./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro --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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- 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-8393723 [2022-11-18 19:37:28,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:37:28,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:37:28,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:37:28,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:37:28,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:37:28,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:37:28,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:37:28,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:37:28,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:37:28,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:37:28,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:37:28,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:37:28,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:37:28,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:37:28,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:37:28,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:37:28,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:37:28,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:37:28,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:37:28,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:37:28,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:37:28,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:37:28,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:37:28,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:37:28,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:37:28,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:37:28,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:37:28,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:37:28,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:37:28,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:37:28,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:37:28,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:37:28,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:37:28,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:37:28,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:37:28,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:37:28,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:37:28,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:37:28,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:37:28,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:37:28,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:37:28,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:37:28,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:37:28,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:37:28,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:37:28,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:37:28,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:37:28,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:37:28,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:37:28,650 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:37:28,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:37:28,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:37:28,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:37:28,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:37:28,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:37:28,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:37:28,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:37:28,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:37:28,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:37:28,652 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:37:28,652 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:37:28,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:37:28,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:37:28,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:37:28,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:37:28,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:37:28,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:37:28,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:28,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:37:28,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:37:28,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:37:28,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:37:28,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:37:28,657 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:37:28,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:37:28,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:37:28,658 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_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2022-11-18 19:37:28,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:37:29,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:37:29,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:37:29,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:37:29,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:37:29,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2022-11-18 19:37:29,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/data/f4dac7ebe/466b64ec106d46e2aef932d2a0bf6da9/FLAG0f0da4679 [2022-11-18 19:37:29,835 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:37:29,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2022-11-18 19:37:29,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/data/f4dac7ebe/466b64ec106d46e2aef932d2a0bf6da9/FLAG0f0da4679 [2022-11-18 19:37:30,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/data/f4dac7ebe/466b64ec106d46e2aef932d2a0bf6da9 [2022-11-18 19:37:30,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:37:30,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:37:30,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:30,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:37:30,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:37:30,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:30,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e97f13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30, skipping insertion in model container [2022-11-18 19:37:30,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:30,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:37:30,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:37:30,713 WARN L234 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_5e268d90-b58c-45b6-8c53-e5919fd19334/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i[39758,39771] [2022-11-18 19:37:30,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:30,736 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:37:30,823 WARN L234 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_5e268d90-b58c-45b6-8c53-e5919fd19334/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i[39758,39771] [2022-11-18 19:37:30,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:30,896 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:37:30,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30 WrapperNode [2022-11-18 19:37:30,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:30,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:30,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:37:30,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:37:30,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:30,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:30,975 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 103 [2022-11-18 19:37:30,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:30,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:37:30,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:37:30,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:37:30,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:30,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,030 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:37:31,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:37:31,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:37:31,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:37:31,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (1/1) ... [2022-11-18 19:37:31,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:31,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:31,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:31,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:37:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:37:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:37:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:37:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:37:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:37:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:37:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:37:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:37:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:37:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:37:31,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:37:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:37:31,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:37:31,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:37:31,147 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:37:31,394 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:37:31,397 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:31,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:31,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:31,853 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 19:37:31,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:31 BoogieIcfgContainer [2022-11-18 19:37:31,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:31,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:37:31,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:37:31,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:37:31,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:37:30" (1/3) ... [2022-11-18 19:37:31,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462f8f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:31, skipping insertion in model container [2022-11-18 19:37:31,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:30" (2/3) ... [2022-11-18 19:37:31,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462f8f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:31, skipping insertion in model container [2022-11-18 19:37:31,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:31" (3/3) ... [2022-11-18 19:37:31,876 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2022-11-18 19:37:31,886 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:37:31,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:37:31,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-18 19:37:31,906 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:37:31,996 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:37:32,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 205 transitions, 426 flow [2022-11-18 19:37:32,215 INFO L130 PetriNetUnfolder]: 10/203 cut-off events. [2022-11-18 19:37:32,215 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:37:32,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 203 events. 10/203 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 342 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2022-11-18 19:37:32,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 205 transitions, 426 flow [2022-11-18 19:37:32,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 189 transitions, 390 flow [2022-11-18 19:37:32,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:37:32,274 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;@4a35b109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:37:32,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-18 19:37:32,328 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-18 19:37:32,328 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:37:32,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:32,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:32,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 259213754, now seen corresponding path program 1 times [2022-11-18 19:37:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:32,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004433102] [2022-11-18 19:37:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:32,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:32,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:32,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004433102] [2022-11-18 19:37:32,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004433102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:32,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:32,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701784910] [2022-11-18 19:37:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:32,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:32,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:32,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:32,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:32,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 205 [2022-11-18 19:37:32,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 189 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:32,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:32,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 205 [2022-11-18 19:37:32,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:33,262 INFO L130 PetriNetUnfolder]: 154/922 cut-off events. [2022-11-18 19:37:33,263 INFO L131 PetriNetUnfolder]: For 78/79 co-relation queries the response was YES. [2022-11-18 19:37:33,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 922 events. 154/922 cut-off events. For 78/79 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5382 event pairs, 99 based on Foata normal form. 36/781 useless extension candidates. Maximal degree in co-relation 1014. Up to 264 conditions per place. [2022-11-18 19:37:33,274 INFO L137 encePairwiseOnDemand]: 198/205 looper letters, 25 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2022-11-18 19:37:33,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 184 transitions, 434 flow [2022-11-18 19:37:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-11-18 19:37:33,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8861788617886179 [2022-11-18 19:37:33,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2022-11-18 19:37:33,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2022-11-18 19:37:33,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:33,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2022-11-18 19:37:33,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,312 INFO L175 Difference]: Start difference. First operand has 188 places, 189 transitions, 390 flow. Second operand 3 states and 545 transitions. [2022-11-18 19:37:33,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 184 transitions, 434 flow [2022-11-18 19:37:33,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 184 transitions, 426 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:37:33,322 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 376 flow [2022-11-18 19:37:33,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2022-11-18 19:37:33,329 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2022-11-18 19:37:33,329 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 376 flow [2022-11-18 19:37:33,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:33,330 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] [2022-11-18 19:37:33,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:37:33,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:33,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:33,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2060782563, now seen corresponding path program 1 times [2022-11-18 19:37:33,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:33,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988611783] [2022-11-18 19:37:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:33,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:33,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988611783] [2022-11-18 19:37:33,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988611783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:33,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:33,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:33,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783972165] [2022-11-18 19:37:33,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:33,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:33,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 205 [2022-11-18 19:37:33,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:33,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 205 [2022-11-18 19:37:33,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:33,552 INFO L130 PetriNetUnfolder]: 19/258 cut-off events. [2022-11-18 19:37:33,553 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 19:37:33,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 258 events. 19/258 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 769 event pairs, 12 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 255. Up to 48 conditions per place. [2022-11-18 19:37:33,556 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 21 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2022-11-18 19:37:33,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 183 transitions, 420 flow [2022-11-18 19:37:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2022-11-18 19:37:33,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878048780487805 [2022-11-18 19:37:33,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2022-11-18 19:37:33,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2022-11-18 19:37:33,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:33,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2022-11-18 19:37:33,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,565 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 376 flow. Second operand 3 states and 546 transitions. [2022-11-18 19:37:33,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 183 transitions, 420 flow [2022-11-18 19:37:33,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 183 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:33,571 INFO L231 Difference]: Finished difference. Result has 184 places, 183 transitions, 374 flow [2022-11-18 19:37:33,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=184, PETRI_TRANSITIONS=183} [2022-11-18 19:37:33,572 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -4 predicate places. [2022-11-18 19:37:33,572 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 183 transitions, 374 flow [2022-11-18 19:37:33,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:33,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:33,574 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] [2022-11-18 19:37:33,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:37:33,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:33,575 INFO L85 PathProgramCache]: Analyzing trace with hash 746102681, now seen corresponding path program 1 times [2022-11-18 19:37:33,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:33,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216198295] [2022-11-18 19:37:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:33,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:33,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216198295] [2022-11-18 19:37:33,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216198295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:33,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:33,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:33,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664517959] [2022-11-18 19:37:33,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:33,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:33,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:33,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:33,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:33,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 205 [2022-11-18 19:37:33,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 183 transitions, 374 flow. Second operand has 3 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) [2022-11-18 19:37:33,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:33,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 205 [2022-11-18 19:37:33,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:33,979 INFO L130 PetriNetUnfolder]: 157/1012 cut-off events. [2022-11-18 19:37:33,980 INFO L131 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2022-11-18 19:37:33,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 1012 events. 157/1012 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6302 event pairs, 37 based on Foata normal form. 1/858 useless extension candidates. Maximal degree in co-relation 1256. Up to 185 conditions per place. [2022-11-18 19:37:33,993 INFO L137 encePairwiseOnDemand]: 191/205 looper letters, 30 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2022-11-18 19:37:33,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 199 transitions, 488 flow [2022-11-18 19:37:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:33,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2022-11-18 19:37:33,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9203252032520325 [2022-11-18 19:37:34,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2022-11-18 19:37:34,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2022-11-18 19:37:34,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:34,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2022-11-18 19:37:34,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,008 INFO L175 Difference]: Start difference. First operand has 184 places, 183 transitions, 374 flow. Second operand 3 states and 566 transitions. [2022-11-18 19:37:34,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 199 transitions, 488 flow [2022-11-18 19:37:34,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 199 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:34,019 INFO L231 Difference]: Finished difference. Result has 186 places, 193 transitions, 458 flow [2022-11-18 19:37:34,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=186, PETRI_TRANSITIONS=193} [2022-11-18 19:37:34,022 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -2 predicate places. [2022-11-18 19:37:34,023 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 193 transitions, 458 flow [2022-11-18 19:37:34,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-18 19:37:34,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:34,024 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] [2022-11-18 19:37:34,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:37:34,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash -430049588, now seen corresponding path program 1 times [2022-11-18 19:37:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:34,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209523986] [2022-11-18 19:37:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:34,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:34,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209523986] [2022-11-18 19:37:34,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209523986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:34,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:34,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:34,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404652934] [2022-11-18 19:37:34,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:34,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:34,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:34,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:34,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:34,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 205 [2022-11-18 19:37:34,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 193 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:34,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 205 [2022-11-18 19:37:34,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:34,503 INFO L130 PetriNetUnfolder]: 146/1184 cut-off events. [2022-11-18 19:37:34,503 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-11-18 19:37:34,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1614 conditions, 1184 events. 146/1184 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7695 event pairs, 37 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1238. Up to 194 conditions per place. [2022-11-18 19:37:34,514 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 15 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2022-11-18 19:37:34,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 198 transitions, 503 flow [2022-11-18 19:37:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:34,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2022-11-18 19:37:34,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9414634146341463 [2022-11-18 19:37:34,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2022-11-18 19:37:34,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2022-11-18 19:37:34,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:34,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2022-11-18 19:37:34,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-18 19:37:34,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,526 INFO L175 Difference]: Start difference. First operand has 186 places, 193 transitions, 458 flow. Second operand 3 states and 579 transitions. [2022-11-18 19:37:34,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 198 transitions, 503 flow [2022-11-18 19:37:34,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 198 transitions, 483 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:34,538 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 450 flow [2022-11-18 19:37:34,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2022-11-18 19:37:34,545 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2022-11-18 19:37:34,545 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 450 flow [2022-11-18 19:37:34,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:34,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:34,547 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] [2022-11-18 19:37:34,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:37:34,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:34,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:34,548 INFO L85 PathProgramCache]: Analyzing trace with hash -697431249, now seen corresponding path program 1 times [2022-11-18 19:37:34,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:34,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10497345] [2022-11-18 19:37:34,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:34,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:35,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:35,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10497345] [2022-11-18 19:37:35,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10497345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:35,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:37:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616260756] [2022-11-18 19:37:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:35,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:37:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:35,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:37:35,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:35,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2022-11-18 19:37:35,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 178.83333333333334) internal successors, (1073), 6 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:35,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2022-11-18 19:37:35,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:35,563 INFO L130 PetriNetUnfolder]: 114/1058 cut-off events. [2022-11-18 19:37:35,563 INFO L131 PetriNetUnfolder]: For 12/85 co-relation queries the response was YES. [2022-11-18 19:37:35,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 1058 events. 114/1058 cut-off events. For 12/85 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6431 event pairs, 32 based on Foata normal form. 44/969 useless extension candidates. Maximal degree in co-relation 1116. Up to 179 conditions per place. [2022-11-18 19:37:35,572 INFO L137 encePairwiseOnDemand]: 200/205 looper letters, 15 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2022-11-18 19:37:35,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 193 transitions, 486 flow [2022-11-18 19:37:35,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:37:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:37:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1082 transitions. [2022-11-18 19:37:35,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8796747967479674 [2022-11-18 19:37:35,576 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1082 transitions. [2022-11-18 19:37:35,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1082 transitions. [2022-11-18 19:37:35,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:35,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1082 transitions. [2022-11-18 19:37:35,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.33333333333334) internal successors, (1082), 6 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 205.0) internal successors, (1435), 7 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,584 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 450 flow. Second operand 6 states and 1082 transitions. [2022-11-18 19:37:35,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 193 transitions, 486 flow [2022-11-18 19:37:35,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 193 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:37:35,591 INFO L231 Difference]: Finished difference. Result has 190 places, 193 transitions, 454 flow [2022-11-18 19:37:35,592 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=190, PETRI_TRANSITIONS=193} [2022-11-18 19:37:35,595 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2022-11-18 19:37:35,596 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 193 transitions, 454 flow [2022-11-18 19:37:35,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.83333333333334) internal successors, (1073), 6 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:35,597 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] [2022-11-18 19:37:35,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:37:35,598 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:35,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash -279361605, now seen corresponding path program 1 times [2022-11-18 19:37:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:35,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837319628] [2022-11-18 19:37:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:35,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:35,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837319628] [2022-11-18 19:37:35,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837319628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:35,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:35,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091411649] [2022-11-18 19:37:35,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:35,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:35,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 205 [2022-11-18 19:37:35,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 193 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:35,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:35,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 205 [2022-11-18 19:37:35,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:36,084 INFO L130 PetriNetUnfolder]: 357/2027 cut-off events. [2022-11-18 19:37:36,084 INFO L131 PetriNetUnfolder]: For 272/311 co-relation queries the response was YES. [2022-11-18 19:37:36,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3149 conditions, 2027 events. 357/2027 cut-off events. For 272/311 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 15284 event pairs, 118 based on Foata normal form. 9/1768 useless extension candidates. Maximal degree in co-relation 2777. Up to 559 conditions per place. [2022-11-18 19:37:36,103 INFO L137 encePairwiseOnDemand]: 198/205 looper letters, 43 selfloop transitions, 10 changer transitions 0/210 dead transitions. [2022-11-18 19:37:36,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 210 transitions, 619 flow [2022-11-18 19:37:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-11-18 19:37:36,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9024390243902439 [2022-11-18 19:37:36,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-11-18 19:37:36,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-11-18 19:37:36,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:36,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-11-18 19:37:36,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,112 INFO L175 Difference]: Start difference. First operand has 190 places, 193 transitions, 454 flow. Second operand 3 states and 555 transitions. [2022-11-18 19:37:36,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 210 transitions, 619 flow [2022-11-18 19:37:36,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 210 transitions, 612 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:37:36,118 INFO L231 Difference]: Finished difference. Result has 190 places, 201 transitions, 533 flow [2022-11-18 19:37:36,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=190, PETRI_TRANSITIONS=201} [2022-11-18 19:37:36,120 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2022-11-18 19:37:36,120 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 201 transitions, 533 flow [2022-11-18 19:37:36,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:36,121 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] [2022-11-18 19:37:36,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:37:36,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1823225550, now seen corresponding path program 1 times [2022-11-18 19:37:36,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:36,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122134558] [2022-11-18 19:37:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:36,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:36,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122134558] [2022-11-18 19:37:36,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122134558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:36,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:36,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585392188] [2022-11-18 19:37:36,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:36,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:36,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 205 [2022-11-18 19:37:36,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 201 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:36,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 205 [2022-11-18 19:37:36,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:36,321 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([464] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][103], [231#true, 221#(= thread2Thread1of1ForFork1_~j~0 0), 137#L894-2true, Black: 213#true, 71#L914-4true, 239#(= ~num~0 0), Black: 233#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet7|), 158#L880-1true]) [2022-11-18 19:37:36,321 INFO L383 tUnfolder$Statistics]: this new event has 115 ancestors and is cut-off event [2022-11-18 19:37:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 19:37:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:37:36,322 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:37:36,571 INFO L130 PetriNetUnfolder]: 333/2073 cut-off events. [2022-11-18 19:37:36,572 INFO L131 PetriNetUnfolder]: For 368/393 co-relation queries the response was YES. [2022-11-18 19:37:36,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 2073 events. 333/2073 cut-off events. For 368/393 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 15551 event pairs, 105 based on Foata normal form. 12/1815 useless extension candidates. Maximal degree in co-relation 2476. Up to 357 conditions per place. [2022-11-18 19:37:36,590 INFO L137 encePairwiseOnDemand]: 200/205 looper letters, 17 selfloop transitions, 3 changer transitions 0/207 dead transitions. [2022-11-18 19:37:36,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 207 transitions, 587 flow [2022-11-18 19:37:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2022-11-18 19:37:36,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9382113821138212 [2022-11-18 19:37:36,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2022-11-18 19:37:36,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2022-11-18 19:37:36,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:36,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2022-11-18 19:37:36,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,598 INFO L175 Difference]: Start difference. First operand has 190 places, 201 transitions, 533 flow. Second operand 3 states and 577 transitions. [2022-11-18 19:37:36,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 207 transitions, 587 flow [2022-11-18 19:37:36,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 207 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:36,604 INFO L231 Difference]: Finished difference. Result has 192 places, 203 transitions, 537 flow [2022-11-18 19:37:36,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=192, PETRI_TRANSITIONS=203} [2022-11-18 19:37:36,605 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2022-11-18 19:37:36,605 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 203 transitions, 537 flow [2022-11-18 19:37:36,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:36,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:36,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:37:36,607 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:36,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1406451362, now seen corresponding path program 1 times [2022-11-18 19:37:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:36,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520077116] [2022-11-18 19:37:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:36,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:36,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:36,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520077116] [2022-11-18 19:37:36,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520077116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:36,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:36,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17405505] [2022-11-18 19:37:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:36,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:36,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:36,703 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 205 [2022-11-18 19:37:36,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 203 transitions, 537 flow. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:36,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:36,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 205 [2022-11-18 19:37:36,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:37,103 INFO L130 PetriNetUnfolder]: 362/2280 cut-off events. [2022-11-18 19:37:37,104 INFO L131 PetriNetUnfolder]: For 311/352 co-relation queries the response was YES. [2022-11-18 19:37:37,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 2280 events. 362/2280 cut-off events. For 311/352 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17694 event pairs, 97 based on Foata normal form. 17/2063 useless extension candidates. Maximal degree in co-relation 3420. Up to 432 conditions per place. [2022-11-18 19:37:37,126 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 12 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-18 19:37:37,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 207 transitions, 574 flow [2022-11-18 19:37:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-18 19:37:37,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9463414634146341 [2022-11-18 19:37:37,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-18 19:37:37,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-18 19:37:37,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:37,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-18 19:37:37,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,134 INFO L175 Difference]: Start difference. First operand has 192 places, 203 transitions, 537 flow. Second operand 3 states and 582 transitions. [2022-11-18 19:37:37,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 207 transitions, 574 flow [2022-11-18 19:37:37,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 207 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:37,140 INFO L231 Difference]: Finished difference. Result has 193 places, 204 transitions, 543 flow [2022-11-18 19:37:37,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=193, PETRI_TRANSITIONS=204} [2022-11-18 19:37:37,141 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2022-11-18 19:37:37,142 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 204 transitions, 543 flow [2022-11-18 19:37:37,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:37,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:37,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:37:37,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:37,144 INFO L85 PathProgramCache]: Analyzing trace with hash -665958174, now seen corresponding path program 1 times [2022-11-18 19:37:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:37,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387006293] [2022-11-18 19:37:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:37,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:37,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:37,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387006293] [2022-11-18 19:37:37,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387006293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:37,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:37,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:37:37,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561829180] [2022-11-18 19:37:37,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:37,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:37,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:37,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:37,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:37,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2022-11-18 19:37:37,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 204 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:37,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2022-11-18 19:37:37,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:37,450 INFO L130 PetriNetUnfolder]: 54/739 cut-off events. [2022-11-18 19:37:37,450 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-18 19:37:37,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 739 events. 54/739 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3508 event pairs, 10 based on Foata normal form. 30/721 useless extension candidates. Maximal degree in co-relation 927. Up to 102 conditions per place. [2022-11-18 19:37:37,455 INFO L137 encePairwiseOnDemand]: 197/205 looper letters, 16 selfloop transitions, 8 changer transitions 0/185 dead transitions. [2022-11-18 19:37:37,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 185 transitions, 495 flow [2022-11-18 19:37:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2022-11-18 19:37:37,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9089430894308943 [2022-11-18 19:37:37,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2022-11-18 19:37:37,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2022-11-18 19:37:37,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:37,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2022-11-18 19:37:37,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,463 INFO L175 Difference]: Start difference. First operand has 193 places, 204 transitions, 543 flow. Second operand 3 states and 559 transitions. [2022-11-18 19:37:37,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 185 transitions, 495 flow [2022-11-18 19:37:37,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 467 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-11-18 19:37:37,469 INFO L231 Difference]: Finished difference. Result has 187 places, 183 transitions, 429 flow [2022-11-18 19:37:37,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=187, PETRI_TRANSITIONS=183} [2022-11-18 19:37:37,471 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2022-11-18 19:37:37,471 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 183 transitions, 429 flow [2022-11-18 19:37:37,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:37,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:37,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:37:37,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:37,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:37,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2086305459, now seen corresponding path program 1 times [2022-11-18 19:37:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:37,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406110039] [2022-11-18 19:37:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:37,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:37,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406110039] [2022-11-18 19:37:37,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406110039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:37,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:37,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573751186] [2022-11-18 19:37:37,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:37,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:37,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2022-11-18 19:37:37,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 183 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:37,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2022-11-18 19:37:37,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:37,738 INFO L130 PetriNetUnfolder]: 48/665 cut-off events. [2022-11-18 19:37:37,739 INFO L131 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-11-18 19:37:37,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 665 events. 48/665 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3193 event pairs, 12 based on Foata normal form. 1/631 useless extension candidates. Maximal degree in co-relation 841. Up to 54 conditions per place. [2022-11-18 19:37:37,744 INFO L137 encePairwiseOnDemand]: 197/205 looper letters, 13 selfloop transitions, 4 changer transitions 3/181 dead transitions. [2022-11-18 19:37:37,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 181 transitions, 462 flow [2022-11-18 19:37:37,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:37,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2022-11-18 19:37:37,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8975609756097561 [2022-11-18 19:37:37,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2022-11-18 19:37:37,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2022-11-18 19:37:37,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:37,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2022-11-18 19:37:37,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,753 INFO L175 Difference]: Start difference. First operand has 187 places, 183 transitions, 429 flow. Second operand 3 states and 552 transitions. [2022-11-18 19:37:37,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 181 transitions, 462 flow [2022-11-18 19:37:37,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 181 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:37:37,759 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 417 flow [2022-11-18 19:37:37,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=417, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2022-11-18 19:37:37,761 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2022-11-18 19:37:37,761 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 417 flow [2022-11-18 19:37:37,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:37,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:37,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:37:37,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:37,764 INFO L85 PathProgramCache]: Analyzing trace with hash 668285984, now seen corresponding path program 1 times [2022-11-18 19:37:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:37,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963190339] [2022-11-18 19:37:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:37,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:37,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963190339] [2022-11-18 19:37:37,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963190339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:37,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:37,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997960971] [2022-11-18 19:37:37,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:37,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:37,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:37,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:37,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:37,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 205 [2022-11-18 19:37:37,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 417 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:37,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:37,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 205 [2022-11-18 19:37:37,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:38,019 INFO L130 PetriNetUnfolder]: 50/656 cut-off events. [2022-11-18 19:37:38,019 INFO L131 PetriNetUnfolder]: For 37/38 co-relation queries the response was YES. [2022-11-18 19:37:38,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 656 events. 50/656 cut-off events. For 37/38 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3166 event pairs, 16 based on Foata normal form. 0/630 useless extension candidates. Maximal degree in co-relation 825. Up to 74 conditions per place. [2022-11-18 19:37:38,024 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 16 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-18 19:37:38,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 177 transitions, 454 flow [2022-11-18 19:37:38,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2022-11-18 19:37:38,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8845528455284553 [2022-11-18 19:37:38,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2022-11-18 19:37:38,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2022-11-18 19:37:38,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:38,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2022-11-18 19:37:38,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:38,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:38,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:38,032 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 417 flow. Second operand 3 states and 544 transitions. [2022-11-18 19:37:38,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 177 transitions, 454 flow [2022-11-18 19:37:38,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 177 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:38,063 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 411 flow [2022-11-18 19:37:38,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2022-11-18 19:37:38,065 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -7 predicate places. [2022-11-18 19:37:38,065 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 411 flow [2022-11-18 19:37:38,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:38,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:38,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:38,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:37:38,066 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash 136210870, now seen corresponding path program 1 times [2022-11-18 19:37:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:38,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535991615] [2022-11-18 19:37:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:38,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:38,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:38,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535991615] [2022-11-18 19:37:38,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535991615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:38,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449964997] [2022-11-18 19:37:38,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:38,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:38,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:38,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:38,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:37:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:37:38,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:38,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:38,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449964997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:38,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:38,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 19:37:38,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218841899] [2022-11-18 19:37:38,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:38,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:37:38,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:37:38,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:37:38,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 205 [2022-11-18 19:37:38,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 190.22222222222223) internal successors, (1712), 9 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:38,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:38,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 205 [2022-11-18 19:37:38,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:38,986 INFO L130 PetriNetUnfolder]: 71/959 cut-off events. [2022-11-18 19:37:38,986 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-18 19:37:38,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 959 events. 71/959 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4723 event pairs, 12 based on Foata normal form. 8/932 useless extension candidates. Maximal degree in co-relation 1052. Up to 53 conditions per place. [2022-11-18 19:37:38,993 INFO L137 encePairwiseOnDemand]: 199/205 looper letters, 18 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2022-11-18 19:37:38,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 191 transitions, 504 flow [2022-11-18 19:37:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:37:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:37:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1721 transitions. [2022-11-18 19:37:38,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9327913279132791 [2022-11-18 19:37:38,999 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1721 transitions. [2022-11-18 19:37:38,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1721 transitions. [2022-11-18 19:37:39,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:39,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1721 transitions. [2022-11-18 19:37:39,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.22222222222223) internal successors, (1721), 9 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 205.0) internal successors, (2050), 10 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,011 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 205.0) internal successors, (2050), 10 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,011 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 411 flow. Second operand 9 states and 1721 transitions. [2022-11-18 19:37:39,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 191 transitions, 504 flow [2022-11-18 19:37:39,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 191 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:39,017 INFO L231 Difference]: Finished difference. Result has 190 places, 182 transitions, 457 flow [2022-11-18 19:37:39,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=457, PETRI_PLACES=190, PETRI_TRANSITIONS=182} [2022-11-18 19:37:39,019 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2022-11-18 19:37:39,019 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 182 transitions, 457 flow [2022-11-18 19:37:39,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 190.22222222222223) internal successors, (1712), 9 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:39,023 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:39,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:39,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:37:39,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:39,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:39,230 INFO L85 PathProgramCache]: Analyzing trace with hash 282148136, now seen corresponding path program 1 times [2022-11-18 19:37:39,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:39,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73933008] [2022-11-18 19:37:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:39,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:39,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:39,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73933008] [2022-11-18 19:37:39,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73933008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:39,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:39,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:39,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541833621] [2022-11-18 19:37:39,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:39,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:39,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:39,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:39,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:39,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 205 [2022-11-18 19:37:39,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 182 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:39,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 205 [2022-11-18 19:37:39,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:39,522 INFO L130 PetriNetUnfolder]: 97/1058 cut-off events. [2022-11-18 19:37:39,522 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2022-11-18 19:37:39,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1058 events. 97/1058 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5773 event pairs, 42 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1299. Up to 257 conditions per place. [2022-11-18 19:37:39,531 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 21 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-11-18 19:37:39,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 182 transitions, 504 flow [2022-11-18 19:37:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2022-11-18 19:37:39,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8747967479674796 [2022-11-18 19:37:39,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2022-11-18 19:37:39,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2022-11-18 19:37:39,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:39,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2022-11-18 19:37:39,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,539 INFO L175 Difference]: Start difference. First operand has 190 places, 182 transitions, 457 flow. Second operand 3 states and 538 transitions. [2022-11-18 19:37:39,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 182 transitions, 504 flow [2022-11-18 19:37:39,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 182 transitions, 498 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 19:37:39,545 INFO L231 Difference]: Finished difference. Result has 190 places, 181 transitions, 453 flow [2022-11-18 19:37:39,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=190, PETRI_TRANSITIONS=181} [2022-11-18 19:37:39,546 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2022-11-18 19:37:39,546 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 181 transitions, 453 flow [2022-11-18 19:37:39,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:39,547 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:39,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:37:39,548 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1398426582, now seen corresponding path program 1 times [2022-11-18 19:37:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:39,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511423269] [2022-11-18 19:37:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:39,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:39,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511423269] [2022-11-18 19:37:39,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511423269] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837755886] [2022-11-18 19:37:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:39,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:39,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:39,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:39,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:37:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:39,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:37:39,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:37:39,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:39,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837755886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:39,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:37:39,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 19:37:39,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134253701] [2022-11-18 19:37:39,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:39,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:39,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:39,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:39,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:39,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 205 [2022-11-18 19:37:39,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 181 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:39,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:39,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 205 [2022-11-18 19:37:39,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:40,100 INFO L130 PetriNetUnfolder]: 69/938 cut-off events. [2022-11-18 19:37:40,101 INFO L131 PetriNetUnfolder]: For 40/41 co-relation queries the response was YES. [2022-11-18 19:37:40,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 938 events. 69/938 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4760 event pairs, 20 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1239. Up to 93 conditions per place. [2022-11-18 19:37:40,113 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 15 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-11-18 19:37:40,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 181 transitions, 488 flow [2022-11-18 19:37:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:40,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2022-11-18 19:37:40,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8829268292682927 [2022-11-18 19:37:40,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2022-11-18 19:37:40,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2022-11-18 19:37:40,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:40,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2022-11-18 19:37:40,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,121 INFO L175 Difference]: Start difference. First operand has 190 places, 181 transitions, 453 flow. Second operand 3 states and 543 transitions. [2022-11-18 19:37:40,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 181 transitions, 488 flow [2022-11-18 19:37:40,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 181 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:40,126 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 451 flow [2022-11-18 19:37:40,126 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2022-11-18 19:37:40,127 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2022-11-18 19:37:40,128 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 451 flow [2022-11-18 19:37:40,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,128 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:40,129 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:40,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:40,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 19:37:40,336 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:40,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash -187737924, now seen corresponding path program 1 times [2022-11-18 19:37:40,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285346417] [2022-11-18 19:37:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:40,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:40,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:40,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285346417] [2022-11-18 19:37:40,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285346417] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:40,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513725920] [2022-11-18 19:37:40,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:40,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:40,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:40,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:40,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:37:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:40,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:37:40,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:37:40,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:40,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513725920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:40,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:37:40,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 19:37:40,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244365713] [2022-11-18 19:37:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:40,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:40,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:40,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 205 [2022-11-18 19:37:40,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:40,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 205 [2022-11-18 19:37:40,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:40,918 INFO L130 PetriNetUnfolder]: 57/869 cut-off events. [2022-11-18 19:37:40,918 INFO L131 PetriNetUnfolder]: For 18/22 co-relation queries the response was YES. [2022-11-18 19:37:40,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 869 events. 57/869 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4082 event pairs, 10 based on Foata normal form. 1/855 useless extension candidates. Maximal degree in co-relation 1075. Up to 48 conditions per place. [2022-11-18 19:37:40,925 INFO L137 encePairwiseOnDemand]: 202/205 looper letters, 9 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-11-18 19:37:40,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 180 transitions, 474 flow [2022-11-18 19:37:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2022-11-18 19:37:40,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9317073170731708 [2022-11-18 19:37:40,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2022-11-18 19:37:40,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2022-11-18 19:37:40,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:40,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2022-11-18 19:37:40,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,933 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 451 flow. Second operand 3 states and 573 transitions. [2022-11-18 19:37:40,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 180 transitions, 474 flow [2022-11-18 19:37:40,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 180 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:40,938 INFO L231 Difference]: Finished difference. Result has 188 places, 179 transitions, 449 flow [2022-11-18 19:37:40,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=188, PETRI_TRANSITIONS=179} [2022-11-18 19:37:40,939 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 0 predicate places. [2022-11-18 19:37:40,939 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 179 transitions, 449 flow [2022-11-18 19:37:40,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:40,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:40,940 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:40,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:41,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:37:41,147 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash -324648684, now seen corresponding path program 2 times [2022-11-18 19:37:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:41,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321631991] [2022-11-18 19:37:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:41,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 19:37:41,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321631991] [2022-11-18 19:37:41,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321631991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271341905] [2022-11-18 19:37:41,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:37:41,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:41,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:37:41,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:37:41,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:37:41,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 19:37:41,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:41,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:37:41,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:37:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,809 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:37:41,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 19:37:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:37:41,865 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:37:41,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 19:37:41,907 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 19:37:41,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:41,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271341905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:41,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:37:41,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-11-18 19:37:41,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655178989] [2022-11-18 19:37:41,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:41,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:37:41,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:41,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:37:41,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:37:41,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2022-11-18 19:37:41,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 179 transitions, 449 flow. Second operand has 7 states, 7 states have (on average 179.42857142857142) internal successors, (1256), 7 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:41,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:41,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2022-11-18 19:37:41,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:42,099 INFO L130 PetriNetUnfolder]: 53/848 cut-off events. [2022-11-18 19:37:42,100 INFO L131 PetriNetUnfolder]: For 14/43 co-relation queries the response was YES. [2022-11-18 19:37:42,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 848 events. 53/848 cut-off events. For 14/43 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3949 event pairs, 8 based on Foata normal form. 4/842 useless extension candidates. Maximal degree in co-relation 1092. Up to 48 conditions per place. [2022-11-18 19:37:42,107 INFO L137 encePairwiseOnDemand]: 199/205 looper letters, 13 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2022-11-18 19:37:42,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 178 transitions, 483 flow [2022-11-18 19:37:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:37:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 19:37:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1258 transitions. [2022-11-18 19:37:42,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766550522648083 [2022-11-18 19:37:42,112 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1258 transitions. [2022-11-18 19:37:42,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1258 transitions. [2022-11-18 19:37:42,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:42,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1258 transitions. [2022-11-18 19:37:42,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 179.71428571428572) internal successors, (1258), 7 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:42,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:42,121 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 205.0) internal successors, (1640), 8 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:42,122 INFO L175 Difference]: Start difference. First operand has 188 places, 179 transitions, 449 flow. Second operand 7 states and 1258 transitions. [2022-11-18 19:37:42,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 178 transitions, 483 flow [2022-11-18 19:37:42,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 178 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:37:42,127 INFO L231 Difference]: Finished difference. Result has 191 places, 178 transitions, 453 flow [2022-11-18 19:37:42,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=453, PETRI_PLACES=191, PETRI_TRANSITIONS=178} [2022-11-18 19:37:42,128 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2022-11-18 19:37:42,128 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 178 transitions, 453 flow [2022-11-18 19:37:42,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 179.42857142857142) internal successors, (1256), 7 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:42,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:42,130 INFO L209 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:42,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:42,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 19:37:42,337 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-18 19:37:42,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash 172974186, now seen corresponding path program 1 times [2022-11-18 19:37:42,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:42,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318538511] [2022-11-18 19:37:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:42,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 19:37:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318538511] [2022-11-18 19:37:42,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318538511] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:42,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904215381] [2022-11-18 19:37:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:42,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:42,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:42,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:37:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:42,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:37:42,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-18 19:37:42,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:42,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904215381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:42,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:37:42,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 19:37:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275778208] [2022-11-18 19:37:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:42,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:42,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:42,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 205 [2022-11-18 19:37:42,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 178 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:42,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:42,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 205 [2022-11-18 19:37:42,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:43,084 INFO L130 PetriNetUnfolder]: 55/861 cut-off events. [2022-11-18 19:37:43,084 INFO L131 PetriNetUnfolder]: For 16/18 co-relation queries the response was YES. [2022-11-18 19:37:43,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 861 events. 55/861 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4019 event pairs, 10 based on Foata normal form. 1/851 useless extension candidates. Maximal degree in co-relation 1058. Up to 48 conditions per place. [2022-11-18 19:37:43,090 INFO L137 encePairwiseOnDemand]: 203/205 looper letters, 0 selfloop transitions, 0 changer transitions 177/177 dead transitions. [2022-11-18 19:37:43,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 177 transitions, 465 flow [2022-11-18 19:37:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:37:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2022-11-18 19:37:43,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9349593495934959 [2022-11-18 19:37:43,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 575 transitions. [2022-11-18 19:37:43,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 575 transitions. [2022-11-18 19:37:43,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:43,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 575 transitions. [2022-11-18 19:37:43,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:43,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:43,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:43,099 INFO L175 Difference]: Start difference. First operand has 191 places, 178 transitions, 453 flow. Second operand 3 states and 575 transitions. [2022-11-18 19:37:43,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 177 transitions, 465 flow [2022-11-18 19:37:43,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 177 transitions, 456 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:37:43,103 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2022-11-18 19:37:43,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2022-11-18 19:37:43,104 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2022-11-18 19:37:43,104 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2022-11-18 19:37:43,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:37:43,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2022-11-18 19:37:43,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2022-11-18 19:37:43,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2022-11-18 19:37:43,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2022-11-18 19:37:43,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2022-11-18 19:37:43,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2022-11-18 19:37:43,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2022-11-18 19:37:43,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2022-11-18 19:37:43,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2022-11-18 19:37:43,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2022-11-18 19:37:43,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2022-11-18 19:37:43,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2022-11-18 19:37:43,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2022-11-18 19:37:43,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2022-11-18 19:37:43,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2022-11-18 19:37:43,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2022-11-18 19:37:43,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2022-11-18 19:37:43,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 30 remaining) [2022-11-18 19:37:43,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2022-11-18 19:37:43,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2022-11-18 19:37:43,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2022-11-18 19:37:43,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2022-11-18 19:37:43,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2022-11-18 19:37:43,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2022-11-18 19:37:43,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2022-11-18 19:37:43,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2022-11-18 19:37:43,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2022-11-18 19:37:43,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2022-11-18 19:37:43,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2022-11-18 19:37:43,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2022-11-18 19:37:43,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:43,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:37:43,323 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:43,330 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:37:43,330 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:37:43,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:37:43 BasicIcfg [2022-11-18 19:37:43,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:37:43,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:37:43,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:37:43,336 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:37:43,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:31" (3/4) ... [2022-11-18 19:37:43,339 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:37:43,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 19:37:43,347 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 19:37:43,354 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-18 19:37:43,354 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:37:43,354 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:37:43,355 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:37:43,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:37:43,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:37:43,411 INFO L158 Benchmark]: Toolchain (without parser) took 13327.37ms. Allocated memory was 132.1MB in the beginning and 333.4MB in the end (delta: 201.3MB). Free memory was 99.1MB in the beginning and 204.5MB in the end (delta: -105.4MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,411 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:43,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.04ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 91.1MB in the end (delta: 8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.24ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,412 INFO L158 Benchmark]: Boogie Preprocessor took 59.18ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 86.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,413 INFO L158 Benchmark]: RCFGBuilder took 819.95ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 66.5MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,413 INFO L158 Benchmark]: TraceAbstraction took 11476.15ms. Allocated memory was 132.1MB in the beginning and 333.4MB in the end (delta: 201.3MB). Free memory was 66.0MB in the beginning and 207.7MB in the end (delta: -141.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,414 INFO L158 Benchmark]: Witness Printer took 73.75ms. Allocated memory is still 333.4MB. Free memory was 207.7MB in the beginning and 204.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:37:43,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.04ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 91.1MB in the end (delta: 8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.24ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.18ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 86.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 819.95ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 66.5MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11476.15ms. Allocated memory was 132.1MB in the beginning and 333.4MB in the end (delta: 201.3MB). Free memory was 66.0MB in the beginning and 207.7MB in the end (delta: -141.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 73.75ms. Allocated memory is still 333.4MB. Free memory was 207.7MB in the beginning and 204.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 915]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 916]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 284 locations, 30 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.3s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 411 IncrementalHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 183 mSDtfsCounter, 411 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 875 GetRequests, 828 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=8, InterpolantAutomatonStates: 64, 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, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2401 NumberOfCodeBlocks, 2344 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2488 ConstructedInterpolants, 0 QuantifiedInterpolants, 3405 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1700 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 232/249 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:37:43,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e268d90-b58c-45b6-8c53-e5919fd19334/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE