./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c --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_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/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_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/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_9494aa40-58f2-421a-9631-53b6a67b1c0f/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 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 --- 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 16:10:55,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:10:55,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:10:55,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:10:55,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:10:55,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:10:55,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:10:55,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:10:55,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:10:55,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:10:55,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:10:55,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:10:55,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:10:55,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:10:55,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:10:55,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:10:55,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:10:55,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:10:55,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:10:55,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:10:55,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:10:55,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:10:55,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:10:55,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:10:55,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:10:55,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:10:55,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:10:55,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:10:55,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:10:55,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:10:55,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:10:55,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:10:55,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:10:55,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:10:55,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:10:55,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:10:55,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:10:55,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:10:55,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:10:55,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:10:55,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:10:55,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:10:55,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:10:55,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:10:55,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:10:55,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:10:55,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:10:55,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:10:55,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:10:55,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:10:55,900 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:10:55,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:10:55,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:10:55,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:10:55,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:10:55,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:10:55,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:10:55,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:10:55,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:10:55,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:10:55,903 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:10:55,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:10:55,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:10:55,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:10:55,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:10:55,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:10:55,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:10:55,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:10:55,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:55,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:10:55,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:10:55,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:10:55,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:10:55,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:10:55,906 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:10:55,906 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:10:55,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:10:55,906 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_9494aa40-58f2-421a-9631-53b6a67b1c0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 [2022-11-21 16:10:56,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:10:56,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:10:56,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:10:56,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:10:56,188 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:10:56,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-11-21 16:10:59,226 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:10:59,483 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:10:59,483 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-11-21 16:10:59,490 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/data/7ebcf3f17/cad6a430504447baaf607a3c2bc08ae0/FLAGf15a6fada [2022-11-21 16:10:59,503 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/data/7ebcf3f17/cad6a430504447baaf607a3c2bc08ae0 [2022-11-21 16:10:59,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:10:59,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:10:59,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:59,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:10:59,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:10:59,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e36af43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59, skipping insertion in model container [2022-11-21 16:10:59,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:10:59,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:10:59,717 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_9494aa40-58f2-421a-9631-53b6a67b1c0f/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-11-21 16:10:59,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:59,747 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:10:59,786 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_9494aa40-58f2-421a-9631-53b6a67b1c0f/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-11-21 16:10:59,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:59,816 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:10:59,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59 WrapperNode [2022-11-21 16:10:59,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:59,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:59,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:10:59,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:10:59,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,890 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 197 [2022-11-21 16:10:59,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:59,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:10:59,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:10:59,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:10:59,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:10:59,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:10:59,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:10:59,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:10:59,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (1/1) ... [2022-11-21 16:10:59,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:59,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:00,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:11:00,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:11:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:11:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:11:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:11:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:11:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:11:00,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:11:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:11:00,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:11:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:11:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:11:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:11:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:11:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:11:00,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:11:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:11:00,057 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 16:11:00,194 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:11:00,196 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:11:00,713 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:11:01,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:11:01,081 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:11:01,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01 BoogieIcfgContainer [2022-11-21 16:11:01,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:11:01,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:11:01,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:11:01,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:11:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:10:59" (1/3) ... [2022-11-21 16:11:01,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479f1a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:11:01, skipping insertion in model container [2022-11-21 16:11:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:59" (2/3) ... [2022-11-21 16:11:01,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479f1a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:11:01, skipping insertion in model container [2022-11-21 16:11:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01" (3/3) ... [2022-11-21 16:11:01,093 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2022-11-21 16:11:01,102 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:11:01,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:11:01,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-21 16:11:01,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:11:01,216 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:11:01,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 166 transitions, 348 flow [2022-11-21 16:11:01,408 INFO L130 PetriNetUnfolder]: 9/164 cut-off events. [2022-11-21 16:11:01,408 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:11:01,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 164 events. 9/164 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 144 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2022-11-21 16:11:01,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 166 transitions, 348 flow [2022-11-21 16:11:01,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 146 transitions, 304 flow [2022-11-21 16:11:01,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:11:01,455 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;@6e79ac77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:11:01,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-21 16:11:01,467 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-11-21 16:11:01,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:11:01,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:01,469 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] [2022-11-21 16:11:01,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:01,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:01,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2043066771, now seen corresponding path program 1 times [2022-11-21 16:11:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:01,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899900480] [2022-11-21 16:11:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:01,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:01,740 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 16:11:01,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899900480] [2022-11-21 16:11:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899900480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:01,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100299020] [2022-11-21 16:11:01,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:01,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:01,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:01,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:01,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 166 [2022-11-21 16:11:01,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 146 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 16:11:01,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:01,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 166 [2022-11-21 16:11:01,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:01,986 INFO L130 PetriNetUnfolder]: 37/247 cut-off events. [2022-11-21 16:11:01,986 INFO L131 PetriNetUnfolder]: For 46/92 co-relation queries the response was YES. [2022-11-21 16:11:01,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 247 events. 37/247 cut-off events. For 46/92 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 732 event pairs, 24 based on Foata normal form. 3/211 useless extension candidates. Maximal degree in co-relation 206. Up to 77 conditions per place. [2022-11-21 16:11:01,992 INFO L137 encePairwiseOnDemand]: 150/166 looper letters, 18 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2022-11-21 16:11:01,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 316 flow [2022-11-21 16:11:01,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2022-11-21 16:11:02,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8514056224899599 [2022-11-21 16:11:02,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2022-11-21 16:11:02,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2022-11-21 16:11:02,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:02,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2022-11-21 16:11:02,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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 16:11:02,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,036 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,038 INFO L175 Difference]: Start difference. First operand has 145 places, 146 transitions, 304 flow. Second operand 3 states and 424 transitions. [2022-11-21 16:11:02,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 132 transitions, 316 flow [2022-11-21 16:11:02,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 132 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:02,046 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 268 flow [2022-11-21 16:11:02,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2022-11-21 16:11:02,052 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -11 predicate places. [2022-11-21 16:11:02,052 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 268 flow [2022-11-21 16:11:02,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 16:11:02,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:02,053 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] [2022-11-21 16:11:02,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:11:02,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:02,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1560823791, now seen corresponding path program 1 times [2022-11-21 16:11:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662043126] [2022-11-21 16:11:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:02,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:02,105 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 16:11:02,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662043126] [2022-11-21 16:11:02,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662043126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:02,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:02,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:02,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144340913] [2022-11-21 16:11:02,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:02,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:02,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:02,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 166 [2022-11-21 16:11:02,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 16:11:02,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:02,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 166 [2022-11-21 16:11:02,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:02,189 INFO L130 PetriNetUnfolder]: 26/215 cut-off events. [2022-11-21 16:11:02,190 INFO L131 PetriNetUnfolder]: For 6/34 co-relation queries the response was YES. [2022-11-21 16:11:02,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 215 events. 26/215 cut-off events. For 6/34 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 555 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 246. Up to 50 conditions per place. [2022-11-21 16:11:02,195 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 13 selfloop transitions, 1 changer transitions 0/127 dead transitions. [2022-11-21 16:11:02,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 290 flow [2022-11-21 16:11:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:02,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2022-11-21 16:11:02,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8353413654618473 [2022-11-21 16:11:02,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2022-11-21 16:11:02,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2022-11-21 16:11:02,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:02,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2022-11-21 16:11:02,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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 16:11:02,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,204 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,204 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 268 flow. Second operand 3 states and 416 transitions. [2022-11-21 16:11:02,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 290 flow [2022-11-21 16:11:02,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:02,212 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 260 flow [2022-11-21 16:11:02,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2022-11-21 16:11:02,215 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -16 predicate places. [2022-11-21 16:11:02,215 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 260 flow [2022-11-21 16:11:02,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 16:11:02,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:02,216 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 16:11:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:11:02,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:02,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 257005981, now seen corresponding path program 1 times [2022-11-21 16:11:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:02,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630142755] [2022-11-21 16:11:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:02,371 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 16:11:02,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:02,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630142755] [2022-11-21 16:11:02,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630142755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:02,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:02,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528238424] [2022-11-21 16:11:02,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:02,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:02,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:02,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:02,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 166 [2022-11-21 16:11:02,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 16:11:02,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:02,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 166 [2022-11-21 16:11:02,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:02,422 INFO L130 PetriNetUnfolder]: 12/165 cut-off events. [2022-11-21 16:11:02,422 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-21 16:11:02,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 165 events. 12/165 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 3 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 165. Up to 22 conditions per place. [2022-11-21 16:11:02,427 INFO L137 encePairwiseOnDemand]: 163/166 looper letters, 9 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2022-11-21 16:11:02,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 126 transitions, 280 flow [2022-11-21 16:11:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2022-11-21 16:11:02,431 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8614457831325302 [2022-11-21 16:11:02,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2022-11-21 16:11:02,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2022-11-21 16:11:02,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:02,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2022-11-21 16:11:02,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 16:11:02,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:02,436 INFO L175 Difference]: Start difference. First operand has 129 places, 127 transitions, 260 flow. Second operand 3 states and 429 transitions. [2022-11-21 16:11:02,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 126 transitions, 280 flow [2022-11-21 16:11:02,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 126 transitions, 279 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:11:02,440 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 261 flow [2022-11-21 16:11:02,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2022-11-21 16:11:02,442 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -16 predicate places. [2022-11-21 16:11:02,442 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 261 flow [2022-11-21 16:11:02,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 16:11:02,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:02,443 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] [2022-11-21 16:11:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:11:02,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1039513828, now seen corresponding path program 1 times [2022-11-21 16:11:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:02,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427458859] [2022-11-21 16:11:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:03,233 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 16:11:03,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:03,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427458859] [2022-11-21 16:11:03,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427458859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:03,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:03,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:03,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999184975] [2022-11-21 16:11:03,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:03,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:03,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:03,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:03,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 166 [2022-11-21 16:11:03,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 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 16:11:03,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:03,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 166 [2022-11-21 16:11:03,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:03,433 INFO L130 PetriNetUnfolder]: 52/230 cut-off events. [2022-11-21 16:11:03,433 INFO L131 PetriNetUnfolder]: For 1/6 co-relation queries the response was YES. [2022-11-21 16:11:03,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 230 events. 52/230 cut-off events. For 1/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 628 event pairs, 33 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 320. Up to 106 conditions per place. [2022-11-21 16:11:03,435 INFO L137 encePairwiseOnDemand]: 160/166 looper letters, 29 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2022-11-21 16:11:03,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 125 transitions, 327 flow [2022-11-21 16:11:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2022-11-21 16:11:03,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7339357429718876 [2022-11-21 16:11:03,439 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 731 transitions. [2022-11-21 16:11:03,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 731 transitions. [2022-11-21 16:11:03,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:03,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 731 transitions. [2022-11-21 16:11:03,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 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 16:11:03,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:03,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:03,448 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 261 flow. Second operand 6 states and 731 transitions. [2022-11-21 16:11:03,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 125 transitions, 327 flow [2022-11-21 16:11:03,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 125 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:11:03,454 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 265 flow [2022-11-21 16:11:03,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2022-11-21 16:11:03,461 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -14 predicate places. [2022-11-21 16:11:03,461 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 265 flow [2022-11-21 16:11:03,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 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 16:11:03,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:03,462 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] [2022-11-21 16:11:03,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:11:03,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:03,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:03,463 INFO L85 PathProgramCache]: Analyzing trace with hash 913951575, now seen corresponding path program 1 times [2022-11-21 16:11:03,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:03,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869553122] [2022-11-21 16:11:03,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:03,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:03,829 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 16:11:03,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:03,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869553122] [2022-11-21 16:11:03,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869553122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:03,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:03,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:03,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270520290] [2022-11-21 16:11:03,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:03,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:03,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:03,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:03,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 166 [2022-11-21 16:11:03,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 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 16:11:03,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:03,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 166 [2022-11-21 16:11:03,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:04,026 INFO L130 PetriNetUnfolder]: 52/229 cut-off events. [2022-11-21 16:11:04,026 INFO L131 PetriNetUnfolder]: For 2/7 co-relation queries the response was YES. [2022-11-21 16:11:04,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 229 events. 52/229 cut-off events. For 2/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 613 event pairs, 6 based on Foata normal form. 4/222 useless extension candidates. Maximal degree in co-relation 320. Up to 44 conditions per place. [2022-11-21 16:11:04,028 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 30 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2022-11-21 16:11:04,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 132 transitions, 347 flow [2022-11-21 16:11:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2022-11-21 16:11:04,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7640562248995983 [2022-11-21 16:11:04,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2022-11-21 16:11:04,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2022-11-21 16:11:04,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:04,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2022-11-21 16:11:04,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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 16:11:04,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:04,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:04,038 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 265 flow. Second operand 6 states and 761 transitions. [2022-11-21 16:11:04,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 132 transitions, 347 flow [2022-11-21 16:11:04,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 132 transitions, 337 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:11:04,041 INFO L231 Difference]: Finished difference. Result has 130 places, 124 transitions, 261 flow [2022-11-21 16:11:04,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=130, PETRI_TRANSITIONS=124} [2022-11-21 16:11:04,044 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -15 predicate places. [2022-11-21 16:11:04,044 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 124 transitions, 261 flow [2022-11-21 16:11:04,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 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 16:11:04,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:04,047 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, 1, 1, 1, 1] [2022-11-21 16:11:04,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:11:04,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:04,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1483686536, now seen corresponding path program 1 times [2022-11-21 16:11:04,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:04,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224226689] [2022-11-21 16:11:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,468 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 16:11:04,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:04,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224226689] [2022-11-21 16:11:04,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224226689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:04,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:04,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:11:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403056791] [2022-11-21 16:11:04,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:04,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:04,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:04,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 166 [2022-11-21 16:11:04,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 124 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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 16:11:04,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:04,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 166 [2022-11-21 16:11:04,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:04,609 INFO L130 PetriNetUnfolder]: 49/216 cut-off events. [2022-11-21 16:11:04,609 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 16:11:04,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 216 events. 49/216 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 563 event pairs, 25 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 303. Up to 80 conditions per place. [2022-11-21 16:11:04,611 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 25 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2022-11-21 16:11:04,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 127 transitions, 325 flow [2022-11-21 16:11:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:11:04,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:11:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 756 transitions. [2022-11-21 16:11:04,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7590361445783133 [2022-11-21 16:11:04,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 756 transitions. [2022-11-21 16:11:04,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 756 transitions. [2022-11-21 16:11:04,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:04,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 756 transitions. [2022-11-21 16:11:04,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 16:11:04,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:04,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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 16:11:04,619 INFO L175 Difference]: Start difference. First operand has 130 places, 124 transitions, 261 flow. Second operand 6 states and 756 transitions. [2022-11-21 16:11:04,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 127 transitions, 325 flow [2022-11-21 16:11:04,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 318 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:04,622 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 260 flow [2022-11-21 16:11:04,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, 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=260, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2022-11-21 16:11:04,623 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -15 predicate places. [2022-11-21 16:11:04,623 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 260 flow [2022-11-21 16:11:04,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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 16:11:04,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:04,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:11:04,624 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-21 16:11:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1116106751, now seen corresponding path program 1 times [2022-11-21 16:11:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:04,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107877859] [2022-11-21 16:11:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,681 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 16:11:04,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:04,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107877859] [2022-11-21 16:11:04,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107877859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:04,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:04,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:11:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711668860] [2022-11-21 16:11:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:04,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:04,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:04,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 166 [2022-11-21 16:11:04,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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 16:11:04,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:11:04,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 166 [2022-11-21 16:11:04,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:04,721 INFO L130 PetriNetUnfolder]: 12/161 cut-off events. [2022-11-21 16:11:04,721 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-21 16:11:04,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 161 events. 12/161 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 3 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 173. Up to 19 conditions per place. [2022-11-21 16:11:04,722 INFO L137 encePairwiseOnDemand]: 164/166 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2022-11-21 16:11:04,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 122 transitions, 272 flow [2022-11-21 16:11:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:11:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2022-11-21 16:11:04,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8714859437751004 [2022-11-21 16:11:04,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2022-11-21 16:11:04,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2022-11-21 16:11:04,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:04,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2022-11-21 16:11:04,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 16:11:04,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:04,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 16:11:04,728 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 260 flow. Second operand 3 states and 434 transitions. [2022-11-21 16:11:04,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 122 transitions, 272 flow [2022-11-21 16:11:04,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 122 transitions, 265 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:11:04,730 INFO L231 Difference]: Finished difference. Result has 127 places, 0 transitions, 0 flow [2022-11-21 16:11:04,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=127, PETRI_TRANSITIONS=0} [2022-11-21 16:11:04,731 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -18 predicate places. [2022-11-21 16:11:04,731 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 0 transitions, 0 flow [2022-11-21 16:11:04,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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 16:11:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2022-11-21 16:11:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2022-11-21 16:11:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2022-11-21 16:11:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2022-11-21 16:11:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2022-11-21 16:11:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2022-11-21 16:11:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2022-11-21 16:11:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2022-11-21 16:11:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2022-11-21 16:11:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2022-11-21 16:11:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2022-11-21 16:11:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2022-11-21 16:11:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2022-11-21 16:11:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2022-11-21 16:11:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2022-11-21 16:11:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2022-11-21 16:11:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2022-11-21 16:11:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2022-11-21 16:11:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2022-11-21 16:11:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2022-11-21 16:11:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2022-11-21 16:11:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2022-11-21 16:11:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2022-11-21 16:11:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2022-11-21 16:11:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2022-11-21 16:11:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2022-11-21 16:11:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2022-11-21 16:11:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2022-11-21 16:11:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2022-11-21 16:11:04,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:11:04,741 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:04,747 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:11:04,747 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:11:04,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:11:04 BasicIcfg [2022-11-21 16:11:04,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:11:04,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:11:04,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:11:04,753 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:11:04,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:11:01" (3/4) ... [2022-11-21 16:11:04,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:11:04,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 16:11:04,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 16:11:04,766 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-21 16:11:04,766 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:11:04,766 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:11:04,766 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:11:04,807 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:11:04,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:11:04,808 INFO L158 Benchmark]: Toolchain (without parser) took 5301.52ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 128.6MB in the beginning and 181.3MB in the end (delta: -52.8MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,808 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 127.9MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:11:04,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.69ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 116.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.81ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 113.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,809 INFO L158 Benchmark]: Boogie Preprocessor took 58.60ms. Allocated memory is still 163.6MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,810 INFO L158 Benchmark]: RCFGBuilder took 1133.63ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 71.4MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,810 INFO L158 Benchmark]: TraceAbstraction took 3666.36ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 70.8MB in the beginning and 59.9MB in the end (delta: 10.9MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,810 INFO L158 Benchmark]: Witness Printer took 54.97ms. Allocated memory is still 216.0MB. Free memory was 59.9MB in the beginning and 181.3MB in the end (delta: -121.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-11-21 16:11:04,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 127.9MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.69ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 116.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.81ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 113.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.60ms. Allocated memory is still 163.6MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1133.63ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 71.4MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3666.36ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 70.8MB in the beginning and 59.9MB in the end (delta: 10.9MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Witness Printer took 54.97ms. Allocated memory is still 216.0MB. Free memory was 59.9MB in the beginning and 181.3MB in the end (delta: -121.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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, 192 locations, 29 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: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 72 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 700 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:11:04,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9494aa40-58f2-421a-9631-53b6a67b1c0f/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