./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 8393723b 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_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/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_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:02:02,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:02,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:03,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:03,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:03,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:03,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:03,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:03,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:03,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:03,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:03,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:03,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:03,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:03,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:03,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:03,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:03,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:03,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:03,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:03,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:03,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:03,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:03,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:03,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:03,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:03,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:03,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:03,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:03,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:03,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:03,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:03,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:03,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:03,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:03,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:03,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:03,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:03,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:03,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:03,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:03,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:02:03,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:03,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:03,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:03,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:03,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:03,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:03,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:03,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:03,150 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:03,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:03,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:03,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:02:03,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:03,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:03,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:03,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:03,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:03,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:03,154 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:02:03,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:03,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:03,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:03,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:03,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:03,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:03,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:03,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:03,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:03,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:03,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:03,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:03,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:03,160 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:03,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:03,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:03,160 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_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f [2022-11-18 20:02:03,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:03,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:03,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:03,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:03,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:03,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-11-18 20:02:03,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/data/3cc603c39/bbb25b203de4457e9044da9612faa888/FLAGc059aaf47 [2022-11-18 20:02:04,256 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:04,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-11-18 20:02:04,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/data/3cc603c39/bbb25b203de4457e9044da9612faa888/FLAGc059aaf47 [2022-11-18 20:02:04,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/data/3cc603c39/bbb25b203de4457e9044da9612faa888 [2022-11-18 20:02:04,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:04,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:04,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:04,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:04,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:04,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:04" (1/1) ... [2022-11-18 20:02:04,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc7b22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:04, skipping insertion in model container [2022-11-18 20:02:04,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:04" (1/1) ... [2022-11-18 20:02:04,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:04,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:04,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:04,997 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:05,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:05,121 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:05,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05 WrapperNode [2022-11-18 20:02:05,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:05,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:05,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:05,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:05,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,185 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-18 20:02:05,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:05,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:05,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:05,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:05,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:05,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:05,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:05,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:05,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (1/1) ... [2022-11-18 20:02:05,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:05,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:05,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:05,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:02:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:02:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:02:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:02:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:02:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:05,297 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:02:05,494 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:05,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:05,637 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:05,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:05,659 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:02:05,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:05 BoogieIcfgContainer [2022-11-18 20:02:05,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:05,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:05,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:05,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:05,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:04" (1/3) ... [2022-11-18 20:02:05,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf35f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:05, skipping insertion in model container [2022-11-18 20:02:05,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:05" (2/3) ... [2022-11-18 20:02:05,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf35f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:05, skipping insertion in model container [2022-11-18 20:02:05,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:05" (3/3) ... [2022-11-18 20:02:05,694 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2022-11-18 20:02:05,704 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:02:05,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:05,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:02:05,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:02:05,820 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:02:05,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 132 flow [2022-11-18 20:02:05,904 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-18 20:02:05,905 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:02:05,908 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. [2022-11-18 20:02:05,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 61 transitions, 132 flow [2022-11-18 20:02:05,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 59 transitions, 124 flow [2022-11-18 20:02:05,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:05,932 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;@5c7b8450, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:05,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:02:05,941 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:02:05,941 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:02:05,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:05,942 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:05,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:02:05,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:05,949 INFO L85 PathProgramCache]: Analyzing trace with hash -110706461, now seen corresponding path program 1 times [2022-11-18 20:02:05,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:05,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369955270] [2022-11-18 20:02:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369955270] [2022-11-18 20:02:06,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369955270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:06,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:06,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:06,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987699581] [2022-11-18 20:02:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:06,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:06,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:06,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2022-11-18 20:02:06,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:06,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2022-11-18 20:02:06,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:06,603 INFO L130 PetriNetUnfolder]: 42/224 cut-off events. [2022-11-18 20:02:06,608 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 20:02:06,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 224 events. 42/224 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1037 event pairs, 13 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 322. Up to 61 conditions per place. [2022-11-18 20:02:06,622 INFO L137 encePairwiseOnDemand]: 53/61 looper letters, 19 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2022-11-18 20:02:06,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 199 flow [2022-11-18 20:02:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2022-11-18 20:02:06,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9180327868852459 [2022-11-18 20:02:06,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2022-11-18 20:02:06,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2022-11-18 20:02:06,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:06,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2022-11-18 20:02:06,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,666 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 124 flow. Second operand 3 states and 168 transitions. [2022-11-18 20:02:06,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 199 flow [2022-11-18 20:02:06,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:06,683 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 174 flow [2022-11-18 20:02:06,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2022-11-18 20:02:06,689 INFO L288 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2022-11-18 20:02:06,689 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 174 flow [2022-11-18 20:02:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:06,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:06,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:02:06,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:02:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash 606367436, now seen corresponding path program 1 times [2022-11-18 20:02:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:06,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255154071] [2022-11-18 20:02:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:06,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:06,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:06,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255154071] [2022-11-18 20:02:06,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255154071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:06,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:06,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100392618] [2022-11-18 20:02:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:06,801 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 61 [2022-11-18 20:02:06,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:06,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 61 [2022-11-18 20:02:06,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:06,914 INFO L130 PetriNetUnfolder]: 61/269 cut-off events. [2022-11-18 20:02:06,914 INFO L131 PetriNetUnfolder]: For 88/91 co-relation queries the response was YES. [2022-11-18 20:02:06,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 269 events. 61/269 cut-off events. For 88/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1335 event pairs, 27 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 509. Up to 111 conditions per place. [2022-11-18 20:02:06,919 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 25 selfloop transitions, 7 changer transitions 1/76 dead transitions. [2022-11-18 20:02:06,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 76 transitions, 282 flow [2022-11-18 20:02:06,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2022-11-18 20:02:06,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8797814207650273 [2022-11-18 20:02:06,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 161 transitions. [2022-11-18 20:02:06,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 161 transitions. [2022-11-18 20:02:06,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:06,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 161 transitions. [2022-11-18 20:02:06,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,927 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 174 flow. Second operand 3 states and 161 transitions. [2022-11-18 20:02:06,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 76 transitions, 282 flow [2022-11-18 20:02:06,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 76 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:06,931 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 218 flow [2022-11-18 20:02:06,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2022-11-18 20:02:06,933 INFO L288 CegarLoopForPetriNet]: 66 programPoint places, 4 predicate places. [2022-11-18 20:02:06,933 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 218 flow [2022-11-18 20:02:06,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:06,934 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:06,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:06,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:02:06,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:02:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash -960580309, now seen corresponding path program 1 times [2022-11-18 20:02:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888723004] [2022-11-18 20:02:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:02:07,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:07,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888723004] [2022-11-18 20:02:07,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888723004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:07,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:07,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:07,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152896424] [2022-11-18 20:02:07,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:07,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:07,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:07,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:07,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:07,010 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 61 [2022-11-18 20:02:07,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:07,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:02:07,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 61 [2022-11-18 20:02:07,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:02:07,121 INFO L130 PetriNetUnfolder]: 61/273 cut-off events. [2022-11-18 20:02:07,122 INFO L131 PetriNetUnfolder]: For 150/152 co-relation queries the response was YES. [2022-11-18 20:02:07,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 273 events. 61/273 cut-off events. For 150/152 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1344 event pairs, 21 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 587. Up to 109 conditions per place. [2022-11-18 20:02:07,125 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 21 selfloop transitions, 7 changer transitions 10/81 dead transitions. [2022-11-18 20:02:07,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 81 transitions, 342 flow [2022-11-18 20:02:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:02:07,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2022-11-18 20:02:07,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8743169398907104 [2022-11-18 20:02:07,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 160 transitions. [2022-11-18 20:02:07,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 160 transitions. [2022-11-18 20:02:07,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:02:07,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 160 transitions. [2022-11-18 20:02:07,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-18 20:02:07,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:07,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:07,153 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 218 flow. Second operand 3 states and 160 transitions. [2022-11-18 20:02:07,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 81 transitions, 342 flow [2022-11-18 20:02:07,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 81 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:02:07,162 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 236 flow [2022-11-18 20:02:07,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2022-11-18 20:02:07,163 INFO L288 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2022-11-18 20:02:07,163 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 236 flow [2022-11-18 20:02:07,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:02:07,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:02:07,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:07,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:02:07,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:02:07,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1637414598, now seen corresponding path program 1 times [2022-11-18 20:02:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:07,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980828274] [2022-11-18 20:02:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:02:07,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:02:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:02:07,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:02:07,247 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:02:07,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-18 20:02:07,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-11-18 20:02:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-11-18 20:02:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-18 20:02:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-18 20:02:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-18 20:02:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-18 20:02:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-18 20:02:07,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:02:07,254 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:02:07,262 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:02:07,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:02:07,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:02:07 BasicIcfg [2022-11-18 20:02:07,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:02:07,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:02:07,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:02:07,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:02:07,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:05" (3/4) ... [2022-11-18 20:02:07,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:02:07,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:02:07,309 INFO L158 Benchmark]: Toolchain (without parser) took 2786.63ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 86.8MB in the beginning and 148.7MB in the end (delta: -61.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:07,310 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:07,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.15ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 93.6MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:02:07,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.31ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 91.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:02:07,311 INFO L158 Benchmark]: Boogie Preprocessor took 21.77ms. Allocated memory is still 125.8MB. Free memory was 91.8MB in the beginning and 90.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:07,312 INFO L158 Benchmark]: RCFGBuilder took 453.79ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 79.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:02:07,313 INFO L158 Benchmark]: TraceAbstraction took 1639.25ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 149.8MB in the end (delta: -70.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:07,313 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 186.6MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:02:07,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.15ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 93.6MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.31ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 91.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.77ms. Allocated memory is still 125.8MB. Free memory was 91.8MB in the beginning and 90.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 453.79ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 79.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1639.25ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 78.9MB in the beginning and 149.8MB in the end (delta: -70.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 186.6MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int x; VAL [x=0] [L685] 0 pthread_t id1, id2; VAL [id1={3:0}, id2={2:0}, x=0] [L686] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id1, ((void *)0), t_fun, ((void *)0))=-1, x=0] [L687] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0, x=0] [L681] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1, 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 40 mSDtfsCounter, 65 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=236occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:02:07,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca93a84-1914-49c5-a6b0-b339266bf159/bin/uautomizer-TMbwUNV5ro/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