./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_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_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/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_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/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_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/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 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- 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 15:20:54,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:20:54,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:20:54,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:20:54,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:20:54,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:20:54,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:20:54,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:20:54,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:20:54,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:20:54,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:20:54,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:20:54,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:20:54,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:20:54,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:20:54,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:20:54,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:20:54,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:20:54,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:20:54,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:20:54,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:20:54,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:20:54,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:20:54,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:20:54,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:20:54,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:20:54,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:20:54,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:20:54,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:20:54,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:20:54,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:20:54,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:20:54,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:20:54,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:20:54,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:20:54,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:20:54,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:20:54,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:20:54,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:20:54,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:20:54,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:20:54,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:20:54,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:20:54,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:20:54,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:20:54,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:20:54,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:20:54,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:20:54,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:20:54,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:20:54,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:20:54,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:20:54,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:20:54,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:20:54,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:20:54,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:20:54,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:20:54,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:20:54,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:20:54,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:20:54,705 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:20:54,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:20:54,705 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:20:54,705 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_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2022-12-13 15:20:54,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:20:54,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:20:54,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:20:54,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:20:54,909 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:20:54,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-12-13 15:20:57,428 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:20:57,618 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:20:57,619 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-12-13 15:20:57,633 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/data/3f47bb469/ae423d96027e4452bfd9bf8380ef3bac/FLAG6429c9f81 [2022-12-13 15:20:57,984 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/data/3f47bb469/ae423d96027e4452bfd9bf8380ef3bac [2022-12-13 15:20:57,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:20:57,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:20:57,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:20:57,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:20:57,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:20:57,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:20:57" (1/1) ... [2022-12-13 15:20:57,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4102e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:57, skipping insertion in model container [2022-12-13 15:20:57,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:20:57" (1/1) ... [2022-12-13 15:20:58,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:20:58,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:20:58,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:20:58,262 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:20:58,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:20:58,314 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:20:58,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58 WrapperNode [2022-12-13 15:20:58,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:20:58,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:20:58,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:20:58,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:20:58,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,350 INFO L138 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-12-13 15:20:58,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:20:58,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:20:58,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:20:58,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:20:58,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:20:58,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:20:58,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:20:58,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:20:58,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (1/1) ... [2022-12-13 15:20:58,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:20:58,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:20:58,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:20:58,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:20:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:20:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:20:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:20:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:20:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:20:58,425 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 15:20:58,520 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:20:58,521 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:20:58,681 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:20:58,686 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:20:58,686 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:20:58,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:20:58 BoogieIcfgContainer [2022-12-13 15:20:58,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:20:58,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:20:58,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:20:58,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:20:58,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:20:57" (1/3) ... [2022-12-13 15:20:58,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d498b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:20:58, skipping insertion in model container [2022-12-13 15:20:58,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:20:58" (2/3) ... [2022-12-13 15:20:58,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d498b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:20:58, skipping insertion in model container [2022-12-13 15:20:58,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:20:58" (3/3) ... [2022-12-13 15:20:58,695 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2022-12-13 15:20:58,701 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:20:58,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:20:58,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 15:20:58,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:20:58,748 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:20:58,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow [2022-12-13 15:20:58,803 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-13 15:20:58,803 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:20:58,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 15:20:58,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 83 transitions, 171 flow [2022-12-13 15:20:58,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 82 transitions, 167 flow [2022-12-13 15:20:58,812 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:20:58,820 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 82 transitions, 167 flow [2022-12-13 15:20:58,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 82 transitions, 167 flow [2022-12-13 15:20:58,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 167 flow [2022-12-13 15:20:58,839 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-13 15:20:58,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:20:58,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 15:20:58,841 INFO L119 LiptonReduction]: Number of co-enabled transitions 1500 [2022-12-13 15:20:59,751 INFO L134 LiptonReduction]: Checked pairs total: 6898 [2022-12-13 15:20:59,751 INFO L136 LiptonReduction]: Total number of compositions: 47 [2022-12-13 15:20:59,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:20:59,766 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;@3276006c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:20:59,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 15:20:59,770 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 15:20:59,770 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:20:59,770 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:20:59,771 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:20:59,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:20:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:20:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2085438820, now seen corresponding path program 1 times [2022-12-13 15:20:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:20:59,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315665928] [2022-12-13 15:20:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:20:59,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:20:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:20:59,931 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 15:20:59,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:20:59,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315665928] [2022-12-13 15:20:59,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315665928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:20:59,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:20:59,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:20:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657516153] [2022-12-13 15:20:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:20:59,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:20:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:20:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:20:59,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:20:59,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2022-12-13 15:20:59,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 15:20:59,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:20:59,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2022-12-13 15:20:59,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:00,020 INFO L130 PetriNetUnfolder]: 31/137 cut-off events. [2022-12-13 15:21:00,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:21:00,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 137 events. 31/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 482 event pairs, 30 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 203. Up to 76 conditions per place. [2022-12-13 15:21:00,022 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 14 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 15:21:00,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 109 flow [2022-12-13 15:21:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:21:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:21:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-12-13 15:21:00,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6358974358974359 [2022-12-13 15:21:00,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-12-13 15:21:00,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-12-13 15:21:00,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:00,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-12-13 15:21:00,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:21:00,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 15:21:00,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 15:21:00,042 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 248 transitions. [2022-12-13 15:21:00,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 109 flow [2022-12-13 15:21:00,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:21:00,046 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2022-12-13 15:21:00,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-12-13 15:21:00,050 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-13 15:21:00,050 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2022-12-13 15:21:00,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 15:21:00,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:00,051 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:00,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:21:00,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:00,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash 584072572, now seen corresponding path program 1 times [2022-12-13 15:21:00,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:00,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422795228] [2022-12-13 15:21:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:00,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:21:00,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422795228] [2022-12-13 15:21:00,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422795228] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:21:00,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337467640] [2022-12-13 15:21:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:00,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:21:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:21:00,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:21:00,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:21:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:00,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:21:00,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:21:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:00,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:21:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:00,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337467640] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:21:00,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:21:00,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 15:21:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743489363] [2022-12-13 15:21:00,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:21:00,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:21:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:21:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:21:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:21:00,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 130 [2022-12-13 15:21:00,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:21:00,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:21:00,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 130 [2022-12-13 15:21:00,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:00,289 INFO L130 PetriNetUnfolder]: 31/140 cut-off events. [2022-12-13 15:21:00,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:21:00,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 140 events. 31/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 476 event pairs, 30 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 222. Up to 76 conditions per place. [2022-12-13 15:21:00,291 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 14 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-13 15:21:00,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 136 flow [2022-12-13 15:21:00,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:21:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:21:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2022-12-13 15:21:00,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6128205128205129 [2022-12-13 15:21:00,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2022-12-13 15:21:00,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2022-12-13 15:21:00,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:00,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2022-12-13 15:21:00,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 15:21:00,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:00,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:00,301 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 478 transitions. [2022-12-13 15:21:00,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 136 flow [2022-12-13 15:21:00,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 132 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 15:21:00,303 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2022-12-13 15:21:00,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 15:21:00,304 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2022-12-13 15:21:00,304 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2022-12-13 15:21:00,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:21:00,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:00,305 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:00,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:21:00,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:21:00,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:00,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash 630176131, now seen corresponding path program 2 times [2022-12-13 15:21:00,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:00,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186261647] [2022-12-13 15:21:00,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 15:21:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:21:00,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186261647] [2022-12-13 15:21:00,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186261647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:21:00,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:21:00,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:21:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423550422] [2022-12-13 15:21:00,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:21:00,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:21:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:21:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:21:00,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:21:01,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 130 [2022-12-13 15:21:01,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 15:21:01,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:21:01,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 130 [2022-12-13 15:21:01,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:01,243 INFO L130 PetriNetUnfolder]: 321/750 cut-off events. [2022-12-13 15:21:01,243 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:21:01,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 750 events. 321/750 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3949 event pairs, 78 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 1445. Up to 302 conditions per place. [2022-12-13 15:21:01,247 INFO L137 encePairwiseOnDemand]: 108/130 looper letters, 109 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2022-12-13 15:21:01,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 154 transitions, 648 flow [2022-12-13 15:21:01,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:21:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:21:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-12-13 15:21:01,250 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6371794871794871 [2022-12-13 15:21:01,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-12-13 15:21:01,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-12-13 15:21:01,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:01,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-12-13 15:21:01,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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 15:21:01,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:01,253 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:01,253 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 497 transitions. [2022-12-13 15:21:01,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 154 transitions, 648 flow [2022-12-13 15:21:01,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 154 transitions, 634 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 15:21:01,255 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2022-12-13 15:21:01,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2022-12-13 15:21:01,256 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2022-12-13 15:21:01,256 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2022-12-13 15:21:01,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 15:21:01,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:01,257 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:01,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:21:01,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1895125919, now seen corresponding path program 1 times [2022-12-13 15:21:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:01,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106820679] [2022-12-13 15:21:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:01,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:21:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106820679] [2022-12-13 15:21:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106820679] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:21:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535956840] [2022-12-13 15:21:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:01,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:21:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:21:01,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:21:01,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:21:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:01,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:21:01,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:21:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:01,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:21:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:21:01,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535956840] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:21:01,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:21:01,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 15:21:01,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111515679] [2022-12-13 15:21:01,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:21:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 15:21:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:21:01,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 15:21:01,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:21:01,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 130 [2022-12-13 15:21:01,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 77.38461538461539) internal successors, (1006), 13 states have internal predecessors, (1006), 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 15:21:01,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:21:01,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 130 [2022-12-13 15:21:01,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:01,588 INFO L130 PetriNetUnfolder]: 151/499 cut-off events. [2022-12-13 15:21:01,588 INFO L131 PetriNetUnfolder]: For 245/257 co-relation queries the response was YES. [2022-12-13 15:21:01,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 499 events. 151/499 cut-off events. For 245/257 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2899 event pairs, 59 based on Foata normal form. 6/487 useless extension candidates. Maximal degree in co-relation 1239. Up to 197 conditions per place. [2022-12-13 15:21:01,591 INFO L137 encePairwiseOnDemand]: 127/130 looper letters, 30 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2022-12-13 15:21:01,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 538 flow [2022-12-13 15:21:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:21:01,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:21:01,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 943 transitions. [2022-12-13 15:21:01,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6044871794871794 [2022-12-13 15:21:01,593 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 943 transitions. [2022-12-13 15:21:01,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 943 transitions. [2022-12-13 15:21:01,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:01,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 943 transitions. [2022-12-13 15:21:01,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.58333333333333) internal successors, (943), 12 states have internal predecessors, (943), 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 15:21:01,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 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 15:21:01,598 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 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 15:21:01,598 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 943 transitions. [2022-12-13 15:21:01,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 538 flow [2022-12-13 15:21:01,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:21:01,602 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2022-12-13 15:21:01,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2022-12-13 15:21:01,603 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2022-12-13 15:21:01,603 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2022-12-13 15:21:01,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 77.38461538461539) internal successors, (1006), 13 states have internal predecessors, (1006), 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 15:21:01,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:01,603 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:01,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:21:01,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:21:01,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1291022785, now seen corresponding path program 2 times [2022-12-13 15:21:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:01,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838405913] [2022-12-13 15:21:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 15:21:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:21:02,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838405913] [2022-12-13 15:21:02,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838405913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:21:02,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:21:02,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:21:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227982531] [2022-12-13 15:21:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:21:02,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:21:02,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:21:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:21:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:21:02,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 130 [2022-12-13 15:21:02,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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 15:21:02,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:21:02,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 130 [2022-12-13 15:21:02,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:02,424 INFO L130 PetriNetUnfolder]: 423/965 cut-off events. [2022-12-13 15:21:02,424 INFO L131 PetriNetUnfolder]: For 589/598 co-relation queries the response was YES. [2022-12-13 15:21:02,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2965 conditions, 965 events. 423/965 cut-off events. For 589/598 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5237 event pairs, 139 based on Foata normal form. 24/988 useless extension candidates. Maximal degree in co-relation 2885. Up to 678 conditions per place. [2022-12-13 15:21:02,431 INFO L137 encePairwiseOnDemand]: 114/130 looper letters, 119 selfloop transitions, 46 changer transitions 6/175 dead transitions. [2022-12-13 15:21:02,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 175 transitions, 1190 flow [2022-12-13 15:21:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:21:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:21:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 441 transitions. [2022-12-13 15:21:02,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653846153846154 [2022-12-13 15:21:02,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 441 transitions. [2022-12-13 15:21:02,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 441 transitions. [2022-12-13 15:21:02,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:02,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 441 transitions. [2022-12-13 15:21:02,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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 15:21:02,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:02,435 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:02,435 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 441 transitions. [2022-12-13 15:21:02,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 175 transitions, 1190 flow [2022-12-13 15:21:02,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 175 transitions, 1142 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 15:21:02,449 INFO L231 Difference]: Finished difference. Result has 78 places, 135 transitions, 879 flow [2022-12-13 15:21:02,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=879, PETRI_PLACES=78, PETRI_TRANSITIONS=135} [2022-12-13 15:21:02,450 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 39 predicate places. [2022-12-13 15:21:02,450 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 135 transitions, 879 flow [2022-12-13 15:21:02,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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 15:21:02,451 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:02,451 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:02,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:21:02,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 29174287, now seen corresponding path program 1 times [2022-12-13 15:21:02,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:02,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126958886] [2022-12-13 15:21:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:21:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 15:21:02,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:21:02,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126958886] [2022-12-13 15:21:02,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126958886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:21:02,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:21:02,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:21:02,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523620769] [2022-12-13 15:21:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:21:02,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:21:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:21:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:21:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:21:02,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 130 [2022-12-13 15:21:02,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 135 transitions, 879 flow. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 15:21:02,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:21:02,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 130 [2022-12-13 15:21:02,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:21:02,986 INFO L130 PetriNetUnfolder]: 504/1124 cut-off events. [2022-12-13 15:21:02,986 INFO L131 PetriNetUnfolder]: For 1845/1864 co-relation queries the response was YES. [2022-12-13 15:21:02,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4234 conditions, 1124 events. 504/1124 cut-off events. For 1845/1864 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6217 event pairs, 153 based on Foata normal form. 25/1147 useless extension candidates. Maximal degree in co-relation 4174. Up to 819 conditions per place. [2022-12-13 15:21:02,992 INFO L137 encePairwiseOnDemand]: 114/130 looper letters, 141 selfloop transitions, 49 changer transitions 19/213 dead transitions. [2022-12-13 15:21:02,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 213 transitions, 1717 flow [2022-12-13 15:21:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:21:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:21:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 443 transitions. [2022-12-13 15:21:02,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5679487179487179 [2022-12-13 15:21:02,993 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 443 transitions. [2022-12-13 15:21:02,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 443 transitions. [2022-12-13 15:21:02,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:21:02,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 443 transitions. [2022-12-13 15:21:02,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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 15:21:02,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:02,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 15:21:02,995 INFO L175 Difference]: Start difference. First operand has 78 places, 135 transitions, 879 flow. Second operand 6 states and 443 transitions. [2022-12-13 15:21:02,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 213 transitions, 1717 flow [2022-12-13 15:21:03,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 213 transitions, 1683 flow, removed 17 selfloop flow, removed 0 redundant places. [2022-12-13 15:21:03,004 INFO L231 Difference]: Finished difference. Result has 87 places, 164 transitions, 1230 flow [2022-12-13 15:21:03,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1230, PETRI_PLACES=87, PETRI_TRANSITIONS=164} [2022-12-13 15:21:03,005 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 48 predicate places. [2022-12-13 15:21:03,005 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 164 transitions, 1230 flow [2022-12-13 15:21:03,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 15:21:03,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:21:03,005 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:21:03,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:21:03,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 15:21:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:21:03,006 INFO L85 PathProgramCache]: Analyzing trace with hash -686297036, now seen corresponding path program 1 times [2022-12-13 15:21:03,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:21:03,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523129203] [2022-12-13 15:21:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:21:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:21:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:21:03,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:21:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:21:03,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:21:03,048 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:21:03,049 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-12-13 15:21:03,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-12-13 15:21:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2022-12-13 15:21:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-13 15:21:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-12-13 15:21:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-12-13 15:21:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-12-13 15:21:03,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:21:03,051 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-12-13 15:21:03,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:21:03,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:21:03,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:21:03 BasicIcfg [2022-12-13 15:21:03,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:21:03,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:21:03,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:21:03,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:21:03,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:20:58" (3/4) ... [2022-12-13 15:21:03,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:21:03,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:21:03,082 INFO L158 Benchmark]: Toolchain (without parser) took 5093.68ms. Allocated memory was 113.2MB in the beginning and 207.6MB in the end (delta: 94.4MB). Free memory was 62.1MB in the beginning and 89.3MB in the end (delta: -27.3MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,082 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:21:03,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.34ms. Allocated memory was 113.2MB in the beginning and 172.0MB in the end (delta: 58.7MB). Free memory was 62.1MB in the beginning and 134.5MB in the end (delta: -72.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 172.0MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,083 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 172.0MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,083 INFO L158 Benchmark]: RCFGBuilder took 315.15ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 115.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,084 INFO L158 Benchmark]: TraceAbstraction took 4388.72ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 114.6MB in the beginning and 90.4MB in the end (delta: 24.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-12-13 15:21:03,084 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 207.6MB. Free memory was 90.4MB in the beginning and 89.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:21:03,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.34ms. Allocated memory was 113.2MB in the beginning and 172.0MB in the end (delta: 58.7MB). Free memory was 62.1MB in the beginning and 134.5MB in the end (delta: -72.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 172.0MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 172.0MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.15ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 115.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4388.72ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 114.6MB in the beginning and 90.4MB in the end (delta: 24.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 207.6MB. Free memory was 90.4MB in the beginning and 89.3MB in the end (delta: 1.0MB). 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: 0.9s, 84 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 36 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 47 TotalNumberOfCompositions, 6898 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1362, independent: 1016, independent conditional: 0, independent unconditional: 1016, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 642, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1362, independent: 419, independent conditional: 0, independent unconditional: 419, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 642, unknown conditional: 0, unknown unconditional: 642] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 683]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; [L680] 0 pthread_mutex_t m[10]; [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) [L690] 0 pthread_t id; [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=0, data[4]++=241, i=10, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [693] and C: data[4]++ [683] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 683]: 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, 109 locations, 7 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: 4.3s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 947 IncrementalHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 4 mSDtfsCounter, 947 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1230occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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 15:21:03,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813d49bf-a8f6-4a8a-ac50-c92a5b83757c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE