./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ --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 bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 --- 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-dbf71c6-m [2022-10-17 10:12:21,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:12:21,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:12:21,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:12:21,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:12:21,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:12:21,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:12:21,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:12:21,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:12:21,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:12:21,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:12:21,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:12:21,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:12:21,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:12:21,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:12:21,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:12:21,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:12:21,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:12:21,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:12:21,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:12:21,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:12:21,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:12:21,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:12:21,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:12:21,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:12:21,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:12:21,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:12:21,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:12:21,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:12:21,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:12:21,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:12:21,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:12:21,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:12:21,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:12:21,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:12:21,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:12:21,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:12:21,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:12:21,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:12:21,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:12:21,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:12:21,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:12:21,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:12:21,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:12:21,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:12:21,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:12:21,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:12:21,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:12:21,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:12:21,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:12:21,847 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:12:21,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:12:21,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:12:21,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:12:21,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:12:21,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:12:21,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:12:21,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:12:21,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:12:21,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:12:21,850 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:12:21,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:12:21,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:12:21,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:12:21,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:12:21,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:12:21,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:12:21,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:12:21,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:21,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:12:21,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:12:21,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:12:21,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:12:21,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:12:21,855 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:12:21,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:12:21,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:12:21,855 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_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 [2022-10-17 10:12:22,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:12:22,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:12:22,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:12:22,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:12:22,197 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:12:22,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2022-10-17 10:12:22,269 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/data/9f8bcfad1/553f8af31d7248828224e538c07053ff/FLAGfe943c15f [2022-10-17 10:12:22,930 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:12:22,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2022-10-17 10:12:22,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/data/9f8bcfad1/553f8af31d7248828224e538c07053ff/FLAGfe943c15f [2022-10-17 10:12:23,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/data/9f8bcfad1/553f8af31d7248828224e538c07053ff [2022-10-17 10:12:23,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:12:23,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:12:23,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:23,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:12:23,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:12:23,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:23,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4796da1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23, skipping insertion in model container [2022-10-17 10:12:23,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:23,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:12:23,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:23,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2022-10-17 10:12:23,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:23,787 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:12:23,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2022-10-17 10:12:23,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:23,901 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:12:23,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23 WrapperNode [2022-10-17 10:12:23,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:23,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:23,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:12:23,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:12:23,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:23,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:23,999 INFO L138 Inliner]: procedures = 169, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 180 [2022-10-17 10:12:24,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:24,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:12:24,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:12:24,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:12:24,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,047 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:12:24,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:12:24,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:12:24,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:12:24,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (1/1) ... [2022-10-17 10:12:24,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:24,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:12:24,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:12:24,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_376f5df6-3b07-4be8-8643-112941384b55/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:12:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-10-17 10:12:24,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:12:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:12:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:12:24,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:12:24,137 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:12:24,256 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:12:24,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:12:24,609 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:12:24,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:12:24,781 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:12:24,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:24 BoogieIcfgContainer [2022-10-17 10:12:24,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:12:24,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:12:24,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:12:24,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:12:24,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:12:23" (1/3) ... [2022-10-17 10:12:24,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759c5373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:24, skipping insertion in model container [2022-10-17 10:12:24,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:23" (2/3) ... [2022-10-17 10:12:24,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759c5373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:24, skipping insertion in model container [2022-10-17 10:12:24,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:24" (3/3) ... [2022-10-17 10:12:24,793 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i [2022-10-17 10:12:24,801 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:12:24,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:12:24,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-17 10:12:24,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:12:24,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:12:24,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 315 flow [2022-10-17 10:12:25,081 INFO L130 PetriNetUnfolder]: 11/233 cut-off events. [2022-10-17 10:12:25,083 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:12:25,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 233 events. 11/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 738 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 137. Up to 4 conditions per place. [2022-10-17 10:12:25,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 155 transitions, 315 flow [2022-10-17 10:12:25,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 155 transitions, 315 flow [2022-10-17 10:12:25,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:12:25,140 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;@22eb5262, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:12:25,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-10-17 10:12:25,161 INFO L130 PetriNetUnfolder]: 1/34 cut-off events. [2022-10-17 10:12:25,161 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:12:25,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:25,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:25,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-10-17 10:12:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash 683230813, now seen corresponding path program 1 times [2022-10-17 10:12:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:25,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065174282] [2022-10-17 10:12:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:25,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:25,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:25,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065174282] [2022-10-17 10:12:25,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065174282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:25,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:25,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:12:25,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814732791] [2022-10-17 10:12:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:25,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:12:25,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:25,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:12:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:12:25,510 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 155 [2022-10-17 10:12:25,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 155 transitions, 315 flow. Second operand has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:25,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:25,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 155 [2022-10-17 10:12:25,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:25,595 INFO L130 PetriNetUnfolder]: 5/255 cut-off events. [2022-10-17 10:12:25,595 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:12:25,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 255 events. 5/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 737 event pairs, 1 based on Foata normal form. 12/228 useless extension candidates. Maximal degree in co-relation 172. Up to 7 conditions per place. [2022-10-17 10:12:25,601 INFO L137 encePairwiseOnDemand]: 140/155 looper letters, 3 selfloop transitions, 0 changer transitions 0/138 dead transitions. [2022-10-17 10:12:25,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 138 transitions, 287 flow [2022-10-17 10:12:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:12:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-10-17 10:12:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 288 transitions. [2022-10-17 10:12:25,617 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9290322580645162 [2022-10-17 10:12:25,618 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 288 transitions. [2022-10-17 10:12:25,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 288 transitions. [2022-10-17 10:12:25,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:12:25,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 288 transitions. [2022-10-17 10:12:25,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 144.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:25,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:25,634 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:25,636 INFO L175 Difference]: Start difference. First operand has 151 places, 155 transitions, 315 flow. Second operand 2 states and 288 transitions. [2022-10-17 10:12:25,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 138 transitions, 287 flow [2022-10-17 10:12:25,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 138 transitions, 287 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:12:25,645 INFO L231 Difference]: Finished difference. Result has 140 places, 138 transitions, 281 flow [2022-10-17 10:12:25,647 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=281, PETRI_PLACES=140, PETRI_TRANSITIONS=138} [2022-10-17 10:12:25,651 INFO L287 CegarLoopForPetriNet]: 151 programPoint places, -11 predicate places. [2022-10-17 10:12:25,651 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 138 transitions, 281 flow [2022-10-17 10:12:25,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:25,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:25,652 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:25,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:12:25,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-10-17 10:12:25,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash -27980268, now seen corresponding path program 1 times [2022-10-17 10:12:25,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:25,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432926933] [2022-10-17 10:12:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:25,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:12:25,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:12:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:12:25,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:12:25,772 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:12:25,774 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-10-17 10:12:25,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-10-17 10:12:25,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-10-17 10:12:25,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-10-17 10:12:25,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-10-17 10:12:25,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-10-17 10:12:25,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-10-17 10:12:25,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-10-17 10:12:25,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-10-17 10:12:25,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-10-17 10:12:25,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-10-17 10:12:25,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-10-17 10:12:25,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-10-17 10:12:25,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-10-17 10:12:25,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-10-17 10:12:25,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-10-17 10:12:25,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-10-17 10:12:25,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-10-17 10:12:25,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-10-17 10:12:25,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-10-17 10:12:25,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-10-17 10:12:25,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-10-17 10:12:25,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-10-17 10:12:25,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-10-17 10:12:25,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-10-17 10:12:25,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-10-17 10:12:25,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-10-17 10:12:25,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-10-17 10:12:25,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-10-17 10:12:25,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-10-17 10:12:25,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-10-17 10:12:25,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-10-17 10:12:25,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-10-17 10:12:25,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-10-17 10:12:25,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-10-17 10:12:25,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-10-17 10:12:25,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-10-17 10:12:25,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:12:25,789 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:12:25,792 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-10-17 10:12:25,792 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-10-17 10:12:25,863 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:12:25,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 213 transitions, 438 flow [2022-10-17 10:12:25,951 INFO L130 PetriNetUnfolder]: 18/371 cut-off events. [2022-10-17 10:12:25,951 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 10:12:25,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 371 events. 18/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1556 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2022-10-17 10:12:25,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 213 transitions, 438 flow [2022-10-17 10:12:25,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 213 transitions, 438 flow [2022-10-17 10:12:25,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:12:25,967 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;@22eb5262, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:12:25,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-10-17 10:12:25,978 INFO L130 PetriNetUnfolder]: 1/33 cut-off events. [2022-10-17 10:12:25,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:12:25,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:25,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:25,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-10-17 10:12:25,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:25,980 INFO L85 PathProgramCache]: Analyzing trace with hash 537933281, now seen corresponding path program 1 times [2022-10-17 10:12:25,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:25,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033478381] [2022-10-17 10:12:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:25,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:26,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:26,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033478381] [2022-10-17 10:12:26,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033478381] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:26,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:26,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:12:26,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442768138] [2022-10-17 10:12:26,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:26,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:12:26,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:26,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:12:26,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:12:26,041 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 213 [2022-10-17 10:12:26,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 213 transitions, 438 flow. Second operand has 2 states, 2 states have (on average 184.0) internal successors, (368), 2 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:26,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 213 [2022-10-17 10:12:26,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:26,191 INFO L130 PetriNetUnfolder]: 18/617 cut-off events. [2022-10-17 10:12:26,191 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-10-17 10:12:26,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 617 events. 18/617 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3384 event pairs, 7 based on Foata normal form. 35/545 useless extension candidates. Maximal degree in co-relation 374. Up to 21 conditions per place. [2022-10-17 10:12:26,202 INFO L137 encePairwiseOnDemand]: 191/213 looper letters, 5 selfloop transitions, 0 changer transitions 0/188 dead transitions. [2022-10-17 10:12:26,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 188 transitions, 398 flow [2022-10-17 10:12:26,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:12:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-10-17 10:12:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 393 transitions. [2022-10-17 10:12:26,211 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9225352112676056 [2022-10-17 10:12:26,211 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 393 transitions. [2022-10-17 10:12:26,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 393 transitions. [2022-10-17 10:12:26,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:12:26,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 393 transitions. [2022-10-17 10:12:26,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.5) internal successors, (393), 2 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,219 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,219 INFO L175 Difference]: Start difference. First operand has 208 places, 213 transitions, 438 flow. Second operand 2 states and 393 transitions. [2022-10-17 10:12:26,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 188 transitions, 398 flow [2022-10-17 10:12:26,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 396 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-10-17 10:12:26,229 INFO L231 Difference]: Finished difference. Result has 191 places, 188 transitions, 386 flow [2022-10-17 10:12:26,229 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=386, PETRI_PLACES=191, PETRI_TRANSITIONS=188} [2022-10-17 10:12:26,230 INFO L287 CegarLoopForPetriNet]: 208 programPoint places, -17 predicate places. [2022-10-17 10:12:26,230 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 188 transitions, 386 flow [2022-10-17 10:12:26,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 184.0) internal successors, (368), 2 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:26,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:26,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:12:26,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-10-17 10:12:26,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:26,233 INFO L85 PathProgramCache]: Analyzing trace with hash -889540045, now seen corresponding path program 1 times [2022-10-17 10:12:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:26,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198354062] [2022-10-17 10:12:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:26,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:26,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198354062] [2022-10-17 10:12:26,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198354062] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:26,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:26,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:26,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044557312] [2022-10-17 10:12:26,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:26,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:12:26,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:26,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:12:26,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:12:26,810 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 213 [2022-10-17 10:12:26,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 188 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:26,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:26,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 213 [2022-10-17 10:12:26,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:29,290 INFO L130 PetriNetUnfolder]: 2930/12510 cut-off events. [2022-10-17 10:12:29,290 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-10-17 10:12:29,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16995 conditions, 12510 events. 2930/12510 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 139451 event pairs, 1054 based on Foata normal form. 0/10297 useless extension candidates. Maximal degree in co-relation 16990. Up to 2561 conditions per place. [2022-10-17 10:12:29,500 INFO L137 encePairwiseOnDemand]: 204/213 looper letters, 81 selfloop transitions, 14 changer transitions 0/255 dead transitions. [2022-10-17 10:12:29,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 255 transitions, 710 flow [2022-10-17 10:12:29,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:12:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1056 transitions. [2022-10-17 10:12:29,505 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8262910798122066 [2022-10-17 10:12:29,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1056 transitions. [2022-10-17 10:12:29,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1056 transitions. [2022-10-17 10:12:29,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:12:29,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1056 transitions. [2022-10-17 10:12:29,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,516 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,516 INFO L175 Difference]: Start difference. First operand has 191 places, 188 transitions, 386 flow. Second operand 6 states and 1056 transitions. [2022-10-17 10:12:29,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 255 transitions, 710 flow [2022-10-17 10:12:29,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 255 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:12:29,524 INFO L231 Difference]: Finished difference. Result has 201 places, 202 transitions, 488 flow [2022-10-17 10:12:29,525 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=488, PETRI_PLACES=201, PETRI_TRANSITIONS=202} [2022-10-17 10:12:29,526 INFO L287 CegarLoopForPetriNet]: 208 programPoint places, -7 predicate places. [2022-10-17 10:12:29,526 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 202 transitions, 488 flow [2022-10-17 10:12:29,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:29,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:29,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:12:29,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-10-17 10:12:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:29,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1152725886, now seen corresponding path program 1 times [2022-10-17 10:12:29,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:29,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633685977] [2022-10-17 10:12:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:29,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:29,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633685977] [2022-10-17 10:12:29,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633685977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:29,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:29,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934192942] [2022-10-17 10:12:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:29,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:12:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:12:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:12:29,911 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 213 [2022-10-17 10:12:29,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 202 transitions, 488 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:29,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 213 [2022-10-17 10:12:29,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:33,728 INFO L130 PetriNetUnfolder]: 5937/23184 cut-off events. [2022-10-17 10:12:33,728 INFO L131 PetriNetUnfolder]: For 5329/5375 co-relation queries the response was YES. [2022-10-17 10:12:33,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37019 conditions, 23184 events. 5937/23184 cut-off events. For 5329/5375 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 280018 event pairs, 1240 based on Foata normal form. 15/19511 useless extension candidates. Maximal degree in co-relation 37009. Up to 4756 conditions per place. [2022-10-17 10:12:33,995 INFO L137 encePairwiseOnDemand]: 204/213 looper letters, 117 selfloop transitions, 30 changer transitions 0/309 dead transitions. [2022-10-17 10:12:33,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 309 transitions, 1216 flow [2022-10-17 10:12:33,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:12:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1065 transitions. [2022-10-17 10:12:34,000 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-10-17 10:12:34,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1065 transitions. [2022-10-17 10:12:34,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1065 transitions. [2022-10-17 10:12:34,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:12:34,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1065 transitions. [2022-10-17 10:12:34,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,012 INFO L175 Difference]: Start difference. First operand has 201 places, 202 transitions, 488 flow. Second operand 6 states and 1065 transitions. [2022-10-17 10:12:34,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 309 transitions, 1216 flow [2022-10-17 10:12:34,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 309 transitions, 1216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:12:34,039 INFO L231 Difference]: Finished difference. Result has 211 places, 232 transitions, 766 flow [2022-10-17 10:12:34,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=211, PETRI_TRANSITIONS=232} [2022-10-17 10:12:34,041 INFO L287 CegarLoopForPetriNet]: 208 programPoint places, 3 predicate places. [2022-10-17 10:12:34,041 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 232 transitions, 766 flow [2022-10-17 10:12:34,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:34,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:34,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:12:34,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-10-17 10:12:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash -149471773, now seen corresponding path program 1 times [2022-10-17 10:12:34,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:34,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521135588] [2022-10-17 10:12:34,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:34,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:34,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:34,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:34,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521135588] [2022-10-17 10:12:34,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521135588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:34,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:34,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:12:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727645415] [2022-10-17 10:12:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:34,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:12:34,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:34,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:12:34,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:12:34,112 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 213 [2022-10-17 10:12:34,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 232 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:34,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 213 [2022-10-17 10:12:34,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:41,483 INFO L130 PetriNetUnfolder]: 12778/55771 cut-off events. [2022-10-17 10:12:41,483 INFO L131 PetriNetUnfolder]: For 8300/8589 co-relation queries the response was YES. [2022-10-17 10:12:41,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84518 conditions, 55771 events. 12778/55771 cut-off events. For 8300/8589 co-relation queries the response was YES. Maximal size of possible extension queue 1345. Compared 807150 event pairs, 4247 based on Foata normal form. 8/45399 useless extension candidates. Maximal degree in co-relation 84503. Up to 11992 conditions per place. [2022-10-17 10:12:42,145 INFO L137 encePairwiseOnDemand]: 192/213 looper letters, 106 selfloop transitions, 15 changer transitions 0/289 dead transitions. [2022-10-17 10:12:42,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 289 transitions, 1343 flow [2022-10-17 10:12:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:12:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:12:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2022-10-17 10:12:42,148 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8309859154929577 [2022-10-17 10:12:42,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2022-10-17 10:12:42,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2022-10-17 10:12:42,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:12:42,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2022-10-17 10:12:42,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,154 INFO L175 Difference]: Start difference. First operand has 211 places, 232 transitions, 766 flow. Second operand 3 states and 531 transitions. [2022-10-17 10:12:42,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 289 transitions, 1343 flow [2022-10-17 10:12:42,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 289 transitions, 1343 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:12:42,187 INFO L231 Difference]: Finished difference. Result has 215 places, 247 transitions, 898 flow [2022-10-17 10:12:42,188 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=215, PETRI_TRANSITIONS=247} [2022-10-17 10:12:42,191 INFO L287 CegarLoopForPetriNet]: 208 programPoint places, 7 predicate places. [2022-10-17 10:12:42,192 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 247 transitions, 898 flow [2022-10-17 10:12:42,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:12:42,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:42,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:12:42,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-10-17 10:12:42,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1683282312, now seen corresponding path program 1 times [2022-10-17 10:12:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:42,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697460540] [2022-10-17 10:12:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:42,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:42,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:42,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697460540] [2022-10-17 10:12:42,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697460540] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:42,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:42,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:12:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867357123] [2022-10-17 10:12:42,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:42,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:12:42,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:42,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:12:42,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:12:42,256 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 213 [2022-10-17 10:12:42,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 247 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:12:42,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 213 [2022-10-17 10:12:42,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:12:55,965 INFO L130 PetriNetUnfolder]: 26287/96858 cut-off events. [2022-10-17 10:12:55,965 INFO L131 PetriNetUnfolder]: For 14905/15337 co-relation queries the response was YES. [2022-10-17 10:12:56,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162016 conditions, 96858 events. 26287/96858 cut-off events. For 14905/15337 co-relation queries the response was YES. Maximal size of possible extension queue 2387. Compared 1454313 event pairs, 16783 based on Foata normal form. 0/79308 useless extension candidates. Maximal degree in co-relation 161999. Up to 32322 conditions per place.