./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:28:04,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:28:04,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:28:04,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:28:04,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:28:04,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:28:04,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:28:04,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:28:04,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:28:04,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:28:04,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:28:04,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:28:04,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:28:04,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:28:04,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:28:04,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:28:04,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:28:04,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:28:04,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:28:04,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:28:04,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:28:04,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:28:04,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:28:04,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:28:04,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:28:04,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:28:04,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:28:04,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:28:04,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:28:04,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:28:04,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:28:04,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:28:04,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:28:04,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:28:04,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:28:04,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:28:04,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:28:04,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:28:04,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:28:04,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:28:04,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:28:04,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:28:04,662 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:28:04,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:28:04,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:28:04,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:28:04,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:28:04,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:28:04,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:28:04,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:28:04,665 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:28:04,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:28:04,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:28:04,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:28:04,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:28:04,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:28:04,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:28:04,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:28:04,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:04,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:28:04,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:28:04,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:28:04,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:28:04,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:28:04,672 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:28:04,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:28:04,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:28:04,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2022-11-18 20:28:04,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:28:05,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:28:05,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:28:05,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:28:05,027 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:28:05,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-11-18 20:28:05,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/data/daf8f4b43/5f6844a7fef14e4f818940f50217f438/FLAG5a62770ee [2022-11-18 20:28:05,640 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:28:05,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-11-18 20:28:05,659 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/data/daf8f4b43/5f6844a7fef14e4f818940f50217f438/FLAG5a62770ee [2022-11-18 20:28:06,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/data/daf8f4b43/5f6844a7fef14e4f818940f50217f438 [2022-11-18 20:28:06,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:28:06,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:28:06,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:06,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:28:06,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:28:06,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8be7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06, skipping insertion in model container [2022-11-18 20:28:06,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:28:06,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:28:06,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:06,482 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:28:06,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:06,553 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:28:06,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06 WrapperNode [2022-11-18 20:28:06,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:06,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:06,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:28:06,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:28:06,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,633 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-18 20:28:06,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:06,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:28:06,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:28:06,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:28:06,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:28:06,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:28:06,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:28:06,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:28:06,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (1/1) ... [2022-11-18 20:28:06,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:06,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:06,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:28:06,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:28:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:28:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:28:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:28:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:28:06,802 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:28:06,954 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:28:06,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:28:07,277 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:28:07,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:28:07,283 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:28:07,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:07 BoogieIcfgContainer [2022-11-18 20:28:07,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:28:07,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:28:07,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:28:07,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:28:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:28:06" (1/3) ... [2022-11-18 20:28:07,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c73d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:07, skipping insertion in model container [2022-11-18 20:28:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:06" (2/3) ... [2022-11-18 20:28:07,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c73d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:07, skipping insertion in model container [2022-11-18 20:28:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:07" (3/3) ... [2022-11-18 20:28:07,295 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2022-11-18 20:28:07,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:28:07,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:28:07,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:28:07,317 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:28:07,393 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:28:07,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 94 transitions, 193 flow [2022-11-18 20:28:07,537 INFO L130 PetriNetUnfolder]: 3/93 cut-off events. [2022-11-18 20:28:07,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:28:07,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 3/93 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. 0/86 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-11-18 20:28:07,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 94 transitions, 193 flow [2022-11-18 20:28:07,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 93 transitions, 189 flow [2022-11-18 20:28:07,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:28:07,566 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;@14b34521, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:28:07,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 20:28:07,585 INFO L130 PetriNetUnfolder]: 3/54 cut-off events. [2022-11-18 20:28:07,586 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:28:07,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:07,587 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:07,587 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)] === [2022-11-18 20:28:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash -42146965, now seen corresponding path program 1 times [2022-11-18 20:28:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:07,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321653306] [2022-11-18 20:28:07,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:07,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:07,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:07,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321653306] [2022-11-18 20:28:07,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321653306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:07,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:07,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:07,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916815326] [2022-11-18 20:28:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:07,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:28:07,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:28:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:28:07,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 94 [2022-11-18 20:28:07,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 189 flow. Second operand has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:07,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:07,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 94 [2022-11-18 20:28:07,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:08,020 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-11-18 20:28:08,020 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:28:08,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 91 events. 1/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 2/87 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-11-18 20:28:08,022 INFO L137 encePairwiseOnDemand]: 92/94 looper letters, 1 selfloop transitions, 0 changer transitions 1/91 dead transitions. [2022-11-18 20:28:08,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 187 flow [2022-11-18 20:28:08,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:28:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:28:08,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 185 transitions. [2022-11-18 20:28:08,044 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9840425531914894 [2022-11-18 20:28:08,045 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 185 transitions. [2022-11-18 20:28:08,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 185 transitions. [2022-11-18 20:28:08,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:08,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 185 transitions. [2022-11-18 20:28:08,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,064 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,066 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 189 flow. Second operand 2 states and 185 transitions. [2022-11-18 20:28:08,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 187 flow [2022-11-18 20:28:08,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 91 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:08,073 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 182 flow [2022-11-18 20:28:08,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=182, PETRI_PLACES=94, PETRI_TRANSITIONS=90} [2022-11-18 20:28:08,078 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2022-11-18 20:28:08,078 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 182 flow [2022-11-18 20:28:08,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:08,079 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:08,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:28:08,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:08,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:08,081 INFO L85 PathProgramCache]: Analyzing trace with hash -109153718, now seen corresponding path program 1 times [2022-11-18 20:28:08,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:08,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369589998] [2022-11-18 20:28:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:08,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:08,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:08,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:08,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369589998] [2022-11-18 20:28:08,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369589998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:08,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:08,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:28:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123726234] [2022-11-18 20:28:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:08,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:08,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 94 [2022-11-18 20:28:08,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:08,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 94 [2022-11-18 20:28:08,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:08,350 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-18 20:28:08,350 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:28:08,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 108. Up to 9 conditions per place. [2022-11-18 20:28:08,360 INFO L137 encePairwiseOnDemand]: 91/94 looper letters, 10 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2022-11-18 20:28:08,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 214 flow [2022-11-18 20:28:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:08,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2022-11-18 20:28:08,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9397163120567376 [2022-11-18 20:28:08,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2022-11-18 20:28:08,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2022-11-18 20:28:08,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:08,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2022-11-18 20:28:08,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,378 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 182 flow. Second operand 3 states and 265 transitions. [2022-11-18 20:28:08,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 214 flow [2022-11-18 20:28:08,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:28:08,382 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 194 flow [2022-11-18 20:28:08,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2022-11-18 20:28:08,383 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2022-11-18 20:28:08,383 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 194 flow [2022-11-18 20:28:08,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:08,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:08,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:28:08,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:08,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:08,390 INFO L85 PathProgramCache]: Analyzing trace with hash 258130399, now seen corresponding path program 1 times [2022-11-18 20:28:08,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:08,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908941552] [2022-11-18 20:28:08,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:08,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:08,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:08,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908941552] [2022-11-18 20:28:08,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908941552] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:08,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602439933] [2022-11-18 20:28:08,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:08,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:08,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:08,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:28:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:08,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:28:08,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:08,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:08,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602439933] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:08,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:08,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:28:08,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553339653] [2022-11-18 20:28:08,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:08,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:28:08,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:08,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:28:08,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:28:08,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 94 [2022-11-18 20:28:08,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 194 flow. Second operand has 10 states, 10 states have (on average 85.1) internal successors, (851), 10 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:08,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:08,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 94 [2022-11-18 20:28:08,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:09,092 INFO L130 PetriNetUnfolder]: 1/101 cut-off events. [2022-11-18 20:28:09,093 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:28:09,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 101 events. 1/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 129. Up to 6 conditions per place. [2022-11-18 20:28:09,094 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 11 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2022-11-18 20:28:09,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 256 flow [2022-11-18 20:28:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:28:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:28:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2022-11-18 20:28:09,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9089834515366431 [2022-11-18 20:28:09,102 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2022-11-18 20:28:09,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2022-11-18 20:28:09,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:09,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2022-11-18 20:28:09,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:09,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:09,114 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:09,115 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 194 flow. Second operand 9 states and 769 transitions. [2022-11-18 20:28:09,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 256 flow [2022-11-18 20:28:09,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:09,122 INFO L231 Difference]: Finished difference. Result has 106 places, 97 transitions, 242 flow [2022-11-18 20:28:09,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=106, PETRI_TRANSITIONS=97} [2022-11-18 20:28:09,125 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2022-11-18 20:28:09,125 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 97 transitions, 242 flow [2022-11-18 20:28:09,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.1) internal successors, (851), 10 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:09,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:09,127 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:09,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:09,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:28:09,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:09,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash 440631487, now seen corresponding path program 2 times [2022-11-18 20:28:09,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:09,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384001940] [2022-11-18 20:28:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:09,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:09,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384001940] [2022-11-18 20:28:09,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384001940] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:09,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239087093] [2022-11-18 20:28:09,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:28:09,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:09,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:09,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:09,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:28:09,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:28:09,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:09,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:28:09,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:09,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:28:09,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:28:09,803 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:28:09,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-18 20:28:09,859 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:28:09,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-18 20:28:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:28:09,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:28:09,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239087093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:09,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:28:09,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 20:28:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537268193] [2022-11-18 20:28:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:09,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:09,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:09,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:09,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:28:09,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2022-11-18 20:28:09,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 97 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:09,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:09,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2022-11-18 20:28:09,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:10,507 INFO L130 PetriNetUnfolder]: 332/1091 cut-off events. [2022-11-18 20:28:10,507 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:28:10,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1840 conditions, 1091 events. 332/1091 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6889 event pairs, 77 based on Foata normal form. 0/989 useless extension candidates. Maximal degree in co-relation 1833. Up to 288 conditions per place. [2022-11-18 20:28:10,517 INFO L137 encePairwiseOnDemand]: 72/94 looper letters, 99 selfloop transitions, 42 changer transitions 0/207 dead transitions. [2022-11-18 20:28:10,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 207 transitions, 744 flow [2022-11-18 20:28:10,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:28:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:28:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2022-11-18 20:28:10,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9024822695035462 [2022-11-18 20:28:10,520 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 509 transitions. [2022-11-18 20:28:10,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 509 transitions. [2022-11-18 20:28:10,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:10,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 509 transitions. [2022-11-18 20:28:10,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:10,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:10,524 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:10,525 INFO L175 Difference]: Start difference. First operand has 106 places, 97 transitions, 242 flow. Second operand 6 states and 509 transitions. [2022-11-18 20:28:10,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 207 transitions, 744 flow [2022-11-18 20:28:10,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 207 transitions, 738 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:10,530 INFO L231 Difference]: Finished difference. Result has 115 places, 143 transitions, 552 flow [2022-11-18 20:28:10,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=115, PETRI_TRANSITIONS=143} [2022-11-18 20:28:10,533 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2022-11-18 20:28:10,533 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 143 transitions, 552 flow [2022-11-18 20:28:10,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:10,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:10,534 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:10,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:10,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:10,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:10,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1996272196, now seen corresponding path program 1 times [2022-11-18 20:28:10,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:10,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772384424] [2022-11-18 20:28:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:10,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:11,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:28:11,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:11,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772384424] [2022-11-18 20:28:11,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772384424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:11,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:11,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:28:11,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402146190] [2022-11-18 20:28:11,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:11,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:11,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:11,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:11,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:28:11,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 94 [2022-11-18 20:28:11,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 143 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:11,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:11,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 94 [2022-11-18 20:28:11,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:11,847 INFO L130 PetriNetUnfolder]: 502/1475 cut-off events. [2022-11-18 20:28:11,847 INFO L131 PetriNetUnfolder]: For 592/592 co-relation queries the response was YES. [2022-11-18 20:28:11,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 1475 events. 502/1475 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9824 event pairs, 152 based on Foata normal form. 23/1497 useless extension candidates. Maximal degree in co-relation 3681. Up to 717 conditions per place. [2022-11-18 20:28:11,859 INFO L137 encePairwiseOnDemand]: 77/94 looper letters, 114 selfloop transitions, 53 changer transitions 3/234 dead transitions. [2022-11-18 20:28:11,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 234 transitions, 1268 flow [2022-11-18 20:28:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:28:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:28:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2022-11-18 20:28:11,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8226950354609929 [2022-11-18 20:28:11,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 464 transitions. [2022-11-18 20:28:11,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 464 transitions. [2022-11-18 20:28:11,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:11,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 464 transitions. [2022-11-18 20:28:11,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2022-11-18 20:28:11,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:11,865 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:11,865 INFO L175 Difference]: Start difference. First operand has 115 places, 143 transitions, 552 flow. Second operand 6 states and 464 transitions. [2022-11-18 20:28:11,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 234 transitions, 1268 flow [2022-11-18 20:28:11,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 234 transitions, 1268 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:28:11,875 INFO L231 Difference]: Finished difference. Result has 125 places, 194 transitions, 1058 flow [2022-11-18 20:28:11,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1058, PETRI_PLACES=125, PETRI_TRANSITIONS=194} [2022-11-18 20:28:11,876 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 31 predicate places. [2022-11-18 20:28:11,876 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 194 transitions, 1058 flow [2022-11-18 20:28:11,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:11,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:11,877 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:11,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:28:11,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1241701045, now seen corresponding path program 1 times [2022-11-18 20:28:11,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:11,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116981878] [2022-11-18 20:28:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:11,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:12,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:12,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116981878] [2022-11-18 20:28:12,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116981878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:12,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117105648] [2022-11-18 20:28:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:12,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:12,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:12,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:12,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:28:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:28:12,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:12,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:12,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117105648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:12,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:12,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:28:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268861752] [2022-11-18 20:28:12,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:12,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:28:12,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:12,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:28:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:28:12,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 94 [2022-11-18 20:28:12,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 194 transitions, 1058 flow. Second operand has 18 states, 18 states have (on average 85.27777777777777) internal successors, (1535), 18 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:12,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:12,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 94 [2022-11-18 20:28:12,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:12,804 INFO L130 PetriNetUnfolder]: 221/1012 cut-off events. [2022-11-18 20:28:12,804 INFO L131 PetriNetUnfolder]: For 821/852 co-relation queries the response was YES. [2022-11-18 20:28:12,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2519 conditions, 1012 events. 221/1012 cut-off events. For 821/852 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6838 event pairs, 31 based on Foata normal form. 12/1013 useless extension candidates. Maximal degree in co-relation 2502. Up to 203 conditions per place. [2022-11-18 20:28:12,814 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 19 selfloop transitions, 21 changer transitions 0/218 dead transitions. [2022-11-18 20:28:12,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 218 transitions, 1238 flow [2022-11-18 20:28:12,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:28:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:28:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1787 transitions. [2022-11-18 20:28:12,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9052684903748733 [2022-11-18 20:28:12,820 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1787 transitions. [2022-11-18 20:28:12,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1787 transitions. [2022-11-18 20:28:12,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:12,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1787 transitions. [2022-11-18 20:28:12,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 85.0952380952381) internal successors, (1787), 21 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:12,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:12,834 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:12,834 INFO L175 Difference]: Start difference. First operand has 125 places, 194 transitions, 1058 flow. Second operand 21 states and 1787 transitions. [2022-11-18 20:28:12,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 218 transitions, 1238 flow [2022-11-18 20:28:12,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 218 transitions, 1230 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-11-18 20:28:12,867 INFO L231 Difference]: Finished difference. Result has 150 places, 207 transitions, 1180 flow [2022-11-18 20:28:12,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1180, PETRI_PLACES=150, PETRI_TRANSITIONS=207} [2022-11-18 20:28:12,868 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 56 predicate places. [2022-11-18 20:28:12,869 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 207 transitions, 1180 flow [2022-11-18 20:28:12,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 85.27777777777777) internal successors, (1535), 18 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:12,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:12,870 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:12,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:13,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:13,075 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:13,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2104433909, now seen corresponding path program 2 times [2022-11-18 20:28:13,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739896619] [2022-11-18 20:28:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:13,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:13,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739896619] [2022-11-18 20:28:13,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739896619] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:13,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895551313] [2022-11-18 20:28:13,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:28:13,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:13,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:13,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:28:13,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:28:13,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:13,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:28:13,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:13,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:28:13,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:28:13,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:28:13,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-18 20:28:13,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:28:13,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-18 20:28:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 20:28:13,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:28:13,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895551313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:13,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:28:13,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:28:13,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340682273] [2022-11-18 20:28:13,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:13,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:13,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:13,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:13,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:28:13,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-11-18 20:28:13,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 207 transitions, 1180 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:13,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:13,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-11-18 20:28:13,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:14,443 INFO L130 PetriNetUnfolder]: 612/1799 cut-off events. [2022-11-18 20:28:14,444 INFO L131 PetriNetUnfolder]: For 2033/2036 co-relation queries the response was YES. [2022-11-18 20:28:14,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5644 conditions, 1799 events. 612/1799 cut-off events. For 2033/2036 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12526 event pairs, 163 based on Foata normal form. 28/1823 useless extension candidates. Maximal degree in co-relation 5622. Up to 909 conditions per place. [2022-11-18 20:28:14,459 INFO L137 encePairwiseOnDemand]: 77/94 looper letters, 134 selfloop transitions, 58 changer transitions 36/307 dead transitions. [2022-11-18 20:28:14,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 307 transitions, 2192 flow [2022-11-18 20:28:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:28:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:28:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2022-11-18 20:28:14,462 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2022-11-18 20:28:14,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 459 transitions. [2022-11-18 20:28:14,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 459 transitions. [2022-11-18 20:28:14,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:14,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 459 transitions. [2022-11-18 20:28:14,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:14,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:14,467 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:14,467 INFO L175 Difference]: Start difference. First operand has 150 places, 207 transitions, 1180 flow. Second operand 6 states and 459 transitions. [2022-11-18 20:28:14,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 307 transitions, 2192 flow [2022-11-18 20:28:14,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 307 transitions, 2168 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:28:14,509 INFO L231 Difference]: Finished difference. Result has 153 places, 234 transitions, 1564 flow [2022-11-18 20:28:14,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1564, PETRI_PLACES=153, PETRI_TRANSITIONS=234} [2022-11-18 20:28:14,510 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 59 predicate places. [2022-11-18 20:28:14,510 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 234 transitions, 1564 flow [2022-11-18 20:28:14,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:14,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:14,511 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:14,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:14,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:14,716 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash 334973320, now seen corresponding path program 1 times [2022-11-18 20:28:14,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:14,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563881300] [2022-11-18 20:28:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:14,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:15,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:15,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563881300] [2022-11-18 20:28:15,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563881300] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:15,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297741073] [2022-11-18 20:28:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:15,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:15,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:15,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:15,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:28:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:28:15,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:15,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:15,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297741073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:15,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:15,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:28:15,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237654376] [2022-11-18 20:28:15,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:15,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:28:15,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:28:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:28:15,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 94 [2022-11-18 20:28:15,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 234 transitions, 1564 flow. Second operand has 23 states, 23 states have (on average 85.43478260869566) internal successors, (1965), 23 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:15,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:15,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 94 [2022-11-18 20:28:15,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:16,199 INFO L130 PetriNetUnfolder]: 300/1284 cut-off events. [2022-11-18 20:28:16,199 INFO L131 PetriNetUnfolder]: For 2425/2463 co-relation queries the response was YES. [2022-11-18 20:28:16,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3973 conditions, 1284 events. 300/1284 cut-off events. For 2425/2463 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9241 event pairs, 30 based on Foata normal form. 15/1286 useless extension candidates. Maximal degree in co-relation 3946. Up to 284 conditions per place. [2022-11-18 20:28:16,230 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 25 selfloop transitions, 30 changer transitions 0/260 dead transitions. [2022-11-18 20:28:16,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 260 transitions, 1814 flow [2022-11-18 20:28:16,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:28:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:28:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2548 transitions. [2022-11-18 20:28:16,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9035460992907801 [2022-11-18 20:28:16,238 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2548 transitions. [2022-11-18 20:28:16,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2548 transitions. [2022-11-18 20:28:16,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:16,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2548 transitions. [2022-11-18 20:28:16,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 84.93333333333334) internal successors, (2548), 30 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:16,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:16,257 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:16,257 INFO L175 Difference]: Start difference. First operand has 153 places, 234 transitions, 1564 flow. Second operand 30 states and 2548 transitions. [2022-11-18 20:28:16,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 260 transitions, 1814 flow [2022-11-18 20:28:16,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 260 transitions, 1764 flow, removed 8 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:16,282 INFO L231 Difference]: Finished difference. Result has 185 places, 244 transitions, 1666 flow [2022-11-18 20:28:16,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1514, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1666, PETRI_PLACES=185, PETRI_TRANSITIONS=244} [2022-11-18 20:28:16,286 INFO L288 CegarLoopForPetriNet]: 94 programPoint places, 91 predicate places. [2022-11-18 20:28:16,286 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 244 transitions, 1666 flow [2022-11-18 20:28:16,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 85.43478260869566) internal successors, (1965), 23 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:16,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:16,287 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:16,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:16,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:16,493 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:28:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:16,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1089215281, now seen corresponding path program 2 times [2022-11-18 20:28:16,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:16,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886100146] [2022-11-18 20:28:16,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:16,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:28:16,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:28:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:28:16,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:28:16,631 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:28:16,632 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-18 20:28:16,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-18 20:28:16,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-18 20:28:16,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-18 20:28:16,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-18 20:28:16,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-18 20:28:16,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-18 20:28:16,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:28:16,637 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2022-11-18 20:28:16,645 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:28:16,645 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:28:16,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:28:16 BasicIcfg [2022-11-18 20:28:16,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:28:16,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:28:16,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:28:16,727 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:28:16,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:07" (3/4) ... [2022-11-18 20:28:16,731 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:28:16,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:28:16,732 INFO L158 Benchmark]: Toolchain (without parser) took 10661.10ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 97.6MB in the beginning and 151.0MB in the end (delta: -53.4MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,732 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:28:16,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.30ms. Allocated memory is still 136.3MB. Free memory was 97.4MB in the beginning and 101.5MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.90ms. Allocated memory is still 136.3MB. Free memory was 101.5MB in the beginning and 99.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,733 INFO L158 Benchmark]: Boogie Preprocessor took 48.22ms. Allocated memory is still 136.3MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,734 INFO L158 Benchmark]: RCFGBuilder took 602.89ms. Allocated memory is still 136.3MB. Free memory was 97.8MB in the beginning and 82.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,734 INFO L158 Benchmark]: TraceAbstraction took 9438.11ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 81.4MB in the beginning and 151.0MB in the end (delta: -69.6MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-11-18 20:28:16,734 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 237.0MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:28:16,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.30ms. Allocated memory is still 136.3MB. Free memory was 97.4MB in the beginning and 101.5MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.90ms. Allocated memory is still 136.3MB. Free memory was 101.5MB in the beginning and 99.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.22ms. Allocated memory is still 136.3MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.89ms. Allocated memory is still 136.3MB. Free memory was 97.8MB in the beginning and 82.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9438.11ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 81.4MB in the beginning and 151.0MB in the end (delta: -69.6MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 237.0MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L695] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, data={1:0}, i=10, i=0, m={2:0}] [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}, m={2:0}] [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; VAL [data={1:0}, i=10, i=0, id={3:0}, m={2:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=0, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L688] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, i=10, id={3:0}, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=0, i=10, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]++=0, data[4]++=241, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=241, data[4]++=0, i=10, i=0, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that 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: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: 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, 119 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: 9.2s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 993 IncrementalHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 89 mSDtfsCounter, 993 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 620 GetRequests, 495 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1666occurred in iteration=8, InterpolantAutomatonStates: 83, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 907 NumberOfCodeBlocks, 857 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 983 ConstructedInterpolants, 0 QuantifiedInterpolants, 1704 SizeOfPredicates, 22 NumberOfNonLiveVariables, 766 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 148/671 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:28:16,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53915e0b-91ee-4e20-b3b1-ea97e152c030/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE