./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX --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 b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:35:20,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:35:20,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:35:20,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:35:20,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:35:20,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:35:20,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:35:20,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:35:20,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:35:20,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:35:20,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:35:20,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:35:20,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:35:20,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:35:20,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:35:20,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:35:20,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:35:20,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:35:20,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:35:20,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:35:20,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:35:20,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:35:20,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:35:20,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:35:20,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:35:20,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:35:20,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:35:20,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:35:20,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:35:20,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:35:20,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:35:20,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:35:20,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:35:20,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:35:20,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:35:20,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:35:20,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:35:20,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:35:20,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:35:20,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:35:20,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:35:20,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-09 08:35:21,011 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:35:21,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:35:21,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:35:21,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:35:21,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:35:21,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:35:21,022 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:35:21,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:35:21,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:35:21,023 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:35:21,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:35:21,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:35:21,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:35:21,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:35:21,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:35:21,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:35:21,026 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-09 08:35:21,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:35:21,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:35:21,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:35:21,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:35:21,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:35:21,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:35:21,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:35:21,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:35:21,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:35:21,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:35:21,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:35:21,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:35:21,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:35:21,031 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:35:21,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:35:21,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:35:21,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:35:21,032 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_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd [2021-11-09 08:35:21,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:35:21,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:35:21,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:35:21,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:35:21,361 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:35:21,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2021-11-09 08:35:21,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/data/6393c9228/4055e316700e4373af6dbede1e1af540/FLAG90d0d20fd [2021-11-09 08:35:22,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:35:22,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2021-11-09 08:35:22,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/data/6393c9228/4055e316700e4373af6dbede1e1af540/FLAG90d0d20fd [2021-11-09 08:35:22,280 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/data/6393c9228/4055e316700e4373af6dbede1e1af540 [2021-11-09 08:35:22,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:35:22,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:35:22,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:35:22,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:35:22,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:35:22,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:22,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0448f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22, skipping insertion in model container [2021-11-09 08:35:22,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:22,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:35:22,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:35:22,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:35:22,856 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:35:22,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:35:22,962 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:35:22,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22 WrapperNode [2021-11-09 08:35:22,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:35:22,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:35:22,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:35:22,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:35:22,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:22,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:35:23,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:35:23,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:35:23,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:35:23,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:35:23,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:35:23,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:35:23,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:35:23,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (1/1) ... [2021-11-09 08:35:23,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:35:23,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:35:23,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:35:23,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:35:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:35:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:35:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:35:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-09 08:35:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-09 08:35:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-09 08:35:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:35:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:35:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:35:23,157 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:35:23,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:35:23,526 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-09 08:35:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:35:23 BoogieIcfgContainer [2021-11-09 08:35:23,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:35:23,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:35:23,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:35:23,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:35:23,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:35:22" (1/3) ... [2021-11-09 08:35:23,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb1f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:35:23, skipping insertion in model container [2021-11-09 08:35:23,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:22" (2/3) ... [2021-11-09 08:35:23,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb1f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:35:23, skipping insertion in model container [2021-11-09 08:35:23,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:35:23" (3/3) ... [2021-11-09 08:35:23,536 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i [2021-11-09 08:35:23,541 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:35:23,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:35:23,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-09 08:35:23,541 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:35:23,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,569 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,569 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,569 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,570 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,570 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,570 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,571 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,571 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,571 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,571 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,574 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,574 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,574 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,574 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,575 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,575 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,578 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,578 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,578 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,579 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,579 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,579 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,579 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,580 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,580 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,580 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,588 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_##fun~~TO~VOID_#in~#fp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,589 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_good_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,589 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,590 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~g~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:35:23,594 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:35:23,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:35:23,652 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 [2021-11-09 08:35:23,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-09 08:35:23,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 157 flow [2021-11-09 08:35:23,755 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-11-09 08:35:23,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:35:23,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-09 08:35:23,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 76 transitions, 157 flow [2021-11-09 08:35:23,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 75 transitions, 153 flow [2021-11-09 08:35:23,787 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-11-09 08:35:23,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:35:23,788 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:23,788 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] [2021-11-09 08:35:23,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:23,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1070662991, now seen corresponding path program 1 times [2021-11-09 08:35:23,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:23,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766050566] [2021-11-09 08:35:23,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:23,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:24,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:24,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766050566] [2021-11-09 08:35:24,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766050566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:24,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:24,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:35:24,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198528092] [2021-11-09 08:35:24,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:24,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:24,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:24,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:24,178 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 76 [2021-11-09 08:35:24,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2021-11-09 08:35:24,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:24,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 76 [2021-11-09 08:35:24,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:24,303 INFO L129 PetriNetUnfolder]: 9/186 cut-off events. [2021-11-09 08:35:24,307 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:35:24,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 186 events. 9/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 667 event pairs, 2 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 190. Up to 15 conditions per place. [2021-11-09 08:35:24,314 INFO L132 encePairwiseOnDemand]: 72/76 looper letters, 7 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2021-11-09 08:35:24,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 79 transitions, 181 flow [2021-11-09 08:35:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2021-11-09 08:35:24,330 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9692982456140351 [2021-11-09 08:35:24,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 221 transitions. [2021-11-09 08:35:24,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 221 transitions. [2021-11-09 08:35:24,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:24,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 221 transitions. [2021-11-09 08:35:24,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2021-11-09 08:35:24,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,354 INFO L186 Difference]: Start difference. First operand has 79 places, 75 transitions, 153 flow. Second operand 3 states and 221 transitions. [2021-11-09 08:35:24,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 79 transitions, 181 flow [2021-11-09 08:35:24,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 08:35:24,370 INFO L242 Difference]: Finished difference. Result has 82 places, 77 transitions, 174 flow [2021-11-09 08:35:24,372 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2021-11-09 08:35:24,372 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2021-11-09 08:35:24,373 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 174 flow [2021-11-09 08:35:24,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2021-11-09 08:35:24,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:24,374 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] [2021-11-09 08:35:24,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:35:24,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:24,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1133710753, now seen corresponding path program 1 times [2021-11-09 08:35:24,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:24,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594139051] [2021-11-09 08:35:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:24,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:24,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:24,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594139051] [2021-11-09 08:35:24,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594139051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:24,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:24,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:35:24,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331573000] [2021-11-09 08:35:24,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:24,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:24,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:24,455 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 76 [2021-11-09 08:35:24,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-09 08:35:24,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:24,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 76 [2021-11-09 08:35:24,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:24,556 INFO L129 PetriNetUnfolder]: 13/267 cut-off events. [2021-11-09 08:35:24,556 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-11-09 08:35:24,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 267 events. 13/267 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1307 event pairs, 5 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 314. Up to 28 conditions per place. [2021-11-09 08:35:24,563 INFO L132 encePairwiseOnDemand]: 71/76 looper letters, 12 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2021-11-09 08:35:24,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 83 transitions, 232 flow [2021-11-09 08:35:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:24,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-11-09 08:35:24,571 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9473684210526315 [2021-11-09 08:35:24,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:24,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2021-11-09 08:35:24,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,578 INFO L186 Difference]: Start difference. First operand has 82 places, 77 transitions, 174 flow. Second operand 3 states and 216 transitions. [2021-11-09 08:35:24,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 83 transitions, 232 flow [2021-11-09 08:35:24,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 08:35:24,584 INFO L242 Difference]: Finished difference. Result has 84 places, 80 transitions, 204 flow [2021-11-09 08:35:24,584 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2021-11-09 08:35:24,585 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2021-11-09 08:35:24,585 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 204 flow [2021-11-09 08:35:24,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-09 08:35:24,586 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:24,587 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] [2021-11-09 08:35:24,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:35:24,587 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:24,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:24,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1368733074, now seen corresponding path program 1 times [2021-11-09 08:35:24,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:24,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776471265] [2021-11-09 08:35:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:24,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:24,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:24,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776471265] [2021-11-09 08:35:24,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776471265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:24,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:24,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:35:24,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331293501] [2021-11-09 08:35:24,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:24,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:24,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:24,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:24,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2021-11-09 08:35:24,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-11-09 08:35:24,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:24,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2021-11-09 08:35:24,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:24,793 INFO L129 PetriNetUnfolder]: 16/228 cut-off events. [2021-11-09 08:35:24,793 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-11-09 08:35:24,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 228 events. 16/228 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 910 event pairs, 12 based on Foata normal form. 2/215 useless extension candidates. Maximal degree in co-relation 289. Up to 47 conditions per place. [2021-11-09 08:35:24,799 INFO L132 encePairwiseOnDemand]: 70/76 looper letters, 14 selfloop transitions, 6 changer transitions 0/80 dead transitions. [2021-11-09 08:35:24,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 226 flow [2021-11-09 08:35:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2021-11-09 08:35:24,801 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2021-11-09 08:35:24,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2021-11-09 08:35:24,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2021-11-09 08:35:24,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:24,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2021-11-09 08:35:24,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2021-11-09 08:35:24,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,823 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:24,823 INFO L186 Difference]: Start difference. First operand has 84 places, 80 transitions, 204 flow. Second operand 3 states and 208 transitions. [2021-11-09 08:35:24,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 226 flow [2021-11-09 08:35:24,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 80 transitions, 208 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-11-09 08:35:24,840 INFO L242 Difference]: Finished difference. Result has 81 places, 78 transitions, 190 flow [2021-11-09 08:35:24,840 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2021-11-09 08:35:24,841 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2021-11-09 08:35:24,841 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 190 flow [2021-11-09 08:35:24,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-11-09 08:35:24,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:24,842 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] [2021-11-09 08:35:24,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:35:24,842 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:24,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2015882708, now seen corresponding path program 1 times [2021-11-09 08:35:24,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:24,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094848823] [2021-11-09 08:35:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:24,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:24,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:24,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094848823] [2021-11-09 08:35:24,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094848823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:24,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:24,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:35:24,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447770134] [2021-11-09 08:35:24,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:24,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:24,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:24,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:24,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 76 [2021-11-09 08:35:24,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-11-09 08:35:24,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:24,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 76 [2021-11-09 08:35:24,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:24,992 INFO L129 PetriNetUnfolder]: 35/322 cut-off events. [2021-11-09 08:35:24,992 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-09 08:35:24,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 322 events. 35/322 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1589 event pairs, 14 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 436. Up to 53 conditions per place. [2021-11-09 08:35:24,995 INFO L132 encePairwiseOnDemand]: 70/76 looper letters, 8 selfloop transitions, 4 changer transitions 3/82 dead transitions. [2021-11-09 08:35:24,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 224 flow [2021-11-09 08:35:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:24,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-11-09 08:35:24,997 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9473684210526315 [2021-11-09 08:35:24,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:24,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-11-09 08:35:24,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2021-11-09 08:35:25,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,001 INFO L186 Difference]: Start difference. First operand has 81 places, 78 transitions, 190 flow. Second operand 3 states and 216 transitions. [2021-11-09 08:35:25,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 224 flow [2021-11-09 08:35:25,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 82 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 08:35:25,010 INFO L242 Difference]: Finished difference. Result has 83 places, 78 transitions, 204 flow [2021-11-09 08:35:25,011 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2021-11-09 08:35:25,011 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2021-11-09 08:35:25,011 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 204 flow [2021-11-09 08:35:25,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-11-09 08:35:25,012 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:25,012 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] [2021-11-09 08:35:25,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:35:25,013 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1776837047, now seen corresponding path program 1 times [2021-11-09 08:35:25,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:25,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122519539] [2021-11-09 08:35:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:25,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:25,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:25,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122519539] [2021-11-09 08:35:25,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122519539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:25,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:25,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:35:25,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087176575] [2021-11-09 08:35:25,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:25,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:25,083 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2021-11-09 08:35:25,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-11-09 08:35:25,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:25,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2021-11-09 08:35:25,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:25,171 INFO L129 PetriNetUnfolder]: 47/384 cut-off events. [2021-11-09 08:35:25,171 INFO L130 PetriNetUnfolder]: For 73/93 co-relation queries the response was YES. [2021-11-09 08:35:25,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 384 events. 47/384 cut-off events. For 73/93 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2126 event pairs, 23 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 619. Up to 88 conditions per place. [2021-11-09 08:35:25,173 INFO L132 encePairwiseOnDemand]: 71/76 looper letters, 13 selfloop transitions, 3 changer transitions 7/84 dead transitions. [2021-11-09 08:35:25,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 270 flow [2021-11-09 08:35:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2021-11-09 08:35:25,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9078947368421053 [2021-11-09 08:35:25,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2021-11-09 08:35:25,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2021-11-09 08:35:25,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:25,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2021-11-09 08:35:25,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-11-09 08:35:25,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,179 INFO L186 Difference]: Start difference. First operand has 83 places, 78 transitions, 204 flow. Second operand 3 states and 207 transitions. [2021-11-09 08:35:25,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 270 flow [2021-11-09 08:35:25,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 84 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 08:35:25,183 INFO L242 Difference]: Finished difference. Result has 85 places, 76 transitions, 206 flow [2021-11-09 08:35:25,184 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2021-11-09 08:35:25,184 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2021-11-09 08:35:25,184 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 206 flow [2021-11-09 08:35:25,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-11-09 08:35:25,185 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:25,185 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] [2021-11-09 08:35:25,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:35:25,185 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:25,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash 986043453, now seen corresponding path program 1 times [2021-11-09 08:35:25,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:25,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681296361] [2021-11-09 08:35:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:25,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:25,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:25,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681296361] [2021-11-09 08:35:25,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681296361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:25,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:25,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:35:25,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055432902] [2021-11-09 08:35:25,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:35:25,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:35:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:35:25,250 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2021-11-09 08:35:25,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-09 08:35:25,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:25,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2021-11-09 08:35:25,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:25,364 INFO L129 PetriNetUnfolder]: 18/364 cut-off events. [2021-11-09 08:35:25,365 INFO L130 PetriNetUnfolder]: For 105/117 co-relation queries the response was YES. [2021-11-09 08:35:25,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 364 events. 18/364 cut-off events. For 105/117 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2039 event pairs, 2 based on Foata normal form. 4/364 useless extension candidates. Maximal degree in co-relation 591. Up to 57 conditions per place. [2021-11-09 08:35:25,367 INFO L132 encePairwiseOnDemand]: 70/76 looper letters, 12 selfloop transitions, 6 changer transitions 2/82 dead transitions. [2021-11-09 08:35:25,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 82 transitions, 270 flow [2021-11-09 08:35:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:35:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:35:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2021-11-09 08:35:25,369 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2021-11-09 08:35:25,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2021-11-09 08:35:25,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2021-11-09 08:35:25,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:25,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2021-11-09 08:35:25,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2021-11-09 08:35:25,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-11-09 08:35:25,376 INFO L186 Difference]: Start difference. First operand has 85 places, 76 transitions, 206 flow. Second operand 3 states and 208 transitions. [2021-11-09 08:35:25,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 82 transitions, 270 flow [2021-11-09 08:35:25,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-09 08:35:25,385 INFO L242 Difference]: Finished difference. Result has 85 places, 78 transitions, 224 flow [2021-11-09 08:35:25,385 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2021-11-09 08:35:25,385 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2021-11-09 08:35:25,386 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 224 flow [2021-11-09 08:35:25,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-09 08:35:25,387 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:35:25,387 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] [2021-11-09 08:35:25,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:35:25,388 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 6 more)] === [2021-11-09 08:35:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash -415427779, now seen corresponding path program 1 times [2021-11-09 08:35:25,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:25,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935477372] [2021-11-09 08:35:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:25,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:25,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:25,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935477372] [2021-11-09 08:35:25,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935477372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:25,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:25,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:35:25,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154118516] [2021-11-09 08:35:25,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:35:25,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:25,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:35:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:35:25,549 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 76 [2021-11-09 08:35:25,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2021-11-09 08:35:25,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:35:25,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 76 [2021-11-09 08:35:25,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:35:25,678 INFO L129 PetriNetUnfolder]: 10/246 cut-off events. [2021-11-09 08:35:25,678 INFO L130 PetriNetUnfolder]: For 86/93 co-relation queries the response was YES. [2021-11-09 08:35:25,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 246 events. 10/246 cut-off events. For 86/93 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 937 event pairs, 2 based on Foata normal form. 8/254 useless extension candidates. Maximal degree in co-relation 399. Up to 29 conditions per place. [2021-11-09 08:35:25,681 INFO L132 encePairwiseOnDemand]: 69/76 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2021-11-09 08:35:25,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 81 transitions, 300 flow [2021-11-09 08:35:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:35:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 08:35:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 399 transitions. [2021-11-09 08:35:25,684 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-11-09 08:35:25,684 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 399 transitions. [2021-11-09 08:35:25,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 399 transitions. [2021-11-09 08:35:25,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:35:25,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 399 transitions. [2021-11-09 08:35:25,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 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) [2021-11-09 08:35:25,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 76.0) internal successors, (608), 8 states have internal predecessors, (608), 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) [2021-11-09 08:35:25,688 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 76.0) internal successors, (608), 8 states have internal predecessors, (608), 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) [2021-11-09 08:35:25,688 INFO L186 Difference]: Start difference. First operand has 85 places, 78 transitions, 224 flow. Second operand 7 states and 399 transitions. [2021-11-09 08:35:25,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 81 transitions, 300 flow [2021-11-09 08:35:25,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 282 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-11-09 08:35:25,691 INFO L242 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2021-11-09 08:35:25,692 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2021-11-09 08:35:25,692 INFO L334 CegarLoopForPetriNet]: 79 programPoint places, 7 predicate places. [2021-11-09 08:35:25,692 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2021-11-09 08:35:25,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2021-11-09 08:35:25,695 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,696 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,697 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:35:25,697 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,697 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,698 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,698 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,698 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,699 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-11-09 08:35:25,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 08:35:25,702 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:35:25,708 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-09 08:35:25,708 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:35:25,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:35:25 BasicIcfg [2021-11-09 08:35:25,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:35:25,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:35:25,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:35:25,716 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:35:25,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:35:23" (3/4) ... [2021-11-09 08:35:25,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 08:35:25,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-09 08:35:25,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-09 08:35:25,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-09 08:35:25,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 08:35:25,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 08:35:25,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:35:25,795 INFO L168 Benchmark]: Toolchain (without parser) took 3510.06 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.7 MB in the beginning and 54.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,798 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 63.4 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:35:25,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.22 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.6 MB in the beginning and 78.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 119.5 MB. Free memory was 78.1 MB in the beginning and 76.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,800 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 119.5 MB. Free memory was 76.1 MB in the beginning and 74.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,800 INFO L168 Benchmark]: RCFGBuilder took 487.00 ms. Allocated memory is still 119.5 MB. Free memory was 74.6 MB in the beginning and 62.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,800 INFO L168 Benchmark]: TraceAbstraction took 2185.83 ms. Allocated memory is still 119.5 MB. Free memory was 62.0 MB in the beginning and 56.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,801 INFO L168 Benchmark]: Witness Printer took 77.79 ms. Allocated memory is still 119.5 MB. Free memory was 56.5 MB in the beginning and 54.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:25,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 63.4 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 677.22 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.6 MB in the beginning and 78.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 119.5 MB. Free memory was 78.1 MB in the beginning and 76.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 119.5 MB. Free memory was 76.1 MB in the beginning and 74.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 487.00 ms. Allocated memory is still 119.5 MB. Free memory was 74.6 MB in the beginning and 62.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2185.83 ms. Allocated memory is still 119.5 MB. Free memory was 62.0 MB in the beginning and 56.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Witness Printer took 77.79 ms. Allocated memory is still 119.5 MB. Free memory was 56.5 MB in the beginning and 54.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - PositiveResult [Line: 941]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 944]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 9 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: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 29 SDslu, 4 SDs, 0 SdLazy, 139 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 0.4s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-09 08:35:25,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acaa51-0387-4767-a83a-e434fbccb89e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE