./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/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_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/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_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/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 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 --- 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 20:36:56,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:36:56,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:36:56,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:36:56,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:36:56,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:36:56,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:36:56,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:36:56,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:36:56,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:36:56,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:36:56,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:36:56,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:36:56,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:36:56,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:36:56,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:36:56,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:36:56,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:36:56,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:36:56,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:36:56,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:36:56,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:36:56,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:36:56,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:36:56,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:36:56,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:36:56,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:36:56,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:36:56,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:36:56,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:36:56,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:36:56,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:36:56,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:36:56,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:36:56,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:36:56,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:36:56,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:36:56,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:36:56,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:36:56,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:36:56,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:36:56,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:36:56,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:36:56,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:36:56,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:36:56,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:36:56,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:36:56,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:36:56,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:36:56,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:36:56,924 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:36:56,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:36:56,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:36:56,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:36:56,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:36:56,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:36:56,926 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:36:56,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:36:56,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:36:56,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:36:56,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:36:56,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:36:56,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:36:56,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:36:56,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:36:56,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:36:56,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:36:56,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:36:56,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:36:56,930 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:36:56,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:36:56,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:36:56,931 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_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 [2022-11-18 20:36:57,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:36:57,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:36:57,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:36:57,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:36:57,256 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:36:57,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2022-11-18 20:36:57,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/data/bb93da370/61377fd004344ecf8de2e9800f82f1bf/FLAGffd21fa1f [2022-11-18 20:36:57,930 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:36:57,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2022-11-18 20:36:57,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/data/bb93da370/61377fd004344ecf8de2e9800f82f1bf/FLAGffd21fa1f [2022-11-18 20:36:58,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/data/bb93da370/61377fd004344ecf8de2e9800f82f1bf [2022-11-18 20:36:58,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:36:58,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:36:58,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:36:58,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:36:58,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:36:58,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72261e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58, skipping insertion in model container [2022-11-18 20:36:58,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:36:58,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:36:58,659 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_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] [2022-11-18 20:36:58,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:36:58,694 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:36:58,732 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_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] [2022-11-18 20:36:58,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:36:58,764 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:36:58,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58 WrapperNode [2022-11-18 20:36:58,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:36:58,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:36:58,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:36:58,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:36:58,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,819 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-18 20:36:58,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:36:58,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:36:58,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:36:58,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:36:58,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:36:58,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:36:58,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:36:58,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:36:58,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (1/1) ... [2022-11-18 20:36:58,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:36:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:58,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:36:58,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:36:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-18 20:36:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-18 20:36:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-18 20:36:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-18 20:36:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:36:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:36:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:36:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:36:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:36:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:36:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:36:58,959 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 20:36:59,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:36:59,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:36:59,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:36:59,318 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:36:59,327 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:36:59,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:59 BoogieIcfgContainer [2022-11-18 20:36:59,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:36:59,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:36:59,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:36:59,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:36:59,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:36:58" (1/3) ... [2022-11-18 20:36:59,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121960a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:36:59, skipping insertion in model container [2022-11-18 20:36:59,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:36:58" (2/3) ... [2022-11-18 20:36:59,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121960a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:36:59, skipping insertion in model container [2022-11-18 20:36:59,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:59" (3/3) ... [2022-11-18 20:36:59,351 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2022-11-18 20:36:59,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:36:59,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:36:59,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 20:36:59,378 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:36:59,469 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:36:59,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 114 transitions, 238 flow [2022-11-18 20:36:59,571 INFO L130 PetriNetUnfolder]: 5/130 cut-off events. [2022-11-18 20:36:59,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:36:59,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 130 events. 5/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 173 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 95. Up to 4 conditions per place. [2022-11-18 20:36:59,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 114 transitions, 238 flow [2022-11-18 20:36:59,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 234 flow [2022-11-18 20:36:59,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:36:59,602 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;@567dbbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:36:59,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-18 20:36:59,611 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 20:36:59,615 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:36:59,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:59,617 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] [2022-11-18 20:36:59,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:36:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:59,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2109176308, now seen corresponding path program 1 times [2022-11-18 20:36:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:59,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651396111] [2022-11-18 20:36:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:59,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:59,857 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 20:36:59,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:59,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651396111] [2022-11-18 20:36:59,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651396111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:59,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:59,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:36:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128098906] [2022-11-18 20:36:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:36:59,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:59,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:36:59,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:36:59,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 114 [2022-11-18 20:36:59,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 20:36:59,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:59,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 114 [2022-11-18 20:36:59,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:59,994 INFO L130 PetriNetUnfolder]: 22/203 cut-off events. [2022-11-18 20:37:00,004 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:37:00,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 203 events. 22/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 21 based on Foata normal form. 28/196 useless extension candidates. Maximal degree in co-relation 210. Up to 57 conditions per place. [2022-11-18 20:37:00,008 INFO L137 encePairwiseOnDemand]: 108/114 looper letters, 14 selfloop transitions, 2 changer transitions 1/108 dead transitions. [2022-11-18 20:37:00,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 108 transitions, 256 flow [2022-11-18 20:37:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:37:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2022-11-18 20:37:00,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8742690058479532 [2022-11-18 20:37:00,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2022-11-18 20:37:00,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2022-11-18 20:37:00,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:00,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2022-11-18 20:37:00,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states 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 20:37:00,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,052 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 234 flow. Second operand 3 states and 299 transitions. [2022-11-18 20:37:00,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 108 transitions, 256 flow [2022-11-18 20:37:00,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 108 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:37:00,067 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 225 flow [2022-11-18 20:37:00,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2022-11-18 20:37:00,074 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2022-11-18 20:37:00,077 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 225 flow [2022-11-18 20:37:00,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 20:37:00,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:00,078 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] [2022-11-18 20:37:00,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:37:00,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:00,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:00,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1511755711, now seen corresponding path program 1 times [2022-11-18 20:37:00,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:00,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749973960] [2022-11-18 20:37:00,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:00,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:00,237 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 20:37:00,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:00,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749973960] [2022-11-18 20:37:00,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749973960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:00,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:00,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:37:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335329548] [2022-11-18 20:37:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:00,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:37:00,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:00,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:37:00,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:37:00,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2022-11-18 20:37:00,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 20:37:00,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:00,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2022-11-18 20:37:00,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:00,324 INFO L130 PetriNetUnfolder]: 22/265 cut-off events. [2022-11-18 20:37:00,324 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:37:00,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 265 events. 22/265 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1039 event pairs, 21 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 315. Up to 63 conditions per place. [2022-11-18 20:37:00,327 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 17 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-11-18 20:37:00,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 106 transitions, 261 flow [2022-11-18 20:37:00,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:37:00,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2022-11-18 20:37:00,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2022-11-18 20:37:00,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2022-11-18 20:37:00,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2022-11-18 20:37:00,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:00,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2022-11-18 20:37:00,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states 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 20:37:00,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,336 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 225 flow. Second operand 3 states and 290 transitions. [2022-11-18 20:37:00,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 106 transitions, 261 flow [2022-11-18 20:37:00,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 106 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:37:00,340 INFO L231 Difference]: Finished difference. Result has 112 places, 106 transitions, 223 flow [2022-11-18 20:37:00,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=112, PETRI_TRANSITIONS=106} [2022-11-18 20:37:00,341 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2022-11-18 20:37:00,342 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 106 transitions, 223 flow [2022-11-18 20:37:00,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 20:37:00,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:00,342 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] [2022-11-18 20:37:00,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:37:00,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:00,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1111145419, now seen corresponding path program 1 times [2022-11-18 20:37:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:00,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576397808] [2022-11-18 20:37:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:00,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576397808] [2022-11-18 20:37:00,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576397808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:00,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:00,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:37:00,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458022777] [2022-11-18 20:37:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:00,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:37:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:00,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:37:00,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:37:00,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 114 [2022-11-18 20:37:00,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 106 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 20:37:00,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:00,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 114 [2022-11-18 20:37:00,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:00,486 INFO L130 PetriNetUnfolder]: 11/222 cut-off events. [2022-11-18 20:37:00,490 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:37:00,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 222 events. 11/222 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 773 event pairs, 10 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 233. Up to 32 conditions per place. [2022-11-18 20:37:00,499 INFO L137 encePairwiseOnDemand]: 109/114 looper letters, 11 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2022-11-18 20:37:00,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 239 flow [2022-11-18 20:37:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:00,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:37:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2022-11-18 20:37:00,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8625730994152047 [2022-11-18 20:37:00,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2022-11-18 20:37:00,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2022-11-18 20:37:00,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:00,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2022-11-18 20:37:00,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states 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 20:37:00,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,511 INFO L175 Difference]: Start difference. First operand has 112 places, 106 transitions, 223 flow. Second operand 3 states and 295 transitions. [2022-11-18 20:37:00,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 239 flow [2022-11-18 20:37:00,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 102 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:37:00,516 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 213 flow [2022-11-18 20:37:00,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-11-18 20:37:00,518 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -7 predicate places. [2022-11-18 20:37:00,518 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 213 flow [2022-11-18 20:37:00,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 20:37:00,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:00,520 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:00,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:37:00,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:00,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:00,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1102181646, now seen corresponding path program 1 times [2022-11-18 20:37:00,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:00,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31075191] [2022-11-18 20:37:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:00,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:00,663 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 20:37:00,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:00,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31075191] [2022-11-18 20:37:00,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31075191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:00,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:00,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:37:00,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688380086] [2022-11-18 20:37:00,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:00,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:37:00,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:00,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:37:00,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:37:00,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 114 [2022-11-18 20:37:00,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states 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 20:37:00,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:00,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 114 [2022-11-18 20:37:00,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:00,779 INFO L130 PetriNetUnfolder]: 16/211 cut-off events. [2022-11-18 20:37:00,780 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:37:00,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 211 events. 16/211 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 645 event pairs, 4 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 233. Up to 29 conditions per place. [2022-11-18 20:37:00,783 INFO L137 encePairwiseOnDemand]: 108/114 looper letters, 14 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2022-11-18 20:37:00,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 107 transitions, 262 flow [2022-11-18 20:37:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:37:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-18 20:37:00,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9005847953216374 [2022-11-18 20:37:00,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-18 20:37:00,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-18 20:37:00,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:00,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-18 20:37:00,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 20:37:00,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:00,800 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 213 flow. Second operand 3 states and 308 transitions. [2022-11-18 20:37:00,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 107 transitions, 262 flow [2022-11-18 20:37:00,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:37:00,805 INFO L231 Difference]: Finished difference. Result has 110 places, 104 transitions, 240 flow [2022-11-18 20:37:00,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=110, PETRI_TRANSITIONS=104} [2022-11-18 20:37:00,808 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2022-11-18 20:37:00,809 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 104 transitions, 240 flow [2022-11-18 20:37:00,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states 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 20:37:00,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:00,815 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] [2022-11-18 20:37:00,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:37:00,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash -504095292, now seen corresponding path program 1 times [2022-11-18 20:37:00,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:00,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550935721] [2022-11-18 20:37:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:00,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:00,923 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 20:37:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:00,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550935721] [2022-11-18 20:37:00,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550935721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:00,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:00,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:37:00,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82185923] [2022-11-18 20:37:00,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:00,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:37:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:00,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:37:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:37:00,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 114 [2022-11-18 20:37:00,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 104 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 20:37:00,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:00,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 114 [2022-11-18 20:37:00,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:00,996 INFO L130 PetriNetUnfolder]: 20/238 cut-off events. [2022-11-18 20:37:00,996 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-18 20:37:00,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 238 events. 20/238 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 810 event pairs, 8 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 314. Up to 45 conditions per place. [2022-11-18 20:37:00,998 INFO L137 encePairwiseOnDemand]: 109/114 looper letters, 19 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2022-11-18 20:37:00,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 110 transitions, 310 flow [2022-11-18 20:37:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:37:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:37:01,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2022-11-18 20:37:01,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8830409356725146 [2022-11-18 20:37:01,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2022-11-18 20:37:01,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2022-11-18 20:37:01,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:01,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2022-11-18 20:37:01,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states 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 20:37:01,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:01,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:37:01,003 INFO L175 Difference]: Start difference. First operand has 110 places, 104 transitions, 240 flow. Second operand 3 states and 302 transitions. [2022-11-18 20:37:01,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 110 transitions, 310 flow [2022-11-18 20:37:01,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 110 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:37:01,007 INFO L231 Difference]: Finished difference. Result has 112 places, 107 transitions, 264 flow [2022-11-18 20:37:01,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=112, PETRI_TRANSITIONS=107} [2022-11-18 20:37:01,008 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2022-11-18 20:37:01,008 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 264 flow [2022-11-18 20:37:01,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 20:37:01,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:01,008 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] [2022-11-18 20:37:01,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:37:01,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:01,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash 15130697, now seen corresponding path program 1 times [2022-11-18 20:37:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:01,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817467244] [2022-11-18 20:37:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:01,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:01,160 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 20:37:01,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:01,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817467244] [2022-11-18 20:37:01,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817467244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:01,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:01,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:37:01,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588744329] [2022-11-18 20:37:01,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:01,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:37:01,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:01,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:37:01,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:37:01,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 114 [2022-11-18 20:37:01,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 20:37:01,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:01,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 114 [2022-11-18 20:37:01,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:01,231 INFO L130 PetriNetUnfolder]: 4/196 cut-off events. [2022-11-18 20:37:01,231 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 20:37:01,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 196 events. 4/196 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 540 event pairs, 1 based on Foata normal form. 1/185 useless extension candidates. Maximal degree in co-relation 228. Up to 14 conditions per place. [2022-11-18 20:37:01,233 INFO L137 encePairwiseOnDemand]: 110/114 looper letters, 11 selfloop transitions, 0 changer transitions 4/110 dead transitions. [2022-11-18 20:37:01,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 110 transitions, 300 flow [2022-11-18 20:37:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:37:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:37:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2022-11-18 20:37:01,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8789473684210526 [2022-11-18 20:37:01,235 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 501 transitions. [2022-11-18 20:37:01,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 501 transitions. [2022-11-18 20:37:01,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:01,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 501 transitions. [2022-11-18 20:37:01,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:01,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:01,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 20:37:01,241 INFO L175 Difference]: Start difference. First operand has 112 places, 107 transitions, 264 flow. Second operand 5 states and 501 transitions. [2022-11-18 20:37:01,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 110 transitions, 300 flow [2022-11-18 20:37:01,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 110 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:37:01,246 INFO L231 Difference]: Finished difference. Result has 117 places, 106 transitions, 260 flow [2022-11-18 20:37:01,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=117, PETRI_TRANSITIONS=106} [2022-11-18 20:37:01,248 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, 2 predicate places. [2022-11-18 20:37:01,249 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 106 transitions, 260 flow [2022-11-18 20:37:01,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 20:37:01,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:01,249 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] [2022-11-18 20:37:01,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:37:01,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:37:01,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:01,251 INFO L85 PathProgramCache]: Analyzing trace with hash 748380215, now seen corresponding path program 1 times [2022-11-18 20:37:01,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:01,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646812128] [2022-11-18 20:37:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:01,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:37:01,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:37:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:37:01,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:37:01,354 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:37:01,355 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-18 20:37:01,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-18 20:37:01,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-18 20:37:01,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-18 20:37:01,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-18 20:37:01,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-18 20:37:01,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2022-11-18 20:37:01,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-18 20:37:01,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-18 20:37:01,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-18 20:37:01,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2022-11-18 20:37:01,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2022-11-18 20:37:01,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-18 20:37:01,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-18 20:37:01,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-18 20:37:01,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:37:01,366 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:01,378 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:37:01,378 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:37:01,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:37:01 BasicIcfg [2022-11-18 20:37:01,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:37:01,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:37:01,474 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:37:01,474 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:37:01,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:59" (3/4) ... [2022-11-18 20:37:01,477 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:37:01,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:37:01,482 INFO L158 Benchmark]: Toolchain (without parser) took 3236.78ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 83.9MB in the beginning and 112.9MB in the end (delta: -28.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:37:01,485 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:37:01,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.74ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.9MB in the end (delta: 799.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:37:01,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.90ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 80.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:37:01,489 INFO L158 Benchmark]: Boogie Preprocessor took 25.95ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:37:01,492 INFO L158 Benchmark]: RCFGBuilder took 483.01ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:37:01,492 INFO L158 Benchmark]: TraceAbstraction took 2140.97ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 112.9MB in the end (delta: -48.0MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2022-11-18 20:37:01,492 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 144.7MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:37:01,496 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 92.3MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.74ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.9MB in the end (delta: 799.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.90ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 80.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.95ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.01ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2140.97ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 112.9MB in the end (delta: -48.0MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 144.7MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; VAL [x=0] [L691] 0 volatile int n; VAL [n=0, x=0] [L701] 0 pthread_t t1, t2; VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L702] 0 int i; VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L703] 0 x = 0 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L704] 0 n = __VERIFIER_nondet_uint() VAL [\old(argc)=50, __VERIFIER_nondet_uint()=39, argc=50, argv={54:51}, argv={54:51}, n=39, n = __VERIFIER_nondet_uint()=53, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=39, x=0] [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, pthread_create(&t1, 0, thr1, 0)=6, t1={5:0}, t2={3:0}, x=0] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L707] 0 i = 0 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] 0 i < n VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] COND TRUE 0 i < n VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=50, arg={0:0}, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, pthread_create(&t2, 0, thr2, 0)=7, t1={5:0}, t2={3:0}, x=0] [L696] 2 int t; VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=0] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=52] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=52] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x <= n [693] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 143 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 64 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=5, InterpolantAutomatonStates: 20, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:37:01,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1c74b6-5563-4827-b4c1-08d6015bf3ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE