.1MB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 591.4MB. Free memory is still 379.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; VAL [i=0, j=0] [L686] 0 int p, q; VAL [i=0, j=0, p=0, q=0] [L703] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L704] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L714] 0 pthread_t id1, id2; VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L716] 0 i = 1 VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L719] 0 j = 1 VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=1656, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=0, q=0, x=0] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=1, q=0, x=2] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=2, q=0, x=3] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=3, q=0, x=4] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=5, q=0, x=5] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=8, q=0, x=6] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=13, q=0, x=7] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=21, q=0, x=8] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=34, q=0, x=9] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=55, q=0, x=10] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=89, q=0, x=11] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=144, q=0, x=12] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=233, q=0, x=13] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=377, q=0, x=14] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=610, q=0, x=15] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] COND FALSE 0 !(x < 16) VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L711] 0 return prev; VAL [\result=987, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, fib()=987, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i <= correct VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] 1 p < 7 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] COND TRUE 1 p < 7 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L690] EXPR 1 i + j [L690] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=2, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i <= correct VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, i=2, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 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: 20.3s, OverallIterations: 24, TraceHistogramMax: 17, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1112 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1112 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 911 IncrementalHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 152 mSDtfsCounter, 911 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2756 GetRequests, 2538 SyntacticMatches, 31 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2620 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=960occurred in iteration=23, InterpolantAutomatonStates: 179, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 4322 NumberOfCodeBlocks, 4322 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 4852 ConstructedInterpolants, 0 QuantifiedInterpolants, 10696 SizeOfPredicates, 52 NumberOfNonLiveVariables, 2700 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 33 InterpolantComputations, 19 PerfectInterpolantSequences, 6/13791 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:30:40,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d0928f8-1128-4530-b64f-5daf88859437/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE