./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:37:22,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:37:22,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:37:22,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:37:22,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:37:22,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:37:22,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:37:22,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:37:22,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:37:22,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:37:22,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:37:22,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:37:22,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:37:22,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:37:22,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:37:22,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:37:22,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:37:22,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:37:22,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:37:22,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:37:22,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:37:22,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:37:22,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:37:22,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:37:22,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:37:22,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:37:22,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:37:22,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:37:22,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:37:22,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:37:22,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:37:22,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:37:22,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:37:22,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:37:22,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:37:22,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:37:22,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:37:22,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:37:22,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:37:22,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:37:22,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:37:22,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:37:22,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:37:22,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:37:22,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:37:22,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:37:22,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:37:22,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:37:22,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:37:22,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:37:22,911 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:37:22,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:37:22,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:37:22,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:37:22,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:37:22,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:37:22,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:37:22,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:37:22,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:37:22,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:37:22,915 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:37:22,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:37:22,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:37:22,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:37:22,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:37:22,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:37:22,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:37:22,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:37:22,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:22,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:37:22,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:37:22,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:37:22,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:37:22,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:37:22,919 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:37:22,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:37:22,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:37:22,919 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_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-11-20 10:37:23,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:37:23,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:37:23,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:37:23,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:37:23,234 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:37:23,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-20 10:37:26,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:37:26,595 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:37:26,595 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-20 10:37:26,611 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/data/de3390244/8ff74da589b14400af061259409ae8d7/FLAG60fa7d630 [2022-11-20 10:37:26,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/data/de3390244/8ff74da589b14400af061259409ae8d7 [2022-11-20 10:37:26,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:37:26,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:37:26,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:26,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:37:26,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:37:26,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:26" (1/1) ... [2022-11-20 10:37:26,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e0c19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:26, skipping insertion in model container [2022-11-20 10:37:26,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:26" (1/1) ... [2022-11-20 10:37:26,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:37:26,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:37:27,129 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-20 10:37:27,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:27,153 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:37:27,216 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-20 10:37:27,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:27,271 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:37:27,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27 WrapperNode [2022-11-20 10:37:27,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:27,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:27,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:37:27,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:37:27,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,343 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-11-20 10:37:27,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:27,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:37:27,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:37:27,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:37:27,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:37:27,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:37:27,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:37:27,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:37:27,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (1/1) ... [2022-11-20 10:37:27,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:27,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:27,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:37:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:37:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:37:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-20 10:37:27,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-20 10:37:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 10:37:27,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 10:37:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:37:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:37:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:37:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:37:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:37:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:37:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:37:27,508 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:37:27,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:37:27,713 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:37:28,459 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:28,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:28,891 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:37:28,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:28 BoogieIcfgContainer [2022-11-20 10:37:28,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:28,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:28,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:28,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:28,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:37:26" (1/3) ... [2022-11-20 10:37:28,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7aac5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:28, skipping insertion in model container [2022-11-20 10:37:28,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:27" (2/3) ... [2022-11-20 10:37:28,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7aac5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:28, skipping insertion in model container [2022-11-20 10:37:28,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:28" (3/3) ... [2022-11-20 10:37:28,905 INFO L112 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-11-20 10:37:28,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:37:28,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:28,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-20 10:37:28,929 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:37:29,043 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:37:29,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-11-20 10:37:29,168 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-20 10:37:29,168 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:37:29,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 316 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-11-20 10:37:29,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 226 flow [2022-11-20 10:37:29,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 222 flow [2022-11-20 10:37:29,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:29,198 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;@2a6dbcd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:29,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-20 10:37:29,206 INFO L130 PetriNetUnfolder]: 2/31 cut-off events. [2022-11-20 10:37:29,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:37:29,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:29,207 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:29,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 10:37:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2138361761, now seen corresponding path program 1 times [2022-11-20 10:37:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:29,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39932042] [2022-11-20 10:37:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:29,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:29,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:29,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39932042] [2022-11-20 10:37:29,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39932042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:29,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:29,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 10:37:29,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206055172] [2022-11-20 10:37:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:29,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:37:29,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:37:29,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:37:29,815 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 108 [2022-11-20 10:37:29,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 222 flow. Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:29,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:29,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 108 [2022-11-20 10:37:29,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:29,967 INFO L130 PetriNetUnfolder]: 54/203 cut-off events. [2022-11-20 10:37:29,967 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 10:37:29,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 203 events. 54/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 737 event pairs, 35 based on Foata normal form. 74/249 useless extension candidates. Maximal degree in co-relation 281. Up to 95 conditions per place. [2022-11-20 10:37:29,975 INFO L137 encePairwiseOnDemand]: 79/108 looper letters, 14 selfloop transitions, 0 changer transitions 0/70 dead transitions. [2022-11-20 10:37:29,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 70 transitions, 176 flow [2022-11-20 10:37:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:37:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 10:37:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-11-20 10:37:29,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-20 10:37:29,996 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-11-20 10:37:29,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-11-20 10:37:29,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:30,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-11-20 10:37:30,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,013 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,015 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 222 flow. Second operand 2 states and 171 transitions. [2022-11-20 10:37:30,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 70 transitions, 176 flow [2022-11-20 10:37:30,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:37:30,024 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 147 flow [2022-11-20 10:37:30,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=147, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2022-11-20 10:37:30,032 INFO L288 CegarLoopForPetriNet]: 107 programPoint places, -34 predicate places. [2022-11-20 10:37:30,032 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 147 flow [2022-11-20 10:37:30,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:30,034 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] [2022-11-20 10:37:30,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:37:30,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 10:37:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1971315108, now seen corresponding path program 1 times [2022-11-20 10:37:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:30,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936252799] [2022-11-20 10:37:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:30,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:30,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936252799] [2022-11-20 10:37:30,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936252799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:30,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:30,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:30,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481214405] [2022-11-20 10:37:30,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:30,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:30,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:30,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:30,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 108 [2022-11-20 10:37:30,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:30,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 108 [2022-11-20 10:37:30,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:30,308 INFO L130 PetriNetUnfolder]: 146/428 cut-off events. [2022-11-20 10:37:30,308 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 10:37:30,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 428 events. 146/428 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2109 event pairs, 38 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 733. Up to 148 conditions per place. [2022-11-20 10:37:30,314 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 29 selfloop transitions, 8 changer transitions 0/87 dead transitions. [2022-11-20 10:37:30,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 87 transitions, 258 flow [2022-11-20 10:37:30,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2022-11-20 10:37:30,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2022-11-20 10:37:30,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2022-11-20 10:37:30,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2022-11-20 10:37:30,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:30,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2022-11-20 10:37:30,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,329 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 147 flow. Second operand 3 states and 213 transitions. [2022-11-20 10:37:30,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 87 transitions, 258 flow [2022-11-20 10:37:30,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 87 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:37:30,333 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 215 flow [2022-11-20 10:37:30,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2022-11-20 10:37:30,334 INFO L288 CegarLoopForPetriNet]: 107 programPoint places, -30 predicate places. [2022-11-20 10:37:30,334 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 215 flow [2022-11-20 10:37:30,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:30,336 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:30,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:37:30,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-20 10:37:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -440856262, now seen corresponding path program 1 times [2022-11-20 10:37:30,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:30,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7920327] [2022-11-20 10:37:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:30,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:37:30,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:37:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:37:30,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:37:30,433 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:37:30,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-11-20 10:37:30,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-11-20 10:37:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-11-20 10:37:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-11-20 10:37:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-11-20 10:37:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-11-20 10:37:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-11-20 10:37:30,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-11-20 10:37:30,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-11-20 10:37:30,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-11-20 10:37:30,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-11-20 10:37:30,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-11-20 10:37:30,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-11-20 10:37:30,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-11-20 10:37:30,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-11-20 10:37:30,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-11-20 10:37:30,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-11-20 10:37:30,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-11-20 10:37:30,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-11-20 10:37:30,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-11-20 10:37:30,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-11-20 10:37:30,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-11-20 10:37:30,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-11-20 10:37:30,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-11-20 10:37:30,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-11-20 10:37:30,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-11-20 10:37:30,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-11-20 10:37:30,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-11-20 10:37:30,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-11-20 10:37:30,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-11-20 10:37:30,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-11-20 10:37:30,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-11-20 10:37:30,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-11-20 10:37:30,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-11-20 10:37:30,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-11-20 10:37:30,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-11-20 10:37:30,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-11-20 10:37:30,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-11-20 10:37:30,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-11-20 10:37:30,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-11-20 10:37:30,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-11-20 10:37:30,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-11-20 10:37:30,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-11-20 10:37:30,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-11-20 10:37:30,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-11-20 10:37:30,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-11-20 10:37:30,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-11-20 10:37:30,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-11-20 10:37:30,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-11-20 10:37:30,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-11-20 10:37:30,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-11-20 10:37:30,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-11-20 10:37:30,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-11-20 10:37:30,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-11-20 10:37:30,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:37:30,457 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 10:37:30,460 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:37:30,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 10:37:30,579 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:37:30,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 176 transitions, 376 flow [2022-11-20 10:37:30,614 INFO L130 PetriNetUnfolder]: 9/168 cut-off events. [2022-11-20 10:37:30,615 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:37:30,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2022-11-20 10:37:30,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 176 transitions, 376 flow [2022-11-20 10:37:30,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 303 flow [2022-11-20 10:37:30,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:30,622 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;@2a6dbcd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:30,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-11-20 10:37:30,626 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-20 10:37:30,626 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:37:30,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:30,627 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:30,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-20 10:37:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1504932562, now seen corresponding path program 1 times [2022-11-20 10:37:30,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:30,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876427589] [2022-11-20 10:37:30,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:30,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:30,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876427589] [2022-11-20 10:37:30,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876427589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:30,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:30,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 10:37:30,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78694234] [2022-11-20 10:37:30,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:30,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:37:30,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:30,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:37:30,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:37:30,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 176 [2022-11-20 10:37:30,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 144 transitions, 303 flow. Second operand has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:30,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:30,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 176 [2022-11-20 10:37:30,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:31,337 INFO L130 PetriNetUnfolder]: 882/1660 cut-off events. [2022-11-20 10:37:31,337 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-11-20 10:37:31,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3076 conditions, 1660 events. 882/1660 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10439 event pairs, 719 based on Foata normal form. 718/2326 useless extension candidates. Maximal degree in co-relation 3044. Up to 1265 conditions per place. [2022-11-20 10:37:31,357 INFO L137 encePairwiseOnDemand]: 131/176 looper letters, 23 selfloop transitions, 0 changer transitions 0/91 dead transitions. [2022-11-20 10:37:31,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 243 flow [2022-11-20 10:37:31,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:37:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 10:37:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 248 transitions. [2022-11-20 10:37:31,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2022-11-20 10:37:31,360 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 248 transitions. [2022-11-20 10:37:31,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 248 transitions. [2022-11-20 10:37:31,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:31,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 248 transitions. [2022-11-20 10:37:31,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:31,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:31,365 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:31,365 INFO L175 Difference]: Start difference. First operand has 145 places, 144 transitions, 303 flow. Second operand 2 states and 248 transitions. [2022-11-20 10:37:31,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 243 flow [2022-11-20 10:37:31,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 91 transitions, 240 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-20 10:37:31,369 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 194 flow [2022-11-20 10:37:31,369 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2022-11-20 10:37:31,370 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -50 predicate places. [2022-11-20 10:37:31,370 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 194 flow [2022-11-20 10:37:31,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:31,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:31,371 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] [2022-11-20 10:37:31,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:37:31,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-20 10:37:31,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1163749611, now seen corresponding path program 1 times [2022-11-20 10:37:31,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:31,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421970862] [2022-11-20 10:37:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:31,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421970862] [2022-11-20 10:37:31,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421970862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:31,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825717056] [2022-11-20 10:37:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:31,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:31,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2022-11-20 10:37:31,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:31,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:31,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2022-11-20 10:37:31,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:32,738 INFO L130 PetriNetUnfolder]: 3025/5723 cut-off events. [2022-11-20 10:37:32,739 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2022-11-20 10:37:32,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10601 conditions, 5723 events. 3025/5723 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 44987 event pairs, 910 based on Foata normal form. 0/5236 useless extension candidates. Maximal degree in co-relation 10596. Up to 2663 conditions per place. [2022-11-20 10:37:32,801 INFO L137 encePairwiseOnDemand]: 162/176 looper letters, 43 selfloop transitions, 12 changer transitions 0/117 dead transitions. [2022-11-20 10:37:32,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 364 flow [2022-11-20 10:37:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2022-11-20 10:37:32,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2022-11-20 10:37:32,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2022-11-20 10:37:32,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2022-11-20 10:37:32,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:32,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2022-11-20 10:37:32,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-20 10:37:32,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:32,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:32,808 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 194 flow. Second operand 3 states and 291 transitions. [2022-11-20 10:37:32,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 364 flow [2022-11-20 10:37:32,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 117 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:37:32,813 INFO L231 Difference]: Finished difference. Result has 99 places, 103 transitions, 294 flow [2022-11-20 10:37:32,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=99, PETRI_TRANSITIONS=103} [2022-11-20 10:37:32,815 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -46 predicate places. [2022-11-20 10:37:32,815 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 103 transitions, 294 flow [2022-11-20 10:37:32,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:32,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:32,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:32,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:37:32,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-20 10:37:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash -172869746, now seen corresponding path program 1 times [2022-11-20 10:37:32,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:32,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702870702] [2022-11-20 10:37:32,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:33,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:33,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702870702] [2022-11-20 10:37:33,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702870702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:33,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:33,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:37:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816923983] [2022-11-20 10:37:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:33,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:37:33,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:37:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:37:33,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 176 [2022-11-20 10:37:33,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:33,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:33,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 176 [2022-11-20 10:37:33,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:38,145 INFO L130 PetriNetUnfolder]: 10195/21397 cut-off events. [2022-11-20 10:37:38,145 INFO L131 PetriNetUnfolder]: For 8794/8794 co-relation queries the response was YES. [2022-11-20 10:37:38,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47510 conditions, 21397 events. 10195/21397 cut-off events. For 8794/8794 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 213873 event pairs, 1094 based on Foata normal form. 724/20861 useless extension candidates. Maximal degree in co-relation 47503. Up to 6701 conditions per place. [2022-11-20 10:37:38,403 INFO L137 encePairwiseOnDemand]: 159/176 looper letters, 104 selfloop transitions, 34 changer transitions 0/196 dead transitions. [2022-11-20 10:37:38,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 196 transitions, 924 flow [2022-11-20 10:37:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:37:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 10:37:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 711 transitions. [2022-11-20 10:37:38,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5049715909090909 [2022-11-20 10:37:38,409 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 711 transitions. [2022-11-20 10:37:38,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 711 transitions. [2022-11-20 10:37:38,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:38,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 711 transitions. [2022-11-20 10:37:38,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.875) internal successors, (711), 8 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:38,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:38,423 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:38,423 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 294 flow. Second operand 8 states and 711 transitions. [2022-11-20 10:37:38,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 196 transitions, 924 flow [2022-11-20 10:37:38,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 196 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:37:38,481 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 456 flow [2022-11-20 10:37:38,481 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=456, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-20 10:37:38,485 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -37 predicate places. [2022-11-20 10:37:38,485 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 456 flow [2022-11-20 10:37:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:38,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:38,486 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:38,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:37:38,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-20 10:37:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1639627633, now seen corresponding path program 1 times [2022-11-20 10:37:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982444294] [2022-11-20 10:37:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:38,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:37:38,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:37:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:37:38,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:37:38,537 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:37:38,537 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-11-20 10:37:38,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-11-20 10:37:38,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-11-20 10:37:38,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-11-20 10:37:38,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-11-20 10:37:38,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-11-20 10:37:38,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-11-20 10:37:38,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-11-20 10:37:38,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-11-20 10:37:38,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-11-20 10:37:38,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-11-20 10:37:38,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-11-20 10:37:38,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-11-20 10:37:38,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-11-20 10:37:38,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-11-20 10:37:38,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-11-20 10:37:38,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-11-20 10:37:38,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-11-20 10:37:38,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-11-20 10:37:38,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-11-20 10:37:38,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-11-20 10:37:38,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-11-20 10:37:38,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-11-20 10:37:38,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-11-20 10:37:38,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-11-20 10:37:38,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-11-20 10:37:38,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-11-20 10:37:38,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 80 remaining) [2022-11-20 10:37:38,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 80 remaining) [2022-11-20 10:37:38,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-11-20 10:37:38,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-11-20 10:37:38,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-11-20 10:37:38,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-11-20 10:37:38,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-11-20 10:37:38,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-11-20 10:37:38,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-11-20 10:37:38,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-11-20 10:37:38,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-11-20 10:37:38,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-11-20 10:37:38,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-11-20 10:37:38,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-11-20 10:37:38,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-11-20 10:37:38,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-11-20 10:37:38,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-11-20 10:37:38,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-11-20 10:37:38,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 80 remaining) [2022-11-20 10:37:38,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 80 remaining) [2022-11-20 10:37:38,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (32 of 80 remaining) [2022-11-20 10:37:38,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-11-20 10:37:38,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-11-20 10:37:38,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-11-20 10:37:38,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-11-20 10:37:38,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-11-20 10:37:38,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-11-20 10:37:38,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-11-20 10:37:38,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-11-20 10:37:38,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-11-20 10:37:38,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-11-20 10:37:38,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-11-20 10:37:38,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-11-20 10:37:38,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-11-20 10:37:38,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-11-20 10:37:38,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-11-20 10:37:38,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-11-20 10:37:38,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-11-20 10:37:38,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-11-20 10:37:38,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-11-20 10:37:38,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-11-20 10:37:38,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-11-20 10:37:38,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-11-20 10:37:38,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-11-20 10:37:38,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-11-20 10:37:38,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-11-20 10:37:38,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-11-20 10:37:38,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-11-20 10:37:38,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-11-20 10:37:38,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-11-20 10:37:38,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-11-20 10:37:38,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-11-20 10:37:38,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-11-20 10:37:38,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:37:38,555 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 10:37:38,561 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-20 10:37:38,561 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:37:38,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:37:38 BasicIcfg [2022-11-20 10:37:38,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:37:38,648 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:37:38,648 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:37:38,648 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:37:38,649 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:28" (3/4) ... [2022-11-20 10:37:38,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:37:38,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:37:38,653 INFO L158 Benchmark]: Toolchain (without parser) took 12013.27ms. Allocated memory was 157.3MB in the beginning and 627.0MB in the end (delta: 469.8MB). Free memory was 108.5MB in the beginning and 150.3MB in the end (delta: -41.8MB). Peak memory consumption was 429.7MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,654 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:38,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.64ms. Allocated memory is still 157.3MB. Free memory was 108.5MB in the beginning and 88.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.04ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 84.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,655 INFO L158 Benchmark]: Boogie Preprocessor took 50.02ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 81.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,657 INFO L158 Benchmark]: RCFGBuilder took 1499.79ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 81.2MB in the beginning and 139.9MB in the end (delta: -58.7MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,658 INFO L158 Benchmark]: TraceAbstraction took 9749.13ms. Allocated memory was 226.5MB in the beginning and 627.0MB in the end (delta: 400.6MB). Free memory was 139.9MB in the beginning and 150.3MB in the end (delta: -10.3MB). Peak memory consumption was 389.2MB. Max. memory is 16.1GB. [2022-11-20 10:37:38,658 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 627.0MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:38,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.64ms. Allocated memory is still 157.3MB. Free memory was 108.5MB in the beginning and 88.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.04ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 84.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.02ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 81.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1499.79ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 81.2MB in the beginning and 139.9MB in the end (delta: -58.7MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9749.13ms. Allocated memory was 226.5MB in the beginning and 627.0MB in the end (delta: 400.6MB). Free memory was 139.9MB in the beginning and 150.3MB in the end (delta: -10.3MB). Peak memory consumption was 389.2MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 627.0MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int count = 0; VAL [count=0] [L708] 0 int mutexa = 0; VAL [count=0, mutexa={3:0}] [L709] 0 int mutexb = 0; VAL [count=0, mutexa={3:0}, mutexb={4:0}] [L747] 0 pthread_t t; VAL [count=0, mutexa={3:0}, mutexb={4:0}, t={5:0}] [L748] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr1, 0)=6, t={5:0}] [L726] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L728] CALL 1 __VERIFIER_atomic_acquire(&mutexa) [L692] EXPR 1 \read(*m) [L692] EXPR 1 *m==0 [L692] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(*m==0) [L693] 1 *m = 1 [L728] RET 1 __VERIFIER_atomic_acquire(&mutexa) [L749] COND TRUE 0 1 VAL [count=0, mutexa={3:0}, mutexb={4:0}, t={5:0}] [L751] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr2, 0)=7, t={5:0}] [L739] COND FALSE 2 !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L742] CALL 2 my_thread2() [L719] CALL 2 __VERIFIER_atomic_acquire(&mutexb) [L692] EXPR 2 \read(*m) [L692] EXPR 2 *m==0 [L692] CALL 2 assume_abort_if_not(*m==0) [L4] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(*m==0) [L693] 2 *m = 1 [L719] RET 2 __VERIFIER_atomic_acquire(&mutexb) [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L720] CALL 2 __VERIFIER_atomic_dec() [L706] 2 count-- [L720] RET 2 __VERIFIER_atomic_dec() [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=-1, mutexa={3:0}, mutexb={4:0}] Now there is a data race on ~count~0 between C: count-- [706] and C: count >= -1 [729] - UnprovableResult [Line: 692]: 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: 692]: 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: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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: 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: 692]: 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: 692]: 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: 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: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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: 751]: 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: 748]: 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, 167 locations, 54 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 5 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 230 locations, 80 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: 8.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 13 mSDtfsCounter, 301 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 1.2s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-20 10:37:38,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4f42e6-845b-4d46-88f1-d223b64a9a5f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE