./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa --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 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:42:39,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:42:39,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:42:39,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:42:39,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:42:39,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:42:39,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:42:39,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:42:39,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:42:39,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:42:39,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:42:39,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:42:39,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:42:39,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:42:39,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:42:39,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:42:39,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:42:39,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:42:39,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:42:39,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:42:39,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:42:39,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:42:39,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:42:39,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:42:39,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:42:39,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:42:39,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:42:39,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:42:39,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:42:39,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:42:39,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:42:39,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:42:39,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:42:39,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:42:39,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:42:39,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:42:39,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:42:39,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:42:39,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:42:39,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:42:39,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:42:39,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:42:39,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:42:39,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:42:39,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:42:39,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:42:39,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:42:39,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:42:39,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:42:39,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:42:39,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:42:39,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:42:39,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:42:39,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:42:39,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:42:39,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:42:39,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:42:39,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 [2021-12-06 18:42:40,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:42:40,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:42:40,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:42:40,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:42:40,196 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:42:40,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2021-12-06 18:42:40,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/data/51f591f4f/fb60304b5fdb4d6eb7011371d5c68c42/FLAG5eb91dc2b [2021-12-06 18:42:40,689 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:42:40,689 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2021-12-06 18:42:40,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/data/51f591f4f/fb60304b5fdb4d6eb7011371d5c68c42/FLAG5eb91dc2b [2021-12-06 18:42:40,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/data/51f591f4f/fb60304b5fdb4d6eb7011371d5c68c42 [2021-12-06 18:42:40,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:42:40,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:42:40,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:42:40,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:42:40,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:42:40,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:42:40" (1/1) ... [2021-12-06 18:42:40,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b275f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:40, skipping insertion in model container [2021-12-06 18:42:40,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:42:40" (1/1) ... [2021-12-06 18:42:40,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:42:40,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:42:41,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:42:41,112 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:42:41,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:42:41,205 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:42:41,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41 WrapperNode [2021-12-06 18:42:41,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:42:41,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:42:41,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:42:41,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:42:41,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,247 INFO L137 Inliner]: procedures = 365, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2021-12-06 18:42:41,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:42:41,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:42:41,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:42:41,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:42:41,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:42:41,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:42:41,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:42:41,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:42:41,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (1/1) ... [2021-12-06 18:42:41,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:42:41,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:42:41,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:42:41,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:42:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:42:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:42:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:42:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:42:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:42:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:42:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:42:41,344 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:42:41,444 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:42:41,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:42:41,602 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:42:41,610 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:42:41,610 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:42:41,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:42:41 BoogieIcfgContainer [2021-12-06 18:42:41,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:42:41,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:42:41,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:42:41,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:42:41,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:42:40" (1/3) ... [2021-12-06 18:42:41,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efd3b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:42:41, skipping insertion in model container [2021-12-06 18:42:41,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:41" (2/3) ... [2021-12-06 18:42:41,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efd3b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:42:41, skipping insertion in model container [2021-12-06 18:42:41,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:42:41" (3/3) ... [2021-12-06 18:42:41,620 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2021-12-06 18:42:41,625 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:42:41,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:42:41,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-12-06 18:42:41,626 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:42:41,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,661 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,661 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,662 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,662 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,675 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,675 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,676 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,676 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,676 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:42:41,680 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 18:42:41,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:42:41,728 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:42:41,728 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-12-06 18:42:41,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 114 transitions, 233 flow [2021-12-06 18:42:41,786 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-12-06 18:42:41,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:42:41,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-12-06 18:42:41,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 114 transitions, 233 flow [2021-12-06 18:42:41,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 113 transitions, 229 flow [2021-12-06 18:42:41,802 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-12-06 18:42:41,803 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:42:41,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:41,803 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:41,804 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:41,809 INFO L85 PathProgramCache]: Analyzing trace with hash -796788612, now seen corresponding path program 1 times [2021-12-06 18:42:41,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:41,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277952700] [2021-12-06 18:42:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:41,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:42,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277952700] [2021-12-06 18:42:42,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277952700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:42,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:42,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:42:42,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7963673] [2021-12-06 18:42:42,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:42,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:42:42,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:42,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:42:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:42:42,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 114 [2021-12-06 18:42:42,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-12-06 18:42:42,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:42,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 114 [2021-12-06 18:42:42,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:42,105 INFO L129 PetriNetUnfolder]: 9/235 cut-off events. [2021-12-06 18:42:42,105 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:42:42,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 235 events. 9/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 769 event pairs, 9 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 212. Up to 29 conditions per place. [2021-12-06 18:42:42,109 INFO L132 encePairwiseOnDemand]: 111/114 looper letters, 10 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2021-12-06 18:42:42,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 112 transitions, 251 flow [2021-12-06 18:42:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:42:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:42:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2021-12-06 18:42:42,119 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2021-12-06 18:42:42,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:42,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:42,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,135 INFO L186 Difference]: Start difference. First operand has 117 places, 113 transitions, 229 flow. Second operand 3 states and 316 transitions. [2021-12-06 18:42:42,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 112 transitions, 251 flow [2021-12-06 18:42:42,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 112 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:42:42,144 INFO L242 Difference]: Finished difference. Result has 117 places, 112 transitions, 230 flow [2021-12-06 18:42:42,146 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2021-12-06 18:42:42,150 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 0 predicate places. [2021-12-06 18:42:42,150 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 230 flow [2021-12-06 18:42:42,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-12-06 18:42:42,151 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:42,151 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:42,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:42:42,152 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:42,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1918488513, now seen corresponding path program 1 times [2021-12-06 18:42:42,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:42,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536624286] [2021-12-06 18:42:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:42,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:42,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:42,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536624286] [2021-12-06 18:42:42,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536624286] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:42,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:42,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:42:42,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105553020] [2021-12-06 18:42:42,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:42,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:42:42,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:42,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:42:42,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:42:42,204 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 114 [2021-12-06 18:42:42,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-12-06 18:42:42,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:42,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 114 [2021-12-06 18:42:42,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:42,242 INFO L129 PetriNetUnfolder]: 9/183 cut-off events. [2021-12-06 18:42:42,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:42:42,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 183 events. 9/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 415 event pairs, 9 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 179. Up to 29 conditions per place. [2021-12-06 18:42:42,243 INFO L132 encePairwiseOnDemand]: 111/114 looper letters, 10 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2021-12-06 18:42:42,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 252 flow [2021-12-06 18:42:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:42:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:42:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2021-12-06 18:42:42,246 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2021-12-06 18:42:42,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:42,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2021-12-06 18:42:42,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:42,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,250 INFO L186 Difference]: Start difference. First operand has 117 places, 112 transitions, 230 flow. Second operand 3 states and 316 transitions. [2021-12-06 18:42:42,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 252 flow [2021-12-06 18:42:42,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:42:42,253 INFO L242 Difference]: Finished difference. Result has 116 places, 111 transitions, 228 flow [2021-12-06 18:42:42,254 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2021-12-06 18:42:42,254 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, -1 predicate places. [2021-12-06 18:42:42,255 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 228 flow [2021-12-06 18:42:42,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-12-06 18:42:42,255 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:42,255 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:42,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:42:42,256 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2011316591, now seen corresponding path program 1 times [2021-12-06 18:42:42,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:42,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133146724] [2021-12-06 18:42:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:42,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:42,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:42,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133146724] [2021-12-06 18:42:42,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133146724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:42,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:42,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:42:42,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525865588] [2021-12-06 18:42:42,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:42,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:42:42,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:42:42,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:42:42,303 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 114 [2021-12-06 18:42:42,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:42,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:42,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 114 [2021-12-06 18:42:42,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:42,336 INFO L129 PetriNetUnfolder]: 4/195 cut-off events. [2021-12-06 18:42:42,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:42:42,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 195 events. 4/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 533 event pairs, 2 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 168. Up to 12 conditions per place. [2021-12-06 18:42:42,338 INFO L132 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2021-12-06 18:42:42,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 246 flow [2021-12-06 18:42:42,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:42:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:42:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2021-12-06 18:42:42,341 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-12-06 18:42:42,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2021-12-06 18:42:42,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2021-12-06 18:42:42,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:42,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2021-12-06 18:42:42,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2021-12-06 18:42:42,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:42,346 INFO L186 Difference]: Start difference. First operand has 116 places, 111 transitions, 228 flow. Second operand 3 states and 323 transitions. [2021-12-06 18:42:42,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 246 flow [2021-12-06 18:42:42,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:42:42,350 INFO L242 Difference]: Finished difference. Result has 115 places, 111 transitions, 234 flow [2021-12-06 18:42:42,351 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2021-12-06 18:42:42,352 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2021-12-06 18:42:42,352 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 234 flow [2021-12-06 18:42:42,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:42,352 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:42,353 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:42,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:42:42,353 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:42,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash -576174563, now seen corresponding path program 1 times [2021-12-06 18:42:42,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:42,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581313592] [2021-12-06 18:42:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:42,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:42,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:42,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581313592] [2021-12-06 18:42:42,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581313592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:42,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:42,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:42:42,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398100670] [2021-12-06 18:42:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:42,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:42:42,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:42:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:42:42,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2021-12-06 18:42:42,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 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) [2021-12-06 18:42:42,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:42,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2021-12-06 18:42:42,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:42,740 INFO L129 PetriNetUnfolder]: 290/964 cut-off events. [2021-12-06 18:42:42,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:42:42,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 964 events. 290/964 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5386 event pairs, 130 based on Foata normal form. 0/843 useless extension candidates. Maximal degree in co-relation 1549. Up to 437 conditions per place. [2021-12-06 18:42:42,746 INFO L132 encePairwiseOnDemand]: 98/114 looper letters, 62 selfloop transitions, 41 changer transitions 0/183 dead transitions. [2021-12-06 18:42:42,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 183 transitions, 584 flow [2021-12-06 18:42:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:42:42,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:42:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 602 transitions. [2021-12-06 18:42:42,749 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8801169590643275 [2021-12-06 18:42:42,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 602 transitions. [2021-12-06 18:42:42,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 602 transitions. [2021-12-06 18:42:42,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:42,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 602 transitions. [2021-12-06 18:42:42,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 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) [2021-12-06 18:42:42,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:42,754 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:42,754 INFO L186 Difference]: Start difference. First operand has 115 places, 111 transitions, 234 flow. Second operand 6 states and 602 transitions. [2021-12-06 18:42:42,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 183 transitions, 584 flow [2021-12-06 18:42:42,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 183 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:42:42,758 INFO L242 Difference]: Finished difference. Result has 124 places, 153 transitions, 492 flow [2021-12-06 18:42:42,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=124, PETRI_TRANSITIONS=153} [2021-12-06 18:42:42,759 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 7 predicate places. [2021-12-06 18:42:42,759 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 153 transitions, 492 flow [2021-12-06 18:42:42,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 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) [2021-12-06 18:42:42,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:42,760 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:42,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:42:42,760 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:42,761 INFO L85 PathProgramCache]: Analyzing trace with hash -906441389, now seen corresponding path program 1 times [2021-12-06 18:42:42,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:42,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656827265] [2021-12-06 18:42:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:42,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:42,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:42,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656827265] [2021-12-06 18:42:42,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656827265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:42,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:42,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:42:42,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556321334] [2021-12-06 18:42:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:42,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:42:42,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:42:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:42:42,846 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2021-12-06 18:42:42,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 153 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 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) [2021-12-06 18:42:42,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:42,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2021-12-06 18:42:42,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:43,170 INFO L129 PetriNetUnfolder]: 446/1503 cut-off events. [2021-12-06 18:42:43,170 INFO L130 PetriNetUnfolder]: For 384/416 co-relation queries the response was YES. [2021-12-06 18:42:43,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 1503 events. 446/1503 cut-off events. For 384/416 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10065 event pairs, 34 based on Foata normal form. 25/1405 useless extension candidates. Maximal degree in co-relation 3292. Up to 453 conditions per place. [2021-12-06 18:42:43,180 INFO L132 encePairwiseOnDemand]: 99/114 looper letters, 129 selfloop transitions, 48 changer transitions 0/263 dead transitions. [2021-12-06 18:42:43,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 263 transitions, 1241 flow [2021-12-06 18:42:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:42:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:42:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2021-12-06 18:42:43,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2021-12-06 18:42:43,183 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 632 transitions. [2021-12-06 18:42:43,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 632 transitions. [2021-12-06 18:42:43,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:43,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 632 transitions. [2021-12-06 18:42:43,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 states have internal predecessors, (632), 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) [2021-12-06 18:42:43,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:43,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:43,187 INFO L186 Difference]: Start difference. First operand has 124 places, 153 transitions, 492 flow. Second operand 6 states and 632 transitions. [2021-12-06 18:42:43,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 263 transitions, 1241 flow [2021-12-06 18:42:43,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 263 transitions, 1241 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:42:43,195 INFO L242 Difference]: Finished difference. Result has 134 places, 199 transitions, 898 flow [2021-12-06 18:42:43,196 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=134, PETRI_TRANSITIONS=199} [2021-12-06 18:42:43,196 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 17 predicate places. [2021-12-06 18:42:43,196 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 199 transitions, 898 flow [2021-12-06 18:42:43,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 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) [2021-12-06 18:42:43,197 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:43,197 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:43,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:42:43,197 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:43,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2126821387, now seen corresponding path program 1 times [2021-12-06 18:42:43,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:43,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217887058] [2021-12-06 18:42:43,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:43,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:43,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:43,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217887058] [2021-12-06 18:42:43,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217887058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:43,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:43,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:42:43,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892796879] [2021-12-06 18:42:43,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:43,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:42:43,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:43,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:42:43,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:42:43,232 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 114 [2021-12-06 18:42:43,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 199 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:43,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:43,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 114 [2021-12-06 18:42:43,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:43,329 INFO L129 PetriNetUnfolder]: 209/1027 cut-off events. [2021-12-06 18:42:43,330 INFO L130 PetriNetUnfolder]: For 612/690 co-relation queries the response was YES. [2021-12-06 18:42:43,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 1027 events. 209/1027 cut-off events. For 612/690 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6946 event pairs, 16 based on Foata normal form. 14/1009 useless extension candidates. Maximal degree in co-relation 2182. Up to 206 conditions per place. [2021-12-06 18:42:43,337 INFO L132 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2021-12-06 18:42:43,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 199 transitions, 916 flow [2021-12-06 18:42:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:42:43,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:42:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2021-12-06 18:42:43,339 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-12-06 18:42:43,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2021-12-06 18:42:43,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2021-12-06 18:42:43,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:43,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2021-12-06 18:42:43,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2021-12-06 18:42:43,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:43,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:43,341 INFO L186 Difference]: Start difference. First operand has 134 places, 199 transitions, 898 flow. Second operand 3 states and 323 transitions. [2021-12-06 18:42:43,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 199 transitions, 916 flow [2021-12-06 18:42:43,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 199 transitions, 908 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-12-06 18:42:43,350 INFO L242 Difference]: Finished difference. Result has 135 places, 199 transitions, 900 flow [2021-12-06 18:42:43,350 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=135, PETRI_TRANSITIONS=199} [2021-12-06 18:42:43,351 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 18 predicate places. [2021-12-06 18:42:43,351 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 199 transitions, 900 flow [2021-12-06 18:42:43,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:43,351 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:43,351 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:43,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:42:43,352 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1656224381, now seen corresponding path program 1 times [2021-12-06 18:42:43,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:43,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714452878] [2021-12-06 18:42:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:43,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:43,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:43,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714452878] [2021-12-06 18:42:43,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714452878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:43,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:43,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:42:43,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119721626] [2021-12-06 18:42:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:43,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:42:43,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:42:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:42:43,388 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 114 [2021-12-06 18:42:43,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 199 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2021-12-06 18:42:43,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:43,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 114 [2021-12-06 18:42:43,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:43,425 INFO L129 PetriNetUnfolder]: 40/319 cut-off events. [2021-12-06 18:42:43,425 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-12-06 18:42:43,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 319 events. 40/319 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1139 event pairs, 4 based on Foata normal form. 2/308 useless extension candidates. Maximal degree in co-relation 526. Up to 68 conditions per place. [2021-12-06 18:42:43,427 INFO L132 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2021-12-06 18:42:43,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 456 flow [2021-12-06 18:42:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:42:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:42:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2021-12-06 18:42:43,428 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9415204678362573 [2021-12-06 18:42:43,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2021-12-06 18:42:43,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2021-12-06 18:42:43,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:43,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2021-12-06 18:42:43,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2021-12-06 18:42:43,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:43,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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) [2021-12-06 18:42:43,431 INFO L186 Difference]: Start difference. First operand has 135 places, 199 transitions, 900 flow. Second operand 3 states and 322 transitions. [2021-12-06 18:42:43,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 456 flow [2021-12-06 18:42:43,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 406 flow, removed 17 selfloop flow, removed 8 redundant places. [2021-12-06 18:42:43,434 INFO L242 Difference]: Finished difference. Result has 128 places, 132 transitions, 392 flow [2021-12-06 18:42:43,434 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=128, PETRI_TRANSITIONS=132} [2021-12-06 18:42:43,435 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 11 predicate places. [2021-12-06 18:42:43,435 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 392 flow [2021-12-06 18:42:43,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2021-12-06 18:42:43,435 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:43,436 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:42:43,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2062702493, now seen corresponding path program 1 times [2021-12-06 18:42:43,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654600836] [2021-12-06 18:42:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:43,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:43,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654600836] [2021-12-06 18:42:43,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654600836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:43,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:43,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:42:43,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67057699] [2021-12-06 18:42:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:43,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:42:43,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:43,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:42:43,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:42:43,515 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2021-12-06 18:42:43,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2021-12-06 18:42:43,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:43,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2021-12-06 18:42:43,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:43,713 INFO L129 PetriNetUnfolder]: 191/741 cut-off events. [2021-12-06 18:42:43,713 INFO L130 PetriNetUnfolder]: For 126/134 co-relation queries the response was YES. [2021-12-06 18:42:43,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1498 conditions, 741 events. 191/741 cut-off events. For 126/134 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3900 event pairs, 53 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1436. Up to 303 conditions per place. [2021-12-06 18:42:43,717 INFO L132 encePairwiseOnDemand]: 102/114 looper letters, 70 selfloop transitions, 25 changer transitions 4/180 dead transitions. [2021-12-06 18:42:43,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 180 transitions, 718 flow [2021-12-06 18:42:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:42:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:42:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2021-12-06 18:42:43,719 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8435672514619883 [2021-12-06 18:42:43,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 577 transitions. [2021-12-06 18:42:43,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 577 transitions. [2021-12-06 18:42:43,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:43,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 577 transitions. [2021-12-06 18:42:43,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2021-12-06 18:42:43,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:43,723 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:43,723 INFO L186 Difference]: Start difference. First operand has 128 places, 132 transitions, 392 flow. Second operand 6 states and 577 transitions. [2021-12-06 18:42:43,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 180 transitions, 718 flow [2021-12-06 18:42:43,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 180 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:42:43,727 INFO L242 Difference]: Finished difference. Result has 136 places, 157 transitions, 576 flow [2021-12-06 18:42:43,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=136, PETRI_TRANSITIONS=157} [2021-12-06 18:42:43,728 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2021-12-06 18:42:43,728 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 157 transitions, 576 flow [2021-12-06 18:42:43,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2021-12-06 18:42:43,729 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:43,729 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:43,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:42:43,730 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash 283971730, now seen corresponding path program 1 times [2021-12-06 18:42:43,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:43,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452338922] [2021-12-06 18:42:43,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:43,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:43,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:43,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452338922] [2021-12-06 18:42:43,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452338922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:43,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:43,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:42:43,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530705076] [2021-12-06 18:42:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:43,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:42:43,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:42:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:42:43,824 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2021-12-06 18:42:43,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 157 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 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) [2021-12-06 18:42:43,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:43,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2021-12-06 18:42:43,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:44,074 INFO L129 PetriNetUnfolder]: 232/930 cut-off events. [2021-12-06 18:42:44,075 INFO L130 PetriNetUnfolder]: For 443/451 co-relation queries the response was YES. [2021-12-06 18:42:44,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 930 events. 232/930 cut-off events. For 443/451 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5559 event pairs, 34 based on Foata normal form. 23/950 useless extension candidates. Maximal degree in co-relation 2329. Up to 305 conditions per place. [2021-12-06 18:42:44,080 INFO L132 encePairwiseOnDemand]: 99/114 looper letters, 84 selfloop transitions, 51 changer transitions 21/240 dead transitions. [2021-12-06 18:42:44,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 240 transitions, 1274 flow [2021-12-06 18:42:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:42:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:42:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 607 transitions. [2021-12-06 18:42:44,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8874269005847953 [2021-12-06 18:42:44,082 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 607 transitions. [2021-12-06 18:42:44,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 607 transitions. [2021-12-06 18:42:44,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:44,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 607 transitions. [2021-12-06 18:42:44,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 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) [2021-12-06 18:42:44,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:44,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2021-12-06 18:42:44,086 INFO L186 Difference]: Start difference. First operand has 136 places, 157 transitions, 576 flow. Second operand 6 states and 607 transitions. [2021-12-06 18:42:44,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 240 transitions, 1274 flow [2021-12-06 18:42:44,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 240 transitions, 1260 flow, removed 7 selfloop flow, removed 0 redundant places. [2021-12-06 18:42:44,092 INFO L242 Difference]: Finished difference. Result has 145 places, 191 transitions, 946 flow [2021-12-06 18:42:44,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=145, PETRI_TRANSITIONS=191} [2021-12-06 18:42:44,093 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 28 predicate places. [2021-12-06 18:42:44,093 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 191 transitions, 946 flow [2021-12-06 18:42:44,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 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) [2021-12-06 18:42:44,094 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:44,094 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:44,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:42:44,094 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash -84631545, now seen corresponding path program 1 times [2021-12-06 18:42:44,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:44,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052528344] [2021-12-06 18:42:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:44,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:44,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:44,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052528344] [2021-12-06 18:42:44,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052528344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:44,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:44,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 18:42:44,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914235418] [2021-12-06 18:42:44,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:44,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 18:42:44,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:44,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 18:42:44,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:42:44,228 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 114 [2021-12-06 18:42:44,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 191 transitions, 946 flow. Second operand has 11 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 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) [2021-12-06 18:42:44,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:44,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 114 [2021-12-06 18:42:44,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:44,535 INFO L129 PetriNetUnfolder]: 272/1088 cut-off events. [2021-12-06 18:42:44,535 INFO L130 PetriNetUnfolder]: For 1120/1126 co-relation queries the response was YES. [2021-12-06 18:42:44,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3229 conditions, 1088 events. 272/1088 cut-off events. For 1120/1126 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7197 event pairs, 46 based on Foata normal form. 13/1091 useless extension candidates. Maximal degree in co-relation 3145. Up to 387 conditions per place. [2021-12-06 18:42:44,544 INFO L132 encePairwiseOnDemand]: 101/114 looper letters, 128 selfloop transitions, 32 changer transitions 38/264 dead transitions. [2021-12-06 18:42:44,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 264 transitions, 1849 flow [2021-12-06 18:42:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:42:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 18:42:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1249 transitions. [2021-12-06 18:42:44,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6444788441692466 [2021-12-06 18:42:44,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1249 transitions. [2021-12-06 18:42:44,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1249 transitions. [2021-12-06 18:42:44,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:44,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1249 transitions. [2021-12-06 18:42:44,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 73.47058823529412) internal successors, (1249), 17 states have internal predecessors, (1249), 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) [2021-12-06 18:42:44,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 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) [2021-12-06 18:42:44,560 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 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) [2021-12-06 18:42:44,560 INFO L186 Difference]: Start difference. First operand has 145 places, 191 transitions, 946 flow. Second operand 17 states and 1249 transitions. [2021-12-06 18:42:44,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 264 transitions, 1849 flow [2021-12-06 18:42:44,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 264 transitions, 1795 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-12-06 18:42:44,575 INFO L242 Difference]: Finished difference. Result has 156 places, 189 transitions, 950 flow [2021-12-06 18:42:44,576 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=950, PETRI_PLACES=156, PETRI_TRANSITIONS=189} [2021-12-06 18:42:44,576 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 39 predicate places. [2021-12-06 18:42:44,577 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 189 transitions, 950 flow [2021-12-06 18:42:44,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 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) [2021-12-06 18:42:44,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:44,577 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:44,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:42:44,578 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:44,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:44,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2124956034, now seen corresponding path program 1 times [2021-12-06 18:42:44,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:44,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424987022] [2021-12-06 18:42:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:44,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:42:44,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:44,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424987022] [2021-12-06 18:42:44,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424987022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:44,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:44,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 18:42:44,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080269720] [2021-12-06 18:42:44,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:44,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 18:42:44,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 18:42:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:42:44,724 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 114 [2021-12-06 18:42:44,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 189 transitions, 950 flow. Second operand has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 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) [2021-12-06 18:42:44,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:44,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 114 [2021-12-06 18:42:44,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:45,187 INFO L129 PetriNetUnfolder]: 225/835 cut-off events. [2021-12-06 18:42:45,187 INFO L130 PetriNetUnfolder]: For 1001/1008 co-relation queries the response was YES. [2021-12-06 18:42:45,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 835 events. 225/835 cut-off events. For 1001/1008 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4924 event pairs, 29 based on Foata normal form. 13/847 useless extension candidates. Maximal degree in co-relation 2738. Up to 163 conditions per place. [2021-12-06 18:42:45,192 INFO L132 encePairwiseOnDemand]: 96/114 looper letters, 124 selfloop transitions, 66 changer transitions 20/279 dead transitions. [2021-12-06 18:42:45,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 279 transitions, 1950 flow [2021-12-06 18:42:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:42:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 18:42:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1326 transitions. [2021-12-06 18:42:45,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2021-12-06 18:42:45,196 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1326 transitions. [2021-12-06 18:42:45,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1326 transitions. [2021-12-06 18:42:45,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:45,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1326 transitions. [2021-12-06 18:42:45,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 78.0) internal successors, (1326), 17 states have internal predecessors, (1326), 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) [2021-12-06 18:42:45,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 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) [2021-12-06 18:42:45,203 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 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) [2021-12-06 18:42:45,204 INFO L186 Difference]: Start difference. First operand has 156 places, 189 transitions, 950 flow. Second operand 17 states and 1326 transitions. [2021-12-06 18:42:45,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 279 transitions, 1950 flow [2021-12-06 18:42:45,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 279 transitions, 1820 flow, removed 18 selfloop flow, removed 10 redundant places. [2021-12-06 18:42:45,214 INFO L242 Difference]: Finished difference. Result has 162 places, 202 transitions, 1206 flow [2021-12-06 18:42:45,215 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1206, PETRI_PLACES=162, PETRI_TRANSITIONS=202} [2021-12-06 18:42:45,216 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 45 predicate places. [2021-12-06 18:42:45,216 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 202 transitions, 1206 flow [2021-12-06 18:42:45,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 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) [2021-12-06 18:42:45,216 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:45,216 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:45,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:42:45,217 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-12-06 18:42:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1828021360, now seen corresponding path program 1 times [2021-12-06 18:42:45,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:45,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752834239] [2021-12-06 18:42:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:45,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:42:45,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:42:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:42:45,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:42:45,279 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:42:45,280 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2021-12-06 18:42:45,281 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2021-12-06 18:42:45,281 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2021-12-06 18:42:45,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2021-12-06 18:42:45,283 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2021-12-06 18:42:45,283 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2021-12-06 18:42:45,283 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2021-12-06 18:42:45,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:42:45,286 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:45,290 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:42:45,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:42:45,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:42:45 BasicIcfg [2021-12-06 18:42:45,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:42:45,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:42:45,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:42:45,333 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:42:45,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:42:41" (3/4) ... [2021-12-06 18:42:45,336 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:42:45,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:42:45,336 INFO L158 Benchmark]: Toolchain (without parser) took 4616.24ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 76.2MB in the beginning and 104.5MB in the end (delta: -28.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:42:45,336 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:42:45,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.36ms. Allocated memory is still 119.5MB. Free memory was 76.0MB in the beginning and 67.7MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:42:45,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.17ms. Allocated memory is still 119.5MB. Free memory was 67.7MB in the beginning and 65.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:42:45,337 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 63.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:42:45,337 INFO L158 Benchmark]: RCFGBuilder took 333.77ms. Allocated memory is still 119.5MB. Free memory was 63.3MB in the beginning and 49.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 18:42:45,338 INFO L158 Benchmark]: TraceAbstraction took 3718.76ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 48.8MB in the beginning and 105.5MB in the end (delta: -56.7MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2021-12-06 18:42:45,338 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 104.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:42:45,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.36ms. Allocated memory is still 119.5MB. Free memory was 76.0MB in the beginning and 67.7MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.17ms. Allocated memory is still 119.5MB. Free memory was 67.7MB in the beginning and 65.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 63.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.77ms. Allocated memory is still 119.5MB. Free memory was 63.3MB in the beginning and 49.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3718.76ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 48.8MB in the beginning and 105.5MB in the end (delta: -56.7MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 104.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={3:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [id={5:0}, m={3:0}, x={0:0}, y={0:0}] [L1235] 0 x = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-2:0}, x={-2:0}, x = malloc(sizeof(int))=101, y={0:0}] [L1236] 0 y = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-3:0}, x={-2:0}, y={-3:0}, y = malloc(sizeof(int))=103] [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-2:0}, y={-3:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=105, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1239] 0 printf("%d\n",*x) VAL [\read(*x)=105, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [*x = 3=106, arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 \read(*y) VAL [*x = 3=106, \read(*y)=102, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=104, \read(*y)=102, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: 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: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 147 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1720 IncrementalHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 152 mSDtfsCounter, 1720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1206occurred in iteration=11, InterpolantAutomatonStates: 73, 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, 0.7s InterpolantComputationTime, 751 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 652 ConstructedInterpolants, 0 QuantifiedInterpolants, 1608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 could not prove your program: unable to determine feasibility of some traces [2021-12-06 18:42:45,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61be7bdd-76f1-48d7-9d2e-a935238aa9d0/bin/uautomizer-DrprNOufMa/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