./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.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_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/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_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/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_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/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 305ca34367a0384e1cfb307304cf4f5bc67454529c9c0988e189092c0a2626a1 --- 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 20:02:33,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:33,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:33,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:33,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:33,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:33,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:33,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:33,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:33,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:33,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:33,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:33,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:33,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:33,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:33,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:33,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:33,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:33,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:33,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:33,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:33,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:33,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:33,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:33,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:33,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:33,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:33,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:33,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:33,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:33,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:33,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:33,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:33,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:33,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:33,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:33,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:33,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:33,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:33,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:33,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:33,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:02:33,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:33,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:33,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:33,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:33,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:33,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:33,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:33,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:33,730 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:33,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:33,732 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:33,732 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:02:33,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:33,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:33,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:33,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:33,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:33,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:33,734 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:02:33,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:33,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:33,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:33,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:33,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:33,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:33,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:33,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:33,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:33,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:33,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:33,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:33,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:33,740 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:33,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:33,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:33,741 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_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 305ca34367a0384e1cfb307304cf4f5bc67454529c9c0988e189092c0a2626a1 [2022-11-18 20:02:34,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:34,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:34,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:34,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:34,144 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:34,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i [2022-11-18 20:02:34,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/data/63f1f4b3a/9cd280c92b4141b39e46f5be1f1cb32a/FLAG5854069bc [2022-11-18 20:02:34,893 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:34,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i [2022-11-18 20:02:34,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/data/63f1f4b3a/9cd280c92b4141b39e46f5be1f1cb32a/FLAG5854069bc [2022-11-18 20:02:35,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/data/63f1f4b3a/9cd280c92b4141b39e46f5be1f1cb32a [2022-11-18 20:02:35,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:35,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:35,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:35,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:35,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:35,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:35" (1/1) ... [2022-11-18 20:02:35,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ef4d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:35, skipping insertion in model container [2022-11-18 20:02:35,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:35" (1/1) ... [2022-11-18 20:02:35,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:35,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:35,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:35,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:35,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:36,033 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:36,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36 WrapperNode [2022-11-18 20:02:36,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:36,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:36,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:36,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:36,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,134 INFO L138 Inliner]: procedures = 262, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-11-18 20:02:36,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:36,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:36,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:36,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:36,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,191 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:36,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:36,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:36,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:36,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (1/1) ... [2022-11-18 20:02:36,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:36,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:36,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:36,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:02:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:02:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:02:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:02:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:02:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:02:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:02:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:02:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:02:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:36,316 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 20:02:36,564 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:36,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:36,846 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:36,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:36,869 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:02:36,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:36 BoogieIcfgContainer [2022-11-18 20:02:36,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:36,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:36,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:36,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:36,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:35" (1/3) ... [2022-11-18 20:02:36,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c3cd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:36, skipping insertion in model container [2022-11-18 20:02:36,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:36" (2/3) ... [2022-11-18 20:02:36,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c3cd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:36, skipping insertion in model container [2022-11-18 20:02:36,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:36" (3/3) ... [2022-11-18 20:02:36,882 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_45-escape_rc.i [2022-11-18 20:02:36,892 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:02:36,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:36,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-18 20:02:36,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:02:36,989 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:02:37,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 96 transitions, 200 flow [2022-11-18 20:02:37,096 INFO L130 PetriNetUnfolder]: 0/95 cut-off events. [2022-11-18 20:02:37,097 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:02:37,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 0/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-18 20:02:37,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 96 transitions, 200 flow [2022-11-18 20:02:37,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 85 transitions, 173 flow [2022-11-18 20:02:37,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:37,142 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;@2fc7a7a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:37,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:02:37,172 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-18 20:02:37,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:02:37,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:37,173 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] [2022-11-18 20:02:37,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:02:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1281252136, now seen corresponding path program 1 times [2022-11-18 20:02:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:37,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027855396] [2022-11-18 20:02:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:37,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:38,116 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 20:02:38,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:38,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027855396] [2022-11-18 20:02:38,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027855396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:38,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:38,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858600243] [2022-11-18 20:02:38,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:38,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:38,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:38,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:38,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2022-11-18 20:02:38,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 20:02:38,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:38,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2022-11-18 20:02:38,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:38,789 INFO L130 PetriNetUnfolder]: 263/781 cut-off events. [2022-11-18 20:02:38,790 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:02:38,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 781 events. 263/781 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4152 event pairs, 158 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 1317. Up to 436 conditions per place. [2022-11-18 20:02:38,800 INFO L137 encePairwiseOnDemand]: 85/96 looper letters, 67 selfloop transitions, 22 changer transitions 0/139 dead transitions. [2022-11-18 20:02:38,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 139 transitions, 459 flow [2022-11-18 20:02:38,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:02:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2022-11-18 20:02:38,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2022-11-18 20:02:38,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2022-11-18 20:02:38,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2022-11-18 20:02:38,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:38,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2022-11-18 20:02:38,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 20:02:38,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:38,862 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:38,865 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 173 flow. Second operand 6 states and 438 transitions. [2022-11-18 20:02:38,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 139 transitions, 459 flow [2022-11-18 20:02:38,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 139 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:02:38,883 INFO L231 Difference]: Finished difference. Result has 98 places, 106 transitions, 322 flow [2022-11-18 20:02:38,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=322, PETRI_PLACES=98, PETRI_TRANSITIONS=106} [2022-11-18 20:02:38,892 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2022-11-18 20:02:38,893 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 106 transitions, 322 flow [2022-11-18 20:02:38,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 20:02:38,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:38,894 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] [2022-11-18 20:02:38,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:02:38,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:02:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:38,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1813267289, now seen corresponding path program 1 times [2022-11-18 20:02:38,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:38,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082700460] [2022-11-18 20:02:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:38,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:39,325 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 20:02:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:39,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082700460] [2022-11-18 20:02:39,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082700460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:39,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:39,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:39,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364773488] [2022-11-18 20:02:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:39,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:39,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:39,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:39,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2022-11-18 20:02:39,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 106 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 20:02:39,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:39,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2022-11-18 20:02:39,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:39,977 INFO L130 PetriNetUnfolder]: 345/1002 cut-off events. [2022-11-18 20:02:39,977 INFO L131 PetriNetUnfolder]: For 271/279 co-relation queries the response was YES. [2022-11-18 20:02:39,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1002 events. 345/1002 cut-off events. For 271/279 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5816 event pairs, 126 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 2037. Up to 538 conditions per place. [2022-11-18 20:02:39,994 INFO L137 encePairwiseOnDemand]: 85/96 looper letters, 103 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-18 20:02:39,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 180 transitions, 818 flow [2022-11-18 20:02:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:02:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2022-11-18 20:02:39,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8246527777777778 [2022-11-18 20:02:39,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2022-11-18 20:02:39,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2022-11-18 20:02:39,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:39,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2022-11-18 20:02:40,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 20:02:40,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:40,003 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:40,003 INFO L175 Difference]: Start difference. First operand has 98 places, 106 transitions, 322 flow. Second operand 6 states and 475 transitions. [2022-11-18 20:02:40,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 180 transitions, 818 flow [2022-11-18 20:02:40,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 180 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:02:40,015 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 506 flow [2022-11-18 20:02:40,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-18 20:02:40,016 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2022-11-18 20:02:40,017 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 506 flow [2022-11-18 20:02:40,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 20:02:40,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:40,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:40,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:02:40,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:02:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:40,020 INFO L85 PathProgramCache]: Analyzing trace with hash 46398145, now seen corresponding path program 1 times [2022-11-18 20:02:40,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:40,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561055739] [2022-11-18 20:02:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:40,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:40,472 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 20:02:40,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561055739] [2022-11-18 20:02:40,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561055739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:40,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:40,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:40,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692800290] [2022-11-18 20:02:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:40,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:40,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:40,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:40,479 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2022-11-18 20:02:40,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 127 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:40,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:40,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2022-11-18 20:02:40,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:40,965 INFO L130 PetriNetUnfolder]: 402/1149 cut-off events. [2022-11-18 20:02:40,965 INFO L131 PetriNetUnfolder]: For 760/773 co-relation queries the response was YES. [2022-11-18 20:02:40,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1149 events. 402/1149 cut-off events. For 760/773 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7028 event pairs, 154 based on Foata normal form. 4/1071 useless extension candidates. Maximal degree in co-relation 2831. Up to 747 conditions per place. [2022-11-18 20:02:40,977 INFO L137 encePairwiseOnDemand]: 81/96 looper letters, 90 selfloop transitions, 53 changer transitions 0/191 dead transitions. [2022-11-18 20:02:40,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 191 transitions, 1080 flow [2022-11-18 20:02:40,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:02:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 427 transitions. [2022-11-18 20:02:40,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7413194444444444 [2022-11-18 20:02:40,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 427 transitions. [2022-11-18 20:02:40,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 427 transitions. [2022-11-18 20:02:40,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:40,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 427 transitions. [2022-11-18 20:02:40,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 20:02:40,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:40,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:40,984 INFO L175 Difference]: Start difference. First operand has 108 places, 127 transitions, 506 flow. Second operand 6 states and 427 transitions. [2022-11-18 20:02:40,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 191 transitions, 1080 flow [2022-11-18 20:02:40,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 191 transitions, 1080 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:02:41,000 INFO L231 Difference]: Finished difference. Result has 118 places, 174 transitions, 988 flow [2022-11-18 20:02:41,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=988, PETRI_PLACES=118, PETRI_TRANSITIONS=174} [2022-11-18 20:02:41,003 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-18 20:02:41,003 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 174 transitions, 988 flow [2022-11-18 20:02:41,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:41,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:41,004 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:41,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:02:41,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:02:41,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash 297776862, now seen corresponding path program 1 times [2022-11-18 20:02:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:41,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721175898] [2022-11-18 20:02:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:41,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:41,385 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 20:02:41,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721175898] [2022-11-18 20:02:41,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721175898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:41,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:41,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460901397] [2022-11-18 20:02:41,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:41,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:41,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:41,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 96 [2022-11-18 20:02:41,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 174 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 20:02:41,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:41,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 96 [2022-11-18 20:02:41,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:41,995 INFO L130 PetriNetUnfolder]: 579/1520 cut-off events. [2022-11-18 20:02:41,996 INFO L131 PetriNetUnfolder]: For 1834/1844 co-relation queries the response was YES. [2022-11-18 20:02:42,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4549 conditions, 1520 events. 579/1520 cut-off events. For 1834/1844 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 9436 event pairs, 179 based on Foata normal form. 0/1447 useless extension candidates. Maximal degree in co-relation 4501. Up to 1010 conditions per place. [2022-11-18 20:02:42,010 INFO L137 encePairwiseOnDemand]: 77/96 looper letters, 132 selfloop transitions, 83 changer transitions 4/269 dead transitions. [2022-11-18 20:02:42,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 269 transitions, 1892 flow [2022-11-18 20:02:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:42,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:02:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2022-11-18 20:02:42,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8125 [2022-11-18 20:02:42,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2022-11-18 20:02:42,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2022-11-18 20:02:42,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:42,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2022-11-18 20:02:42,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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 20:02:42,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:42,020 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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 20:02:42,024 INFO L175 Difference]: Start difference. First operand has 118 places, 174 transitions, 988 flow. Second operand 6 states and 468 transitions. [2022-11-18 20:02:42,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 269 transitions, 1892 flow [2022-11-18 20:02:42,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 269 transitions, 1828 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-18 20:02:42,048 INFO L231 Difference]: Finished difference. Result has 128 places, 243 transitions, 1680 flow [2022-11-18 20:02:42,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1680, PETRI_PLACES=128, PETRI_TRANSITIONS=243} [2022-11-18 20:02:42,049 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2022-11-18 20:02:42,049 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 243 transitions, 1680 flow [2022-11-18 20:02:42,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 20:02:42,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:42,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:42,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:02:42,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:02:42,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:42,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1034532553, now seen corresponding path program 1 times [2022-11-18 20:02:42,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:42,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386349016] [2022-11-18 20:02:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:42,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:02:42,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:02:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:02:42,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:02:42,165 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:02:42,166 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-18 20:02:42,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-18 20:02:42,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-18 20:02:42,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-18 20:02:42,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2022-11-18 20:02:42,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-18 20:02:42,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-18 20:02:42,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-18 20:02:42,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:02:42,171 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:02:42,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:02:42,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:02:42,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:02:42 BasicIcfg [2022-11-18 20:02:42,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:02:42,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:02:42,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:02:42,266 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:02:42,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:36" (3/4) ... [2022-11-18 20:02:42,269 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:02:42,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:02:42,270 INFO L158 Benchmark]: Toolchain (without parser) took 7026.55ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 114.1MB in the beginning and 120.1MB in the end (delta: -6.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,270 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 63.5MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:42,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.34ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 107.5MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.15ms. Allocated memory is still 151.0MB. Free memory was 107.5MB in the beginning and 104.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,271 INFO L158 Benchmark]: Boogie Preprocessor took 66.04ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 103.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,271 INFO L158 Benchmark]: RCFGBuilder took 669.13ms. Allocated memory is still 151.0MB. Free memory was 103.2MB in the beginning and 126.1MB in the end (delta: -22.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,272 INFO L158 Benchmark]: TraceAbstraction took 5391.18ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 126.1MB in the beginning and 120.1MB in the end (delta: 5.9MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2022-11-18 20:02:42,272 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 220.2MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:42,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 63.5MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.34ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 107.5MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.15ms. Allocated memory is still 151.0MB. Free memory was 107.5MB in the beginning and 104.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.04ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 103.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 669.13ms. Allocated memory is still 151.0MB. Free memory was 103.2MB in the beginning and 126.1MB in the end (delta: -22.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5391.18ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 126.1MB in the beginning and 120.1MB in the end (delta: 5.9MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 220.2MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 922]: Data race detected Data race detected The following path leads to a data race: [L918] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex2={1:0}] [L917] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, mutex2={1:0}] [L927] 0 pthread_t id; VAL [id={6:0}, mutex1={2:0}, mutex2={1:0}] [L928] 0 int i; VAL [i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L931] EXPR 0 \read(i) VAL [\read(i)=-3, arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}] [L931] 0 i++ VAL [\read(i)=-3, arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}] [L920] 1 int *p = (int *) arg; VAL [arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] EXPR 1 \read(*p) VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, i++=25, i++=-3, id={6:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={2:0}, mutex2={1:0}, p={5:0}] Now there is a data race (on the heap) between C: i++ [931] and C: (*p)++ [922] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: 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, 125 locations, 8 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: 5.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 806 IncrementalHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 116 mSDtfsCounter, 806 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1680occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:02:42,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe3cbb3-7d53-4e9b-a5a1-ff554445ec7b/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