./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8 --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 c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:50:12,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:50:12,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:50:12,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:50:12,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:50:12,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:50:12,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:50:12,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:50:12,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:50:12,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:50:12,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:50:12,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:50:12,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:50:12,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:50:12,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:50:12,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:50:12,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:50:12,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:50:12,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:50:12,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:50:12,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:50:12,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:50:12,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:50:12,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:50:12,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:50:12,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:50:12,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:50:12,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:50:12,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:50:12,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:50:12,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:50:12,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:50:12,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:50:12,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:50:12,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:50:12,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:50:12,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:50:12,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:50:12,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:50:12,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:50:12,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:50:12,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:50:12,149 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:50:12,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:50:12,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:50:12,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:50:12,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:50:12,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:50:12,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:50:12,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:50:12,152 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:50:12,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:50:12,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:50:12,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:50:12,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:50:12,153 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:50:12,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:50:12,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:50:12,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:50:12,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:50:12,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:50:12,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:50:12,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:50:12,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:50:12,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:50:12,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:50:12,156 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:50:12,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:50:12,157 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:50:12,157 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f [2022-12-13 21:50:12,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:50:12,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:50:12,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:50:12,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:50:12,393 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:50:12,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-12-13 21:50:15,006 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:50:15,169 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:50:15,169 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-12-13 21:50:15,178 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/data/5b58e20cf/79fd902d3ed84b8dac2c6351b16d6284/FLAGe21218d0d [2022-12-13 21:50:15,189 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/data/5b58e20cf/79fd902d3ed84b8dac2c6351b16d6284 [2022-12-13 21:50:15,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:50:15,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:50:15,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:50:15,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:50:15,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:50:15,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e1dbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15, skipping insertion in model container [2022-12-13 21:50:15,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:50:15,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:50:15,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:50:15,476 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:50:15,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:50:15,537 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:50:15,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15 WrapperNode [2022-12-13 21:50:15,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:50:15,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:50:15,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:50:15,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:50:15,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,574 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-12-13 21:50:15,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:50:15,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:50:15,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:50:15,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:50:15,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:50:15,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:50:15,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:50:15,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:50:15,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (1/1) ... [2022-12-13 21:50:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:50:15,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:50:15,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:50:15,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:50:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:50:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:50:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:50:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:50:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:50:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:50:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:50:15,661 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:50:15,745 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:50:15,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:50:15,822 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:50:15,829 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:50:15,829 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:50:15,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:50:15 BoogieIcfgContainer [2022-12-13 21:50:15,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:50:15,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:50:15,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:50:15,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:50:15,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:50:15" (1/3) ... [2022-12-13 21:50:15,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dabd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:50:15, skipping insertion in model container [2022-12-13 21:50:15,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:50:15" (2/3) ... [2022-12-13 21:50:15,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dabd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:50:15, skipping insertion in model container [2022-12-13 21:50:15,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:50:15" (3/3) ... [2022-12-13 21:50:15,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2022-12-13 21:50:15,849 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:50:15,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:50:15,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:50:15,859 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:50:15,911 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:50:15,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 132 flow [2022-12-13 21:50:15,981 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-13 21:50:15,982 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:50:15,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 21:50:15,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 61 transitions, 132 flow [2022-12-13 21:50:15,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 59 transitions, 124 flow [2022-12-13 21:50:15,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:50:16,003 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 59 transitions, 124 flow [2022-12-13 21:50:16,006 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 59 transitions, 124 flow [2022-12-13 21:50:16,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 59 transitions, 124 flow [2022-12-13 21:50:16,024 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-13 21:50:16,024 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:50:16,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 21:50:16,025 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2022-12-13 21:50:16,791 INFO L134 LiptonReduction]: Checked pairs total: 2882 [2022-12-13 21:50:16,792 INFO L136 LiptonReduction]: Total number of compositions: 38 [2022-12-13 21:50:16,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:50:16,811 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@414b125a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:50:16,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 21:50:16,814 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-13 21:50:16,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:50:16,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:16,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:50:16,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 21:50:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash 5842616, now seen corresponding path program 1 times [2022-12-13 21:50:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:16,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322404834] [2022-12-13 21:50:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:50:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:50:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:50:16,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322404834] [2022-12-13 21:50:16,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322404834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:50:16,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:50:16,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:50:16,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865249072] [2022-12-13 21:50:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:50:16,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:50:16,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:50:16,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:50:17,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:50:17,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2022-12-13 21:50:17,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:50:17,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2022-12-13 21:50:17,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:50:17,097 INFO L130 PetriNetUnfolder]: 107/249 cut-off events. [2022-12-13 21:50:17,097 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 21:50:17,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 249 events. 107/249 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1131 event pairs, 46 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 465. Up to 105 conditions per place. [2022-12-13 21:50:17,102 INFO L137 encePairwiseOnDemand]: 91/99 looper letters, 22 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2022-12-13 21:50:17,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 131 flow [2022-12-13 21:50:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:50:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:50:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-12-13 21:50:17,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6161616161616161 [2022-12-13 21:50:17,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2022-12-13 21:50:17,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2022-12-13 21:50:17,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:50:17,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2022-12-13 21:50:17,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,124 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 48 flow. Second operand 3 states and 183 transitions. [2022-12-13 21:50:17,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 131 flow [2022-12-13 21:50:17,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:50:17,128 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 98 flow [2022-12-13 21:50:17,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2022-12-13 21:50:17,132 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2022-12-13 21:50:17,132 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 98 flow [2022-12-13 21:50:17,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:17,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:50:17,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:50:17,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 21:50:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1303983926, now seen corresponding path program 1 times [2022-12-13 21:50:17,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:17,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384448778] [2022-12-13 21:50:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:17,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:50:17,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:50:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:50:17,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384448778] [2022-12-13 21:50:17,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384448778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:50:17,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:50:17,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:50:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227316148] [2022-12-13 21:50:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:50:17,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:50:17,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:50:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:50:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:50:17,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2022-12-13 21:50:17,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:50:17,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2022-12-13 21:50:17,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:50:17,253 INFO L130 PetriNetUnfolder]: 91/230 cut-off events. [2022-12-13 21:50:17,253 INFO L131 PetriNetUnfolder]: For 116/117 co-relation queries the response was YES. [2022-12-13 21:50:17,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 230 events. 91/230 cut-off events. For 116/117 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1041 event pairs, 55 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 539. Up to 145 conditions per place. [2022-12-13 21:50:17,256 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 18 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2022-12-13 21:50:17,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 176 flow [2022-12-13 21:50:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:50:17,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:50:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2022-12-13 21:50:17,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2022-12-13 21:50:17,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 174 transitions. [2022-12-13 21:50:17,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions. [2022-12-13 21:50:17,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:50:17,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions. [2022-12-13 21:50:17,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,260 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 98 flow. Second operand 3 states and 174 transitions. [2022-12-13 21:50:17,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 176 flow [2022-12-13 21:50:17,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:50:17,262 INFO L231 Difference]: Finished difference. Result has 31 places, 31 transitions, 128 flow [2022-12-13 21:50:17,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=31, PETRI_TRANSITIONS=31} [2022-12-13 21:50:17,263 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2022-12-13 21:50:17,263 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 128 flow [2022-12-13 21:50:17,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:17,264 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:50:17,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:50:17,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 21:50:17,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:17,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1408187882, now seen corresponding path program 1 times [2022-12-13 21:50:17,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:17,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211394749] [2022-12-13 21:50:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:17,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:50:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:50:17,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:50:17,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211394749] [2022-12-13 21:50:17,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211394749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:50:17,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:50:17,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:50:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213308345] [2022-12-13 21:50:17,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:50:17,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:50:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:50:17,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:50:17,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:50:17,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2022-12-13 21:50:17,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:50:17,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2022-12-13 21:50:17,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:50:17,367 INFO L130 PetriNetUnfolder]: 101/250 cut-off events. [2022-12-13 21:50:17,367 INFO L131 PetriNetUnfolder]: For 149/153 co-relation queries the response was YES. [2022-12-13 21:50:17,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 250 events. 101/250 cut-off events. For 149/153 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1137 event pairs, 52 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 627. Up to 152 conditions per place. [2022-12-13 21:50:17,368 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 16 selfloop transitions, 7 changer transitions 5/38 dead transitions. [2022-12-13 21:50:17,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 212 flow [2022-12-13 21:50:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:50:17,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:50:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2022-12-13 21:50:17,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824915824915825 [2022-12-13 21:50:17,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2022-12-13 21:50:17,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2022-12-13 21:50:17,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:50:17,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2022-12-13 21:50:17,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,372 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 128 flow. Second operand 3 states and 173 transitions. [2022-12-13 21:50:17,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 38 transitions, 212 flow [2022-12-13 21:50:17,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:50:17,374 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 149 flow [2022-12-13 21:50:17,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-12-13 21:50:17,375 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2022-12-13 21:50:17,375 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 149 flow [2022-12-13 21:50:17,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:50:17,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:50:17,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:50:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:50:17,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 21:50:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:50:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash 368066529, now seen corresponding path program 1 times [2022-12-13 21:50:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:50:17,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091454651] [2022-12-13 21:50:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:50:17,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:50:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:50:17,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:50:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:50:17,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:50:17,426 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:50:17,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-12-13 21:50:17,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 21:50:17,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-12-13 21:50:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-12-13 21:50:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-12-13 21:50:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-12-13 21:50:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-12-13 21:50:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-12-13 21:50:17,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:50:17,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 21:50:17,437 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:50:17,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:50:17,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:50:17 BasicIcfg [2022-12-13 21:50:17,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:50:17,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:50:17,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:50:17,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:50:17,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:50:15" (3/4) ... [2022-12-13 21:50:17,462 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:50:17,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:50:17,463 INFO L158 Benchmark]: Toolchain (without parser) took 2270.27ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 78.5MB in the beginning and 103.0MB in the end (delta: -24.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,463 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:50:17,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.12ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 78.2MB in the beginning and 133.8MB in the end (delta: -55.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 169.9MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,465 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 131.0MB in the end (delta: 713.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,465 INFO L158 Benchmark]: RCFGBuilder took 235.79ms. Allocated memory is still 169.9MB. Free memory was 131.0MB in the beginning and 119.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,466 INFO L158 Benchmark]: TraceAbstraction took 1624.07ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 104.1MB in the end (delta: 15.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,466 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 169.9MB. Free memory was 104.1MB in the beginning and 103.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:50:17,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.12ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 78.2MB in the beginning and 133.8MB in the end (delta: -55.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 169.9MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 131.0MB in the end (delta: 713.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.79ms. Allocated memory is still 169.9MB. Free memory was 131.0MB in the beginning and 119.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1624.07ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 104.1MB in the end (delta: 15.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 169.9MB. Free memory was 104.1MB in the beginning and 103.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 66 PlacesBefore, 28 PlacesAfterwards, 59 TransitionsBefore, 21 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 2882 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1203, independent: 1042, independent conditional: 0, independent unconditional: 1042, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 562, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1203, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 562, unknown conditional: 0, unknown unconditional: 562] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int x; [L685] 0 pthread_t id1, id2; [L686] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={2:0}, id2={3:0}, pthread_create(&id1, ((void *)0), t_fun, ((void *)0))=-1, x=0] [L681] 1 x++ VAL [arg={0:0}, arg={0:0}, x=0] [L687] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, id1={2:0}, id2={3:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0, x=0] [L681] 2 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=0x++=5] Now there is a data race on ~x~0 between C: x++ [681] and C: x++ [681] - UnprovableResult [Line: 686]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 79 locations, 8 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 19 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:50:17,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b95a33-92d7-4ecb-8284-1c125b962bc3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE