./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8 --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 422f1da6dfd893adc51c26673030b1629855d79d0a8262719af25760298c9d39 --- 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-2329fc7 [2022-12-13 16:32:26,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:32:26,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:32:26,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:32:26,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:32:26,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:32:26,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:32:26,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:32:26,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:32:26,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:32:26,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:32:26,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:32:26,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:32:26,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:32:26,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:32:26,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:32:26,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:32:26,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:32:26,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:32:26,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:32:26,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:32:26,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:32:26,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:32:26,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:32:26,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:32:26,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:32:26,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:32:26,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:32:26,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:32:26,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:32:26,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:32:26,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:32:26,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:32:26,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:32:26,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:32:26,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:32:26,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:32:26,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:32:26,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:32:26,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:32:26,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:32:26,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:32:26,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:32:26,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:32:26,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:32:26,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:32:26,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:32:26,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:32:26,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:32:26,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:32:26,802 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:32:26,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:32:26,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:32:26,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:32:26,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:32:26,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:32:26,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:32:26,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:32:26,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:32:26,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:32:26,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:32:26,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:32:26,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:32:26,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:32:26,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:32:26,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:32:26,814 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:32:26,814 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422f1da6dfd893adc51c26673030b1629855d79d0a8262719af25760298c9d39 [2022-12-13 16:32:27,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:32:27,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:32:27,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:32:27,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:32:27,053 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:32:27,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i [2022-12-13 16:32:29,651 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:32:29,817 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:32:29,817 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/sv-benchmarks/c/goblint-regression/04-mutex_27-base_rc.i [2022-12-13 16:32:29,827 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/data/c397f3eba/368cf4813ac94c0d976d59249c5f8b51/FLAG38d139fd5 [2022-12-13 16:32:29,841 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/data/c397f3eba/368cf4813ac94c0d976d59249c5f8b51 [2022-12-13 16:32:29,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:32:29,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:32:29,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:32:29,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:32:29,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:32:29,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:32:29" (1/1) ... [2022-12-13 16:32:29,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d2068a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:29, skipping insertion in model container [2022-12-13 16:32:29,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:32:29" (1/1) ... [2022-12-13 16:32:29,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:32:29,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:32:30,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:32:30,312 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:32:30,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:32:30,438 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:32:30,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30 WrapperNode [2022-12-13 16:32:30,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:32:30,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:32:30,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:32:30,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:32:30,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,480 INFO L138 Inliner]: procedures = 265, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2022-12-13 16:32:30,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:32:30,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:32:30,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:32:30,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:32:30,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:32:30,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:32:30,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:32:30,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:32:30,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (1/1) ... [2022-12-13 16:32:30,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:32:30,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:32:30,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:32:30,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:32:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:32:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:32:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:32:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:32:30,568 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:32:30,667 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:32:30,668 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:32:30,814 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:32:30,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:32:30,819 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:32:30,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:32:30 BoogieIcfgContainer [2022-12-13 16:32:30,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:32:30,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:32:30,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:32:30,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:32:30,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:32:29" (1/3) ... [2022-12-13 16:32:30,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7950bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:32:30, skipping insertion in model container [2022-12-13 16:32:30,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:32:30" (2/3) ... [2022-12-13 16:32:30,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7950bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:32:30, skipping insertion in model container [2022-12-13 16:32:30,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:32:30" (3/3) ... [2022-12-13 16:32:30,827 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_27-base_rc.i [2022-12-13 16:32:30,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:32:30,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:32:30,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 16:32:30,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:32:30,887 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:32:30,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 101 transitions, 207 flow [2022-12-13 16:32:30,967 INFO L130 PetriNetUnfolder]: 1/100 cut-off events. [2022-12-13 16:32:30,968 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:32:30,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 1/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2022-12-13 16:32:30,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 101 transitions, 207 flow [2022-12-13 16:32:30,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 100 transitions, 203 flow [2022-12-13 16:32:30,980 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:32:30,990 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 100 transitions, 203 flow [2022-12-13 16:32:30,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 100 transitions, 203 flow [2022-12-13 16:32:30,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 100 transitions, 203 flow [2022-12-13 16:32:31,020 INFO L130 PetriNetUnfolder]: 1/100 cut-off events. [2022-12-13 16:32:31,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:32:31,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 1/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2022-12-13 16:32:31,023 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2022-12-13 16:32:32,661 INFO L134 LiptonReduction]: Checked pairs total: 6237 [2022-12-13 16:32:32,662 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-12-13 16:32:32,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:32:32,677 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;@3ebcf46d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:32:32,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 16:32:32,680 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 16:32:32,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:32:32,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:32,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:32:32,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 337659499, now seen corresponding path program 1 times [2022-12-13 16:32:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:32,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838239538] [2022-12-13 16:32:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:32,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:32,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838239538] [2022-12-13 16:32:32,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838239538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:32,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:32,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:32:32,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768822292] [2022-12-13 16:32:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:32,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:32,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:32,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:32,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 170 [2022-12-13 16:32:32,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:32,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:32,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 170 [2022-12-13 16:32:32,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:32,996 INFO L130 PetriNetUnfolder]: 140/407 cut-off events. [2022-12-13 16:32:32,996 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:32:32,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 407 events. 140/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2308 event pairs, 11 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 708. Up to 167 conditions per place. [2022-12-13 16:32:33,000 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 38 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2022-12-13 16:32:33,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 187 flow [2022-12-13 16:32:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2022-12-13 16:32:33,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2022-12-13 16:32:33,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2022-12-13 16:32:33,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2022-12-13 16:32:33,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2022-12-13 16:32:33,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,028 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 69 flow. Second operand 3 states and 330 transitions. [2022-12-13 16:32:33,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 187 flow [2022-12-13 16:32:33,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:32:33,033 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 90 flow [2022-12-13 16:32:33,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2022-12-13 16:32:33,038 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2022-12-13 16:32:33,038 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 90 flow [2022-12-13 16:32:33,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:32:33,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1877612175, now seen corresponding path program 1 times [2022-12-13 16:32:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375140470] [2022-12-13 16:32:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:33,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375140470] [2022-12-13 16:32:33,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375140470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:33,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:33,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:32:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568373165] [2022-12-13 16:32:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:33,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:33,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:33,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:33,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 170 [2022-12-13 16:32:33,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:33,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 170 [2022-12-13 16:32:33,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:33,191 INFO L130 PetriNetUnfolder]: 182/495 cut-off events. [2022-12-13 16:32:33,192 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-12-13 16:32:33,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 495 events. 182/495 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2852 event pairs, 110 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 928. Up to 299 conditions per place. [2022-12-13 16:32:33,197 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 33 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2022-12-13 16:32:33,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 198 flow [2022-12-13 16:32:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-12-13 16:32:33,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6215686274509804 [2022-12-13 16:32:33,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-12-13 16:32:33,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-12-13 16:32:33,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-12-13 16:32:33,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,203 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 90 flow. Second operand 3 states and 317 transitions. [2022-12-13 16:32:33,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 198 flow [2022-12-13 16:32:33,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:32:33,205 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 120 flow [2022-12-13 16:32:33,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2022-12-13 16:32:33,205 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-13 16:32:33,205 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 120 flow [2022-12-13 16:32:33,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:32:33,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash 533855176, now seen corresponding path program 1 times [2022-12-13 16:32:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897499007] [2022-12-13 16:32:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:33,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:33,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897499007] [2022-12-13 16:32:33,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897499007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:33,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:33,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:32:33,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424209857] [2022-12-13 16:32:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:33,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:33,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:33,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 170 [2022-12-13 16:32:33,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:33,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 170 [2022-12-13 16:32:33,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:33,373 INFO L130 PetriNetUnfolder]: 101/304 cut-off events. [2022-12-13 16:32:33,373 INFO L131 PetriNetUnfolder]: For 72/76 co-relation queries the response was YES. [2022-12-13 16:32:33,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 304 events. 101/304 cut-off events. For 72/76 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1598 event pairs, 59 based on Foata normal form. 5/284 useless extension candidates. Maximal degree in co-relation 612. Up to 166 conditions per place. [2022-12-13 16:32:33,375 INFO L137 encePairwiseOnDemand]: 164/170 looper letters, 33 selfloop transitions, 6 changer transitions 0/49 dead transitions. [2022-12-13 16:32:33,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 216 flow [2022-12-13 16:32:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2022-12-13 16:32:33,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6254901960784314 [2022-12-13 16:32:33,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 319 transitions. [2022-12-13 16:32:33,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 319 transitions. [2022-12-13 16:32:33,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 319 transitions. [2022-12-13 16:32:33,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,386 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 120 flow. Second operand 3 states and 319 transitions. [2022-12-13 16:32:33,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 216 flow [2022-12-13 16:32:33,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 188 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-13 16:32:33,389 INFO L231 Difference]: Finished difference. Result has 38 places, 36 transitions, 106 flow [2022-12-13 16:32:33,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2022-12-13 16:32:33,390 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-13 16:32:33,390 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 106 flow [2022-12-13 16:32:33,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,390 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:32:33,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,391 INFO L85 PathProgramCache]: Analyzing trace with hash -454694671, now seen corresponding path program 1 times [2022-12-13 16:32:33,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704285180] [2022-12-13 16:32:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:33,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:33,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704285180] [2022-12-13 16:32:33,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704285180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:33,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:33,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:32:33,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65293754] [2022-12-13 16:32:33,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:33,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:33,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:33,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:33,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:33,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 170 [2022-12-13 16:32:33,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:33,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 170 [2022-12-13 16:32:33,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:33,508 INFO L130 PetriNetUnfolder]: 150/381 cut-off events. [2022-12-13 16:32:33,508 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-12-13 16:32:33,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 381 events. 150/381 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1909 event pairs, 51 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 856. Up to 192 conditions per place. [2022-12-13 16:32:33,510 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 35 selfloop transitions, 6 changer transitions 5/51 dead transitions. [2022-12-13 16:32:33,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 248 flow [2022-12-13 16:32:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2022-12-13 16:32:33,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6098039215686275 [2022-12-13 16:32:33,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2022-12-13 16:32:33,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2022-12-13 16:32:33,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2022-12-13 16:32:33,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,516 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 106 flow. Second operand 3 states and 311 transitions. [2022-12-13 16:32:33,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 248 flow [2022-12-13 16:32:33,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:32:33,518 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 130 flow [2022-12-13 16:32:33,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2022-12-13 16:32:33,519 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2022-12-13 16:32:33,519 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 130 flow [2022-12-13 16:32:33,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,520 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:32:33,520 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1125163938, now seen corresponding path program 1 times [2022-12-13 16:32:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638315694] [2022-12-13 16:32:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:33,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:33,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638315694] [2022-12-13 16:32:33,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638315694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:33,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:33,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:32:33,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480621482] [2022-12-13 16:32:33,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:33,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:33,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:33,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:33,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 170 [2022-12-13 16:32:33,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:33,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 170 [2022-12-13 16:32:33,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:33,631 INFO L130 PetriNetUnfolder]: 126/348 cut-off events. [2022-12-13 16:32:33,631 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2022-12-13 16:32:33,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 348 events. 126/348 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1760 event pairs, 80 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 912. Up to 272 conditions per place. [2022-12-13 16:32:33,633 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 32 selfloop transitions, 3 changer transitions 2/44 dead transitions. [2022-12-13 16:32:33,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 44 transitions, 232 flow [2022-12-13 16:32:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2022-12-13 16:32:33,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.592156862745098 [2022-12-13 16:32:33,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2022-12-13 16:32:33,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2022-12-13 16:32:33,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2022-12-13 16:32:33,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,636 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 130 flow. Second operand 3 states and 302 transitions. [2022-12-13 16:32:33,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 44 transitions, 232 flow [2022-12-13 16:32:33,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:32:33,639 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 135 flow [2022-12-13 16:32:33,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2022-12-13 16:32:33,639 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2022-12-13 16:32:33,640 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 135 flow [2022-12-13 16:32:33,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,640 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:32:33,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,641 INFO L85 PathProgramCache]: Analyzing trace with hash 526633329, now seen corresponding path program 1 times [2022-12-13 16:32:33,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545462353] [2022-12-13 16:32:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:32:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:32:33,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:32:33,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545462353] [2022-12-13 16:32:33,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545462353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:32:33,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:32:33,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:32:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941590237] [2022-12-13 16:32:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:32:33,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:32:33,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:32:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:32:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:32:33,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 170 [2022-12-13 16:32:33,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:32:33,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 170 [2022-12-13 16:32:33,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:32:33,742 INFO L130 PetriNetUnfolder]: 126/348 cut-off events. [2022-12-13 16:32:33,742 INFO L131 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2022-12-13 16:32:33,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 348 events. 126/348 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1749 event pairs, 68 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 934. Up to 248 conditions per place. [2022-12-13 16:32:33,743 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 31 selfloop transitions, 3 changer transitions 5/46 dead transitions. [2022-12-13 16:32:33,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 245 flow [2022-12-13 16:32:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:32:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:32:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2022-12-13 16:32:33,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5941176470588235 [2022-12-13 16:32:33,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2022-12-13 16:32:33,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2022-12-13 16:32:33,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:32:33,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2022-12-13 16:32:33,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,747 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 135 flow. Second operand 3 states and 303 transitions. [2022-12-13 16:32:33,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 245 flow [2022-12-13 16:32:33,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:32:33,749 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 148 flow [2022-12-13 16:32:33,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-13 16:32:33,750 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2022-12-13 16:32:33,750 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 148 flow [2022-12-13 16:32:33,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:32:33,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:32:33,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:32:33,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2022-12-13 16:32:33,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:32:33,751 INFO L85 PathProgramCache]: Analyzing trace with hash 701490311, now seen corresponding path program 1 times [2022-12-13 16:32:33,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:32:33,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201923666] [2022-12-13 16:32:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:32:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:32:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:32:33,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:32:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:32:33,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:32:33,812 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:32:33,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-12-13 16:32:33,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-12-13 16:32:33,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2022-12-13 16:32:33,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-12-13 16:32:33,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-12-13 16:32:33,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:32:33,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:32:33,822 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:32:33,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:32:33,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:32:33 BasicIcfg [2022-12-13 16:32:33,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:32:33,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:32:33,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:32:33,852 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:32:33,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:32:30" (3/4) ... [2022-12-13 16:32:33,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:32:33,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:32:33,855 INFO L158 Benchmark]: Toolchain (without parser) took 4010.36ms. Allocated memory is still 174.1MB. Free memory was 119.5MB in the beginning and 52.4MB in the end (delta: 67.1MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,855 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:32:33,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.00ms. Allocated memory is still 174.1MB. Free memory was 119.4MB in the beginning and 133.0MB in the end (delta: -13.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.99ms. Allocated memory is still 174.1MB. Free memory was 133.0MB in the beginning and 130.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,857 INFO L158 Benchmark]: Boogie Preprocessor took 23.60ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 128.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,857 INFO L158 Benchmark]: RCFGBuilder took 316.11ms. Allocated memory is still 174.1MB. Free memory was 128.8MB in the beginning and 115.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,857 INFO L158 Benchmark]: TraceAbstraction took 3028.89ms. Allocated memory is still 174.1MB. Free memory was 114.1MB in the beginning and 52.4MB in the end (delta: 61.7MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-12-13 16:32:33,858 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 174.1MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:32:33,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.00ms. Allocated memory is still 174.1MB. Free memory was 119.4MB in the beginning and 133.0MB in the end (delta: -13.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.99ms. Allocated memory is still 174.1MB. Free memory was 133.0MB in the beginning and 130.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.60ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 128.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.11ms. Allocated memory is still 174.1MB. Free memory was 128.8MB in the beginning and 115.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3028.89ms. Allocated memory is still 174.1MB. Free memory was 114.1MB in the beginning and 52.4MB in the end (delta: 61.7MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 174.1MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 103 PlacesBefore, 36 PlacesAfterwards, 100 TransitionsBefore, 33 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 6237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2312, independent: 2014, independent conditional: 0, independent unconditional: 2014, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1162, independent: 1096, independent conditional: 0, independent unconditional: 1096, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2312, independent: 918, independent conditional: 0, independent unconditional: 918, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 1162, unknown conditional: 0, unknown unconditional: 1162] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int global; [L918] 0 pthread_mutex_t gm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L927] 0 void (*f)() = good; [L928] 0 pthread_mutex_t fm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, fm={2:0}, global=0, gm={1:0}, id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] 0 f = bad [L930] 1 void (*g)(); [L932] 1 g = f VAL [={-1:2}, ={-1:2}, arg={0:0}, arg={0:0}, fm={2:0}, global=0, gm={1:0}] [L934] CALL 1 g() [L920] 1 global++ VAL [={-1:2}, fm={2:0}, global=0, gm={1:0}] [L920] 1 global++ VAL [={-1:2}, fm={2:0}, global=1, global++=0, gm={1:0}] [L944] 0 printf("global: %d\n", global) VAL [={-1:2}, fm={2:0}, global=1, gm={1:0}, id={3:0}] Now there is a data race on ~global~0 between C: global++ [920] and C: printf("global: %d\n", global) [944] - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: 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: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 13 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: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 3 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=6, InterpolantAutomatonStates: 18, 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, 0.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 16:32:33,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a23d39-c41b-4349-b09f-307fa8363e09/bin/uautomizer-uyxdKDjOR8/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