./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R --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 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 --- 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-38b53e6 [2022-11-25 17:24:42,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:24:42,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:24:42,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:24:42,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:24:42,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:24:42,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:24:42,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:24:42,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:24:42,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:24:42,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:24:42,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:24:42,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:24:42,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:24:42,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:24:42,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:24:42,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:24:42,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:24:42,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:24:42,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:24:42,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:24:42,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:24:42,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:24:42,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:24:42,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:24:42,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:24:42,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:24:42,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:24:42,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:24:42,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:24:42,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:24:42,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:24:42,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:24:42,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:24:42,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:24:42,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:24:42,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:24:42,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:24:42,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:24:42,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:24:42,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:24:42,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:24:43,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:24:43,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:24:43,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:24:43,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:24:43,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:24:43,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:24:43,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:24:43,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:24:43,006 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:24:43,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:24:43,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:24:43,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:24:43,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:24:43,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:24:43,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:24:43,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:24:43,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:24:43,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:24:43,008 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:24:43,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:24:43,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:24:43,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:24:43,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:24:43,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:24:43,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:24:43,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:24:43,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:24:43,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:24:43,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:24:43,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:24:43,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:24:43,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:24:43,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:24:43,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:24:43,012 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:24:43,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:24:43,013 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 [2022-11-25 17:24:43,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:24:43,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:24:43,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:24:43,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:24:43,376 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:24:43,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2022-11-25 17:24:46,460 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:24:46,802 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:24:46,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2022-11-25 17:24:46,825 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/data/c1d1cde94/e231596a100c49f2b7704508bcea487f/FLAGe927354a2 [2022-11-25 17:24:46,843 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/data/c1d1cde94/e231596a100c49f2b7704508bcea487f [2022-11-25 17:24:46,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:24:46,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:24:46,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:24:46,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:24:46,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:24:46,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:24:46" (1/1) ... [2022-11-25 17:24:46,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ead3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:46, skipping insertion in model container [2022-11-25 17:24:46,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:24:46" (1/1) ... [2022-11-25 17:24:46,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:24:46,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:24:47,328 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_a12f3338-6748-4368-a224-03c3361da3bf/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2022-11-25 17:24:47,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:24:47,368 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:24:47,424 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_a12f3338-6748-4368-a224-03c3361da3bf/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2022-11-25 17:24:47,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:24:47,472 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:24:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47 WrapperNode [2022-11-25 17:24:47,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:24:47,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:24:47,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:24:47,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:24:47,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,551 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2022-11-25 17:24:47,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:24:47,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:24:47,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:24:47,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:24:47,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:24:47,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:24:47,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:24:47,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:24:47,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (1/1) ... [2022-11-25 17:24:47,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:24:47,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:24:47,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:24:47,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-25 17:24:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-25 17:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 17:24:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 17:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:24:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:24:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:24:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:24:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:24:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:24:47,702 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:24:47,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:24:47,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:24:48,129 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:24:48,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:24:48,138 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:24:48,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:24:48 BoogieIcfgContainer [2022-11-25 17:24:48,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:24:48,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:24:48,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:24:48,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:24:48,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:24:46" (1/3) ... [2022-11-25 17:24:48,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29aa82ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:24:48, skipping insertion in model container [2022-11-25 17:24:48,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:24:47" (2/3) ... [2022-11-25 17:24:48,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29aa82ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:24:48, skipping insertion in model container [2022-11-25 17:24:48,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:24:48" (3/3) ... [2022-11-25 17:24:48,155 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2022-11-25 17:24:48,168 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:24:48,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:24:48,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 17:24:48,180 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:24:48,247 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:24:48,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 138 transitions, 286 flow [2022-11-25 17:24:48,415 INFO L130 PetriNetUnfolder]: 7/154 cut-off events. [2022-11-25 17:24:48,415 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:48,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 154 events. 7/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-11-25 17:24:48,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 138 transitions, 286 flow [2022-11-25 17:24:48,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 137 transitions, 282 flow [2022-11-25 17:24:48,446 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:24:48,468 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 137 transitions, 282 flow [2022-11-25 17:24:48,471 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 137 transitions, 282 flow [2022-11-25 17:24:48,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 137 transitions, 282 flow [2022-11-25 17:24:48,510 INFO L130 PetriNetUnfolder]: 7/154 cut-off events. [2022-11-25 17:24:48,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:48,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 154 events. 7/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-11-25 17:24:48,515 INFO L119 LiptonReduction]: Number of co-enabled transitions 3398 [2022-11-25 17:24:54,349 INFO L134 LiptonReduction]: Checked pairs total: 7130 [2022-11-25 17:24:54,350 INFO L136 LiptonReduction]: Total number of compositions: 155 [2022-11-25 17:24:54,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:24:54,394 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;@3c5c84cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:24:54,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-25 17:24:54,398 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:24:54,399 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:54,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:54,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:24:54,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:24:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:54,409 INFO L85 PathProgramCache]: Analyzing trace with hash 537, now seen corresponding path program 1 times [2022-11-25 17:24:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:54,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218407658] [2022-11-25 17:24:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:54,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:54,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:54,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:54,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218407658] [2022-11-25 17:24:54,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218407658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:54,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:54,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:24:54,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228995223] [2022-11-25 17:24:54,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:54,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:24:54,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:24:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:24:54,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-11-25 17:24:54,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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) [2022-11-25 17:24:54,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:54,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-11-25 17:24:54,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:54,729 INFO L130 PetriNetUnfolder]: 133/275 cut-off events. [2022-11-25 17:24:54,729 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:24:54,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 275 events. 133/275 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1154 event pairs, 117 based on Foata normal form. 24/258 useless extension candidates. Maximal degree in co-relation 513. Up to 231 conditions per place. [2022-11-25 17:24:54,738 INFO L137 encePairwiseOnDemand]: 283/293 looper letters, 15 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2022-11-25 17:24:54,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 78 flow [2022-11-25 17:24:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:24:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:24:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 287 transitions. [2022-11-25 17:24:54,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48976109215017066 [2022-11-25 17:24:54,753 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 287 transitions. [2022-11-25 17:24:54,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 287 transitions. [2022-11-25 17:24:54,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:54,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 287 transitions. [2022-11-25 17:24:54,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 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) [2022-11-25 17:24:54,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2022-11-25 17:24:54,768 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2022-11-25 17:24:54,769 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 68 flow. Second operand 2 states and 287 transitions. [2022-11-25 17:24:54,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 78 flow [2022-11-25 17:24:54,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:24:54,773 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 47 flow [2022-11-25 17:24:54,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=47, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2022-11-25 17:24:54,779 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2022-11-25 17:24:54,779 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 47 flow [2022-11-25 17:24:54,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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) [2022-11-25 17:24:54,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:54,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:24:54,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:24:54,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:24:54,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:54,781 INFO L85 PathProgramCache]: Analyzing trace with hash 16439234, now seen corresponding path program 1 times [2022-11-25 17:24:54,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:54,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253276971] [2022-11-25 17:24:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:54,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:54,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:54,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253276971] [2022-11-25 17:24:54,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253276971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:54,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:54,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:24:54,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117428886] [2022-11-25 17:24:54,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:54,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:24:54,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:54,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:24:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:24:54,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 293 [2022-11-25 17:24:54,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-11-25 17:24:54,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:54,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 293 [2022-11-25 17:24:54,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:55,100 INFO L130 PetriNetUnfolder]: 192/367 cut-off events. [2022-11-25 17:24:55,100 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:24:55,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 367 events. 192/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1622 event pairs, 103 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 723. Up to 250 conditions per place. [2022-11-25 17:24:55,102 INFO L137 encePairwiseOnDemand]: 288/293 looper letters, 23 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2022-11-25 17:24:55,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 30 transitions, 124 flow [2022-11-25 17:24:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:24:55,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:24:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-11-25 17:24:55,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45164960182025027 [2022-11-25 17:24:55,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-11-25 17:24:55,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-11-25 17:24:55,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:55,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-11-25 17:24:55,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-11-25 17:24:55,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-11-25 17:24:55,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-11-25 17:24:55,112 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 47 flow. Second operand 3 states and 397 transitions. [2022-11-25 17:24:55,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 30 transitions, 124 flow [2022-11-25 17:24:55,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:55,113 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 77 flow [2022-11-25 17:24:55,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2022-11-25 17:24:55,114 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2022-11-25 17:24:55,114 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 77 flow [2022-11-25 17:24:55,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-11-25 17:24:55,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:55,115 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:55,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:24:55,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:24:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash 351291943, now seen corresponding path program 1 times [2022-11-25 17:24:55,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:55,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138632706] [2022-11-25 17:24:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:55,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:24:55,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:24:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:24:55,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:24:55,195 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:24:55,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-25 17:24:55,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-25 17:24:55,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-25 17:24:55,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-25 17:24:55,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-25 17:24:55,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-25 17:24:55,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-25 17:24:55,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-25 17:24:55,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-25 17:24:55,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-25 17:24:55,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-25 17:24:55,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 17 remaining) [2022-11-25 17:24:55,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-25 17:24:55,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-25 17:24:55,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-25 17:24:55,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-25 17:24:55,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-25 17:24:55,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:24:55,205 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:24:55,208 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:24:55,208 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:24:55,256 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:24:55,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 188 transitions, 400 flow [2022-11-25 17:24:55,301 INFO L130 PetriNetUnfolder]: 10/208 cut-off events. [2022-11-25 17:24:55,301 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:24:55,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 208 events. 10/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 217. Up to 6 conditions per place. [2022-11-25 17:24:55,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 188 transitions, 400 flow [2022-11-25 17:24:55,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 169 transitions, 353 flow [2022-11-25 17:24:55,307 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:24:55,307 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 169 transitions, 353 flow [2022-11-25 17:24:55,308 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 169 transitions, 353 flow [2022-11-25 17:24:55,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 169 transitions, 353 flow [2022-11-25 17:24:55,359 INFO L130 PetriNetUnfolder]: 10/208 cut-off events. [2022-11-25 17:24:55,359 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:24:55,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 208 events. 10/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 157. Up to 6 conditions per place. [2022-11-25 17:24:55,367 INFO L119 LiptonReduction]: Number of co-enabled transitions 7896 [2022-11-25 17:25:02,119 INFO L134 LiptonReduction]: Checked pairs total: 21517 [2022-11-25 17:25:02,120 INFO L136 LiptonReduction]: Total number of compositions: 178 [2022-11-25 17:25:02,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:25:02,123 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;@3c5c84cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:25:02,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-25 17:25:02,125 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:25:02,125 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:25:02,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:02,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:25:02,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 17:25:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 952, now seen corresponding path program 1 times [2022-11-25 17:25:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:02,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979563963] [2022-11-25 17:25:02,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:02,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:02,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:02,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979563963] [2022-11-25 17:25:02,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979563963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:02,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:02,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:25:02,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280895712] [2022-11-25 17:25:02,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:02,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:25:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:02,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:25:02,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:25:02,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 366 [2022-11-25 17:25:02,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 111 flow. Second operand has 2 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 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) [2022-11-25 17:25:02,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:02,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 366 [2022-11-25 17:25:02,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:02,563 INFO L130 PetriNetUnfolder]: 1889/3405 cut-off events. [2022-11-25 17:25:02,563 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-11-25 17:25:02,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6226 conditions, 3405 events. 1889/3405 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 22409 event pairs, 1665 based on Foata normal form. 424/3260 useless extension candidates. Maximal degree in co-relation 6215. Up to 2691 conditions per place. [2022-11-25 17:25:02,585 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 24 selfloop transitions, 0 changer transitions 0/37 dead transitions. [2022-11-25 17:25:02,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 137 flow [2022-11-25 17:25:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:25:02,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:25:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 387 transitions. [2022-11-25 17:25:02,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5286885245901639 [2022-11-25 17:25:02,593 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 387 transitions. [2022-11-25 17:25:02,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 387 transitions. [2022-11-25 17:25:02,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:02,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 387 transitions. [2022-11-25 17:25:02,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 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) [2022-11-25 17:25:02,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2022-11-25 17:25:02,599 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2022-11-25 17:25:02,599 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 111 flow. Second operand 2 states and 387 transitions. [2022-11-25 17:25:02,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 137 flow [2022-11-25 17:25:02,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:02,603 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 86 flow [2022-11-25 17:25:02,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2022-11-25 17:25:02,605 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -8 predicate places. [2022-11-25 17:25:02,606 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 86 flow [2022-11-25 17:25:02,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 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) [2022-11-25 17:25:02,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:02,607 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:25:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:25:02,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 17:25:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 29250499, now seen corresponding path program 1 times [2022-11-25 17:25:02,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:02,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525942004] [2022-11-25 17:25:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:02,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:02,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:02,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525942004] [2022-11-25 17:25:02,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525942004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:02,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:02,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:25:02,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546369636] [2022-11-25 17:25:02,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:02,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:25:02,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:25:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:25:02,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 366 [2022-11-25 17:25:02,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2022-11-25 17:25:02,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:02,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 366 [2022-11-25 17:25:02,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:03,669 INFO L130 PetriNetUnfolder]: 6015/8929 cut-off events. [2022-11-25 17:25:03,670 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-11-25 17:25:03,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17781 conditions, 8929 events. 6015/8929 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 57604 event pairs, 2290 based on Foata normal form. 0/7478 useless extension candidates. Maximal degree in co-relation 17776. Up to 5493 conditions per place. [2022-11-25 17:25:03,726 INFO L137 encePairwiseOnDemand]: 355/366 looper letters, 51 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2022-11-25 17:25:03,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 266 flow [2022-11-25 17:25:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:25:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:25:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-11-25 17:25:03,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49635701275045535 [2022-11-25 17:25:03,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2022-11-25 17:25:03,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2022-11-25 17:25:03,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:03,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2022-11-25 17:25:03,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2022-11-25 17:25:03,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 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) [2022-11-25 17:25:03,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 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) [2022-11-25 17:25:03,734 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 86 flow. Second operand 3 states and 545 transitions. [2022-11-25 17:25:03,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 266 flow [2022-11-25 17:25:03,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 64 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:25:03,737 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 156 flow [2022-11-25 17:25:03,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2022-11-25 17:25:03,738 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2022-11-25 17:25:03,738 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 156 flow [2022-11-25 17:25:03,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2022-11-25 17:25:03,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:03,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:03,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:25:03,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 17:25:03,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2109196147, now seen corresponding path program 1 times [2022-11-25 17:25:03,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:03,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53431510] [2022-11-25 17:25:03,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:25:03,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:03,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53431510] [2022-11-25 17:25:03,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53431510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:03,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:03,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:25:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070144678] [2022-11-25 17:25:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:03,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:25:03,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:03,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:25:03,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:25:03,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 366 [2022-11-25 17:25:03,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2022-11-25 17:25:03,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:25:03,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 366 [2022-11-25 17:25:03,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:04,775 INFO L130 PetriNetUnfolder]: 5891/8970 cut-off events. [2022-11-25 17:25:04,775 INFO L131 PetriNetUnfolder]: For 2932/3036 co-relation queries the response was YES. [2022-11-25 17:25:04,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21204 conditions, 8970 events. 5891/8970 cut-off events. For 2932/3036 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 58341 event pairs, 3806 based on Foata normal form. 0/7568 useless extension candidates. Maximal degree in co-relation 21197. Up to 7624 conditions per place. [2022-11-25 17:25:04,829 INFO L137 encePairwiseOnDemand]: 360/366 looper letters, 45 selfloop transitions, 9 changer transitions 0/65 dead transitions. [2022-11-25 17:25:04,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 65 transitions, 333 flow [2022-11-25 17:25:04,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:25:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:25:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-25 17:25:04,831 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4918032786885246 [2022-11-25 17:25:04,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-25 17:25:04,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-25 17:25:04,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:04,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-25 17:25:04,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2022-11-25 17:25:04,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 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) [2022-11-25 17:25:04,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 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) [2022-11-25 17:25:04,836 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 156 flow. Second operand 3 states and 540 transitions. [2022-11-25 17:25:04,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 65 transitions, 333 flow [2022-11-25 17:25:04,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:25:04,858 INFO L231 Difference]: Finished difference. Result has 48 places, 52 transitions, 209 flow [2022-11-25 17:25:04,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=48, PETRI_TRANSITIONS=52} [2022-11-25 17:25:04,859 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2022-11-25 17:25:04,866 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 52 transitions, 209 flow [2022-11-25 17:25:04,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2022-11-25 17:25:04,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:04,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:04,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:25:04,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 17:25:04,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 329925215, now seen corresponding path program 1 times [2022-11-25 17:25:04,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:04,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842942790] [2022-11-25 17:25:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:25:04,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:25:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:25:04,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:25:04,918 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-25 17:25:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 22 remaining) [2022-11-25 17:25:04,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-25 17:25:04,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-25 17:25:04,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-25 17:25:04,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-25 17:25:04,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-25 17:25:04,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:25:04,922 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 17:25:04,927 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-25 17:25:04,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:25:05,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:25:05 BasicIcfg [2022-11-25 17:25:05,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:25:05,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:25:05,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:25:05,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:25:05,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:24:48" (3/4) ... [2022-11-25 17:25:05,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:25:05,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:25:05,046 INFO L158 Benchmark]: Toolchain (without parser) took 18195.77ms. Allocated memory was 151.0MB in the beginning and 354.4MB in the end (delta: 203.4MB). Free memory was 119.9MB in the beginning and 230.0MB in the end (delta: -110.1MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,046 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 121.6MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:25:05,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.94ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 99.5MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.87ms. Allocated memory is still 151.0MB. Free memory was 99.5MB in the beginning and 97.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,047 INFO L158 Benchmark]: Boogie Preprocessor took 41.37ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,047 INFO L158 Benchmark]: RCFGBuilder took 542.48ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 79.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,048 INFO L158 Benchmark]: TraceAbstraction took 16896.67ms. Allocated memory was 151.0MB in the beginning and 354.4MB in the end (delta: 203.4MB). Free memory was 79.2MB in the beginning and 230.0MB in the end (delta: -150.8MB). Peak memory consumption was 199.4MB. Max. memory is 16.1GB. [2022-11-25 17:25:05,048 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 354.4MB. Free memory is still 230.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:25:05,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 121.6MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.94ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 99.5MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.87ms. Allocated memory is still 151.0MB. Free memory was 99.5MB in the beginning and 97.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.37ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.48ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 79.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16896.67ms. Allocated memory was 151.0MB in the beginning and 354.4MB in the end (delta: 203.4MB). Free memory was 79.2MB in the beginning and 230.0MB in the end (delta: -150.8MB). Peak memory consumption was 199.4MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 354.4MB. Free memory is still 230.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 137 PlacesBefore, 33 PlacesAfterwards, 137 TransitionsBefore, 30 TransitionsAfterwards, 3398 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 155 TotalNumberOfCompositions, 7130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4444, independent: 4251, independent conditional: 0, independent unconditional: 4251, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2720, independent: 2674, independent conditional: 0, independent unconditional: 2674, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2720, independent: 2582, independent conditional: 0, independent unconditional: 2582, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 138, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 216, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4444, independent: 1577, independent conditional: 0, independent unconditional: 1577, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 2720, unknown conditional: 0, unknown unconditional: 2720] , Statistics on independence cache: Total cache size (in pairs): 137, Positive cache size: 121, Positive conditional cache size: 0, Positive unconditional cache size: 121, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 169 PlacesBefore, 51 PlacesAfterwards, 169 TransitionsBefore, 48 TransitionsAfterwards, 7896 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 22 ConcurrentYvCompositions, 3 ChoiceCompositions, 178 TotalNumberOfCompositions, 21517 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10821, independent: 10445, independent conditional: 0, independent unconditional: 10445, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6053, independent: 5961, independent conditional: 0, independent unconditional: 5961, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6053, independent: 5797, independent conditional: 0, independent unconditional: 5797, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 256, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 280, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10821, independent: 4484, independent conditional: 0, independent unconditional: 4484, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 6053, unknown conditional: 0, unknown unconditional: 6053] , Statistics on independence cache: Total cache size (in pairs): 470, Positive cache size: 426, Positive conditional cache size: 0, Positive unconditional cache size: 426, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 694]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; [L691] 0 volatile int n; [L692] 0 pthread_mutex_t mut = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L708] 0 pthread_t t1, t2; [L709] 0 x = 0 [L710] 0 n = __VERIFIER_nondet_uint() [L711] EXPR 0 n >= (10/2) [L711] EXPR 0 n >= (10/2) && n <= 10 [L711] EXPR 0 n <= 10 [L711] EXPR 0 n >= (10/2) && n <= 10 [L711] CALL 0 assume_abort_if_not(n >= (10/2) && n <= 10) [L687] COND FALSE 0 !(!cond) [L711] RET 0 assume_abort_if_not(n >= (10/2) && n <= 10) [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, mut={3:0}, n=5, pthread_create(&t1, 0, thr1, 0)=-2, t1={7:0}, t2={6:0}, x=0] [L694] 1 x < n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=0] [L713] 0 int i = 0; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, t1={7:0}, t2={6:0}, x=0] [L713] 0 i < n [L713] COND TRUE 0 i < n [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, pthread_create(&t2, 0, thr2, 0)=-1, t1={7:0}, t2={6:0}, x=0] [L697] 2 int t; [L698] 2 int k = __VERIFIER_nondet_uint(); [L699] CALL 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L687] COND FALSE 2 !(!cond) [L699] RET 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L701] 2 t = x [L702] 2 k == n [L702] COND TRUE 2 k == n [L703] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, k=5, mut={3:0}, n=5, t=0, x=1, x = t + 1=52] [L694] 1 x < n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [703] and C: x < n [694] - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 181 locations, 17 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: 6.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 3 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 228 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 23 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:25:05,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12f3338-6748-4368-a224-03c3361da3bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE