./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a --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 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- 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-b5237d8 [2022-11-21 16:57:08,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:57:08,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:57:08,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:57:08,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:57:08,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:57:08,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:57:08,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:57:08,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:57:08,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:57:08,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:57:08,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:57:08,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:57:08,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:57:08,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:57:08,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:57:08,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:57:08,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:57:08,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:57:08,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:57:08,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:57:08,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:57:08,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:57:08,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:57:08,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:57:08,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:57:08,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:57:08,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:57:08,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:57:08,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:57:08,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:57:08,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:57:08,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:57:08,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:57:08,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:57:08,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:57:08,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:57:08,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:57:08,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:57:08,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:57:08,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:57:08,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:57:08,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:57:08,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:57:08,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:57:08,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:57:08,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:57:08,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:57:08,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:57:08,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:57:08,931 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:57:08,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:57:08,931 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:57:08,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:57:08,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:57:08,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:57:08,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:57:08,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:57:08,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:57:08,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:57:08,933 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:57:08,933 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:57:08,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:57:08,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:57:08,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:57:08,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:57:08,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:57:08,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:57:08,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:57:08,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:57:08,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:57:08,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:57:08,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:57:08,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:57:08,936 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:57:08,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:57:08,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:57:08,937 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_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2022-11-21 16:57:09,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:57:09,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:57:09,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:57:09,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:57:09,242 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:57:09,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-21 16:57:12,192 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:57:12,599 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:57:12,599 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-21 16:57:12,626 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/data/b3c56c0db/6dfadfb555184075a6c6d04ae227a65c/FLAGec114c446 [2022-11-21 16:57:12,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/data/b3c56c0db/6dfadfb555184075a6c6d04ae227a65c [2022-11-21 16:57:12,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:57:12,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:57:12,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:57:12,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:57:12,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:57:12,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:57:12" (1/1) ... [2022-11-21 16:57:12,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3324d1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:12, skipping insertion in model container [2022-11-21 16:57:12,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:57:12" (1/1) ... [2022-11-21 16:57:12,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:57:12,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:57:12,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-21 16:57:13,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:57:13,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:57:13,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-21 16:57:13,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:57:13,494 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:57:13,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13 WrapperNode [2022-11-21 16:57:13,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:57:13,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:57:13,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:57:13,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:57:13,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,597 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2022-11-21 16:57:13,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:57:13,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:57:13,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:57:13,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:57:13,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:57:13,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:57:13,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:57:13,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:57:13,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (1/1) ... [2022-11-21 16:57:13,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:57:13,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:57:13,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:57:13,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:57:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-21 16:57:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-21 16:57:13,766 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-21 16:57:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-21 16:57:13,766 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:57:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:57:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:57:13,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:57:13,769 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:57:14,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:57:14,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:57:14,392 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:57:14,400 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:57:14,400 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:57:14,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:57:14 BoogieIcfgContainer [2022-11-21 16:57:14,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:57:14,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:57:14,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:57:14,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:57:14,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:57:12" (1/3) ... [2022-11-21 16:57:14,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c0b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:57:14, skipping insertion in model container [2022-11-21 16:57:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:57:13" (2/3) ... [2022-11-21 16:57:14,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c0b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:57:14, skipping insertion in model container [2022-11-21 16:57:14,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:57:14" (3/3) ... [2022-11-21 16:57:14,412 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-21 16:57:14,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:57:14,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:57:14,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-21 16:57:14,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:57:14,516 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:57:14,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 126 transitions, 268 flow [2022-11-21 16:57:14,609 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-21 16:57:14,609 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:57:14,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 124 events. 1/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-11-21 16:57:14,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 126 transitions, 268 flow [2022-11-21 16:57:14,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 114 transitions, 237 flow [2022-11-21 16:57:14,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:57:14,649 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;@665b30cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:57:14,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-21 16:57:14,664 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-21 16:57:14,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:57:14,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:14,665 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] [2022-11-21 16:57:14,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 185834505, now seen corresponding path program 1 times [2022-11-21 16:57:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:14,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765651577] [2022-11-21 16:57:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:14,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:15,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:15,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765651577] [2022-11-21 16:57:15,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765651577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:15,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:15,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:57:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425384810] [2022-11-21 16:57:15,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:15,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:57:15,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:57:15,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:57:15,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-21 16:57:15,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 114 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-21 16:57:15,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:15,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-21 16:57:15,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:15,444 INFO L130 PetriNetUnfolder]: 91/467 cut-off events. [2022-11-21 16:57:15,444 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-21 16:57:15,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 467 events. 91/467 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2226 event pairs, 55 based on Foata normal form. 8/396 useless extension candidates. Maximal degree in co-relation 583. Up to 173 conditions per place. [2022-11-21 16:57:15,456 INFO L137 encePairwiseOnDemand]: 119/126 looper letters, 24 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2022-11-21 16:57:15,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 121 transitions, 312 flow [2022-11-21 16:57:15,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:57:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:57:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2022-11-21 16:57:15,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9021164021164021 [2022-11-21 16:57:15,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2022-11-21 16:57:15,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2022-11-21 16:57:15,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:15,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2022-11-21 16:57:15,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2022-11-21 16:57:15,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:15,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:15,505 INFO L175 Difference]: Start difference. First operand has 120 places, 114 transitions, 237 flow. Second operand 3 states and 341 transitions. [2022-11-21 16:57:15,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 121 transitions, 312 flow [2022-11-21 16:57:15,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 121 transitions, 306 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:57:15,516 INFO L231 Difference]: Finished difference. Result has 120 places, 116 transitions, 266 flow [2022-11-21 16:57:15,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=120, PETRI_TRANSITIONS=116} [2022-11-21 16:57:15,522 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2022-11-21 16:57:15,522 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 116 transitions, 266 flow [2022-11-21 16:57:15,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-21 16:57:15,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:15,523 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] [2022-11-21 16:57:15,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:57:15,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:15,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:15,524 INFO L85 PathProgramCache]: Analyzing trace with hash -505657124, now seen corresponding path program 1 times [2022-11-21 16:57:15,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:15,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944868407] [2022-11-21 16:57:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:15,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:15,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944868407] [2022-11-21 16:57:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944868407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:15,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:15,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:57:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635056532] [2022-11-21 16:57:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:15,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:57:15,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:57:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:57:15,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 126 [2022-11-21 16:57:15,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:57:15,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:15,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 126 [2022-11-21 16:57:15,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:15,904 INFO L130 PetriNetUnfolder]: 80/480 cut-off events. [2022-11-21 16:57:15,904 INFO L131 PetriNetUnfolder]: For 80/94 co-relation queries the response was YES. [2022-11-21 16:57:15,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 480 events. 80/480 cut-off events. For 80/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2443 event pairs, 32 based on Foata normal form. 1/419 useless extension candidates. Maximal degree in co-relation 660. Up to 118 conditions per place. [2022-11-21 16:57:15,910 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 29 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-21 16:57:15,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 133 transitions, 399 flow [2022-11-21 16:57:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:57:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:57:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2022-11-21 16:57:15,913 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2022-11-21 16:57:15,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2022-11-21 16:57:15,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2022-11-21 16:57:15,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:15,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2022-11-21 16:57:15,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-21 16:57:15,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:15,919 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:15,919 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 266 flow. Second operand 3 states and 350 transitions. [2022-11-21 16:57:15,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 133 transitions, 399 flow [2022-11-21 16:57:15,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 133 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:57:15,928 INFO L231 Difference]: Finished difference. Result has 122 places, 124 transitions, 336 flow [2022-11-21 16:57:15,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=122, PETRI_TRANSITIONS=124} [2022-11-21 16:57:15,931 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places. [2022-11-21 16:57:15,931 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 124 transitions, 336 flow [2022-11-21 16:57:15,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:57:15,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:15,933 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, 1, 1, 1] [2022-11-21 16:57:15,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:57:15,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1667508560, now seen corresponding path program 1 times [2022-11-21 16:57:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:15,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650560738] [2022-11-21 16:57:15,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:15,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:16,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650560738] [2022-11-21 16:57:16,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650560738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:16,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:16,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:57:16,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106334382] [2022-11-21 16:57:16,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:16,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:57:16,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:57:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:57:16,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2022-11-21 16:57:16,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 124 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 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) [2022-11-21 16:57:16,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:16,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2022-11-21 16:57:16,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:16,836 INFO L130 PetriNetUnfolder]: 26/307 cut-off events. [2022-11-21 16:57:16,836 INFO L131 PetriNetUnfolder]: For 71/104 co-relation queries the response was YES. [2022-11-21 16:57:16,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 307 events. 26/307 cut-off events. For 71/104 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1283 event pairs, 5 based on Foata normal form. 17/295 useless extension candidates. Maximal degree in co-relation 427. Up to 33 conditions per place. [2022-11-21 16:57:16,839 INFO L137 encePairwiseOnDemand]: 121/126 looper letters, 14 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2022-11-21 16:57:16,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 123 transitions, 370 flow [2022-11-21 16:57:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:57:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:57:16,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2022-11-21 16:57:16,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8346560846560847 [2022-11-21 16:57:16,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 631 transitions. [2022-11-21 16:57:16,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 631 transitions. [2022-11-21 16:57:16,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:16,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 631 transitions. [2022-11-21 16:57:16,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 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) [2022-11-21 16:57:16,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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) [2022-11-21 16:57:16,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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) [2022-11-21 16:57:16,850 INFO L175 Difference]: Start difference. First operand has 122 places, 124 transitions, 336 flow. Second operand 6 states and 631 transitions. [2022-11-21 16:57:16,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 123 transitions, 370 flow [2022-11-21 16:57:16,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:57:16,857 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 324 flow [2022-11-21 16:57:16,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2022-11-21 16:57:16,862 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2022-11-21 16:57:16,862 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 324 flow [2022-11-21 16:57:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 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) [2022-11-21 16:57:16,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:16,863 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, 1, 1, 1, 1, 1] [2022-11-21 16:57:16,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:57:16,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting f1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash 991025859, now seen corresponding path program 1 times [2022-11-21 16:57:16,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988260489] [2022-11-21 16:57:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:16,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:16,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988260489] [2022-11-21 16:57:16,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988260489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:16,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:16,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:57:16,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014961185] [2022-11-21 16:57:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:16,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:57:16,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:57:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:57:16,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-21 16:57:16,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:57:16,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:16,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-21 16:57:16,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:17,092 INFO L130 PetriNetUnfolder]: 99/542 cut-off events. [2022-11-21 16:57:17,092 INFO L131 PetriNetUnfolder]: For 158/198 co-relation queries the response was YES. [2022-11-21 16:57:17,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 542 events. 99/542 cut-off events. For 158/198 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2880 event pairs, 45 based on Foata normal form. 2/475 useless extension candidates. Maximal degree in co-relation 869. Up to 192 conditions per place. [2022-11-21 16:57:17,098 INFO L137 encePairwiseOnDemand]: 120/126 looper letters, 35 selfloop transitions, 7 changer transitions 0/134 dead transitions. [2022-11-21 16:57:17,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 450 flow [2022-11-21 16:57:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:57:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:57:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2022-11-21 16:57:17,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2022-11-21 16:57:17,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2022-11-21 16:57:17,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2022-11-21 16:57:17,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:17,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2022-11-21 16:57:17,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2022-11-21 16:57:17,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,125 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 324 flow. Second operand 3 states and 339 transitions. [2022-11-21 16:57:17,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 450 flow [2022-11-21 16:57:17,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 134 transitions, 443 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:57:17,134 INFO L231 Difference]: Finished difference. Result has 124 places, 128 transitions, 379 flow [2022-11-21 16:57:17,134 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=124, PETRI_TRANSITIONS=128} [2022-11-21 16:57:17,140 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2022-11-21 16:57:17,140 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 128 transitions, 379 flow [2022-11-21 16:57:17,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:57:17,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:17,142 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:17,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:57:17,144 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:17,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:17,144 INFO L85 PathProgramCache]: Analyzing trace with hash 186826540, now seen corresponding path program 1 times [2022-11-21 16:57:17,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:17,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003991877] [2022-11-21 16:57:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:17,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:17,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003991877] [2022-11-21 16:57:17,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003991877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:17,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:17,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:57:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797992697] [2022-11-21 16:57:17,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:17,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:57:17,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:17,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:57:17,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:57:17,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2022-11-21 16:57:17,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 128 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-21 16:57:17,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:17,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2022-11-21 16:57:17,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:17,402 INFO L130 PetriNetUnfolder]: 8/208 cut-off events. [2022-11-21 16:57:17,402 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-21 16:57:17,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 208 events. 8/208 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 544 event pairs, 2 based on Foata normal form. 4/202 useless extension candidates. Maximal degree in co-relation 213. Up to 23 conditions per place. [2022-11-21 16:57:17,403 INFO L137 encePairwiseOnDemand]: 120/126 looper letters, 11 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-21 16:57:17,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 109 transitions, 298 flow [2022-11-21 16:57:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:57:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:57:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-11-21 16:57:17,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2022-11-21 16:57:17,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-11-21 16:57:17,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-11-21 16:57:17,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:17,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-11-21 16:57:17,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2022-11-21 16:57:17,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,410 INFO L175 Difference]: Start difference. First operand has 124 places, 128 transitions, 379 flow. Second operand 3 states and 344 transitions. [2022-11-21 16:57:17,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 109 transitions, 298 flow [2022-11-21 16:57:17,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 260 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-21 16:57:17,415 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 231 flow [2022-11-21 16:57:17,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2022-11-21 16:57:17,417 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2022-11-21 16:57:17,418 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 231 flow [2022-11-21 16:57:17,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2022-11-21 16:57:17,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:17,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:17,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:57:17,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -741440573, now seen corresponding path program 1 times [2022-11-21 16:57:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:17,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509371644] [2022-11-21 16:57:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:17,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:17,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509371644] [2022-11-21 16:57:17,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509371644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:17,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:17,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:57:17,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828744028] [2022-11-21 16:57:17,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:17,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:57:17,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:57:17,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:57:17,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-21 16:57:17,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2022-11-21 16:57:17,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:17,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-21 16:57:17,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:17,587 INFO L130 PetriNetUnfolder]: 14/237 cut-off events. [2022-11-21 16:57:17,588 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-21 16:57:17,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 237 events. 14/237 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 721 event pairs, 12 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 226. Up to 49 conditions per place. [2022-11-21 16:57:17,589 INFO L137 encePairwiseOnDemand]: 123/126 looper letters, 14 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-21 16:57:17,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 107 transitions, 264 flow [2022-11-21 16:57:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:57:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:57:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2022-11-21 16:57:17,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8624338624338624 [2022-11-21 16:57:17,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2022-11-21 16:57:17,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2022-11-21 16:57:17,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:17,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2022-11-21 16:57:17,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-11-21 16:57:17,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:57:17,595 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 231 flow. Second operand 3 states and 326 transitions. [2022-11-21 16:57:17,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 107 transitions, 264 flow [2022-11-21 16:57:17,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 107 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:57:17,598 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 227 flow [2022-11-21 16:57:17,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2022-11-21 16:57:17,601 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2022-11-21 16:57:17,601 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 227 flow [2022-11-21 16:57:17,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2022-11-21 16:57:17,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:57:17,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:17,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:57:17,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-21 16:57:17,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:17,603 INFO L85 PathProgramCache]: Analyzing trace with hash 345497952, now seen corresponding path program 1 times [2022-11-21 16:57:17,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:17,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143555934] [2022-11-21 16:57:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:17,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:57:18,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:18,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143555934] [2022-11-21 16:57:18,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143555934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:18,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:18,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:57:18,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562008290] [2022-11-21 16:57:18,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:18,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:57:18,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:18,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:57:18,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:57:18,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2022-11-21 16:57:18,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2022-11-21 16:57:18,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:57:18,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2022-11-21 16:57:18,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:57:18,295 INFO L130 PetriNetUnfolder]: 2/168 cut-off events. [2022-11-21 16:57:18,296 INFO L131 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-11-21 16:57:18,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 168 events. 2/168 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 302 event pairs, 2 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 154. Up to 15 conditions per place. [2022-11-21 16:57:18,296 INFO L137 encePairwiseOnDemand]: 121/126 looper letters, 0 selfloop transitions, 0 changer transitions 105/105 dead transitions. [2022-11-21 16:57:18,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 105 transitions, 259 flow [2022-11-21 16:57:18,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:57:18,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:57:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2022-11-21 16:57:18,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-21 16:57:18,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2022-11-21 16:57:18,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2022-11-21 16:57:18,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:57:18,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2022-11-21 16:57:18,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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) [2022-11-21 16:57:18,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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) [2022-11-21 16:57:18,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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) [2022-11-21 16:57:18,306 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 227 flow. Second operand 6 states and 630 transitions. [2022-11-21 16:57:18,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 105 transitions, 259 flow [2022-11-21 16:57:18,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 105 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:57:18,308 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-21 16:57:18,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-21 16:57:18,309 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -4 predicate places. [2022-11-21 16:57:18,309 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-21 16:57:18,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2022-11-21 16:57:18,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-21 16:57:18,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-21 16:57:18,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 14 remaining) [2022-11-21 16:57:18,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 14 remaining) [2022-11-21 16:57:18,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-21 16:57:18,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-21 16:57:18,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-21 16:57:18,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-21 16:57:18,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-21 16:57:18,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-21 16:57:18,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-21 16:57:18,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-21 16:57:18,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-21 16:57:18,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-21 16:57:18,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:57:18,319 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:18,325 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:57:18,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:57:18,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:57:18 BasicIcfg [2022-11-21 16:57:18,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:57:18,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:57:18,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:57:18,333 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:57:18,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:57:14" (3/4) ... [2022-11-21 16:57:18,336 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:57:18,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2022-11-21 16:57:18,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2022-11-21 16:57:18,347 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-21 16:57:18,348 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:57:18,348 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:57:18,348 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:57:18,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:57:18,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:57:18,393 INFO L158 Benchmark]: Toolchain (without parser) took 5741.47ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 154.0MB in the beginning and 180.8MB in the end (delta: -26.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,393 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:57:18,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 842.01ms. Allocated memory is still 182.5MB. Free memory was 153.6MB in the beginning and 115.3MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.56ms. Allocated memory is still 182.5MB. Free memory was 115.3MB in the beginning and 112.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,394 INFO L158 Benchmark]: Boogie Preprocessor took 86.62ms. Allocated memory is still 182.5MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,394 INFO L158 Benchmark]: RCFGBuilder took 716.97ms. Allocated memory is still 182.5MB. Free memory was 109.5MB in the beginning and 88.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,395 INFO L158 Benchmark]: TraceAbstraction took 3927.29ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 87.6MB in the beginning and 184.0MB in the end (delta: -96.4MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,395 INFO L158 Benchmark]: Witness Printer took 59.41ms. Allocated memory is still 224.4MB. Free memory was 184.0MB in the beginning and 180.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:57:18,397 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 130.0MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 842.01ms. Allocated memory is still 182.5MB. Free memory was 153.6MB in the beginning and 115.3MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.56ms. Allocated memory is still 182.5MB. Free memory was 115.3MB in the beginning and 112.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.62ms. Allocated memory is still 182.5MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 716.97ms. Allocated memory is still 182.5MB. Free memory was 109.5MB in the beginning and 88.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3927.29ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 87.6MB in the beginning and 184.0MB in the end (delta: -96.4MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. * Witness Printer took 59.41ms. Allocated memory is still 224.4MB. Free memory was 184.0MB in the beginning and 180.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1378]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1379]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1356]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1358]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1359]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1365]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1366]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 178 locations, 14 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 87 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=379occurred in iteration=4, InterpolantAutomatonStates: 27, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 415 NumberOfCodeBlocks, 415 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 408 ConstructedInterpolants, 0 QuantifiedInterpolants, 662 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:57:18,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfbae2-f98f-4834-bbc6-15e5b9e8b86b/bin/uautomizer-vX5HgA9Q3a/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 Result: TRUE