./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- 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-5e519f3 [2022-11-02 21:01:53,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:01:53,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:01:53,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:01:53,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:01:53,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:01:53,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:01:53,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:01:53,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:01:53,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:01:53,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:01:53,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:01:53,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:01:53,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:01:53,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:01:53,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:01:53,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:01:53,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:01:53,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:01:53,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:01:53,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:01:53,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:01:53,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:01:53,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:01:53,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:01:53,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:01:53,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:01:53,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:01:53,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:01:53,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:01:53,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:01:53,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:01:53,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:01:53,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:01:53,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:01:53,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:01:53,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:01:53,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:01:53,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:01:53,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:01:53,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:01:53,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 21:01:53,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:01:53,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:01:53,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:01:53,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:01:53,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:01:53,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:01:53,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:01:53,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:01:53,360 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:01:53,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:01:53,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:01:53,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:01:53,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:01:53,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:01:53,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:01:53,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:01:53,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:01:53,363 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:01:53,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:01:53,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:01:53,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:01:53,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:01:53,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:01:53,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:01:53,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:01:53,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:01:53,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:01:53,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:01:53,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:01:53,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:01:53,367 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:01:53,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:01:53,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:01:53,368 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_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-11-02 21:01:53,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:01:53,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:01:53,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:01:53,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:01:53,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:01:53,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-02 21:01:53,739 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/data/bc074a2ac/6465d2538eeb40798583530ec5881a37/FLAGe8595784f [2022-11-02 21:01:54,249 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:01:54,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-02 21:01:54,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/data/bc074a2ac/6465d2538eeb40798583530ec5881a37/FLAGe8595784f [2022-11-02 21:01:54,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/data/bc074a2ac/6465d2538eeb40798583530ec5881a37 [2022-11-02 21:01:54,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:01:54,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:01:54,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:54,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:01:54,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:01:54,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:54" (1/1) ... [2022-11-02 21:01:54,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b1172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:54, skipping insertion in model container [2022-11-02 21:01:54,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:54" (1/1) ... [2022-11-02 21:01:54,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:01:54,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:01:55,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-02 21:01:55,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:55,230 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:01:55,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-02 21:01:55,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:55,431 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:01:55,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55 WrapperNode [2022-11-02 21:01:55,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:55,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:55,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:01:55,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:01:55,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,533 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-11-02 21:01:55,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:55,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:01:55,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:01:55,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:01:55,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:01:55,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:01:55,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:01:55,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:01:55,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (1/1) ... [2022-11-02 21:01:55,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:01:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:55,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:55,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:01:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:01:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:01:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:01:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:01:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:01:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:01:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:01:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:01:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:01:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:01:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:01:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:01:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:01:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:01:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:01:55,725 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:01:55,921 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:01:55,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:01:56,444 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:01:56,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:01:56,455 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-02 21:01:56,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:56 BoogieIcfgContainer [2022-11-02 21:01:56,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:01:56,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:01:56,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:01:56,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:01:56,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:01:54" (1/3) ... [2022-11-02 21:01:56,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459f0c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:01:56, skipping insertion in model container [2022-11-02 21:01:56,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:55" (2/3) ... [2022-11-02 21:01:56,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459f0c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:01:56, skipping insertion in model container [2022-11-02 21:01:56,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:56" (3/3) ... [2022-11-02 21:01:56,467 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-11-02 21:01:56,485 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:01:56,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:01:56,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 21:01:56,497 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:01:56,621 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 21:01:56,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 254 transitions, 516 flow [2022-11-02 21:01:56,831 INFO L130 PetriNetUnfolder]: 45/362 cut-off events. [2022-11-02 21:01:56,831 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:01:56,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 362 events. 45/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1082 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2022-11-02 21:01:56,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 254 transitions, 516 flow [2022-11-02 21:01:56,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 249 transitions, 503 flow [2022-11-02 21:01:56,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:01:56,865 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;@66af5f9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:01:56,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 21:01:56,886 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-02 21:01:56,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:01:56,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:56,888 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:56,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-02 21:01:56,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2053050589, now seen corresponding path program 1 times [2022-11-02 21:01:56,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:56,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128166691] [2022-11-02 21:01:56,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:56,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:57,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:57,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:57,256 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:01:57,258 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-02 21:01:57,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-02 21:01:57,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-11-02 21:01:57,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-02 21:01:57,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:01:57,265 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 21:01:57,273 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 21:01:57,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 21:01:57,325 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:01:57,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 338 transitions, 694 flow [2022-11-02 21:01:57,486 INFO L130 PetriNetUnfolder]: 76/579 cut-off events. [2022-11-02 21:01:57,486 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 21:01:57,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 579 events. 76/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2307 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 364. Up to 12 conditions per place. [2022-11-02 21:01:57,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 338 transitions, 694 flow [2022-11-02 21:01:57,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 338 transitions, 694 flow [2022-11-02 21:01:57,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:01:57,516 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;@66af5f9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:01:57,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-02 21:01:57,548 INFO L130 PetriNetUnfolder]: 3/154 cut-off events. [2022-11-02 21:01:57,548 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:01:57,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:57,549 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:57,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-02 21:01:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1836237953, now seen corresponding path program 1 times [2022-11-02 21:01:57,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:57,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861951152] [2022-11-02 21:01:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:57,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:57,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:57,741 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:01:57,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-11-02 21:01:57,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-02 21:01:57,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-11-02 21:01:57,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-11-02 21:01:57,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-02 21:01:57,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:01:57,744 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 21:01:57,747 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 21:01:57,747 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 21:01:57,833 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 21:01:57,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 422 transitions, 874 flow [2022-11-02 21:01:58,099 INFO L130 PetriNetUnfolder]: 112/829 cut-off events. [2022-11-02 21:01:58,099 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 21:01:58,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 829 events. 112/829 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3832 event pairs, 1 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 587. Up to 16 conditions per place. [2022-11-02 21:01:58,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 422 transitions, 874 flow [2022-11-02 21:01:58,133 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 422 transitions, 874 flow [2022-11-02 21:01:58,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:01:58,138 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;@66af5f9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:01:58,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 21:01:58,187 INFO L130 PetriNetUnfolder]: 7/247 cut-off events. [2022-11-02 21:01:58,189 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 21:01:58,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:58,190 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:58,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 21:01:58,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2036541720, now seen corresponding path program 1 times [2022-11-02 21:01:58,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428124503] [2022-11-02 21:01:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:58,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:58,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:58,390 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:01:58,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-02 21:01:58,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-02 21:01:58,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-11-02 21:01:58,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-02 21:01:58,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-02 21:01:58,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-02 21:01:58,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:01:58,392 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 21:01:58,393 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 21:01:58,393 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-02 21:01:58,492 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 21:01:58,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 447 places, 506 transitions, 1056 flow [2022-11-02 21:01:58,877 INFO L130 PetriNetUnfolder]: 160/1147 cut-off events. [2022-11-02 21:01:58,877 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-02 21:01:58,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1147 events. 160/1147 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5766 event pairs, 6 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 849. Up to 32 conditions per place. [2022-11-02 21:01:58,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 447 places, 506 transitions, 1056 flow [2022-11-02 21:01:58,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 447 places, 506 transitions, 1056 flow [2022-11-02 21:01:58,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:01:58,942 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;@66af5f9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:01:58,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 21:01:59,036 INFO L130 PetriNetUnfolder]: 20/386 cut-off events. [2022-11-02 21:01:59,036 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 21:01:59,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:59,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:59,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-02 21:01:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1884326887, now seen corresponding path program 1 times [2022-11-02 21:01:59,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:59,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945987167] [2022-11-02 21:01:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:59,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:59,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:59,204 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:01:59,204 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-11-02 21:01:59,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-02 21:01:59,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-02 21:01:59,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-11-02 21:01:59,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-11-02 21:01:59,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-02 21:01:59,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-02 21:01:59,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:01:59,207 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 21:01:59,212 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-11-02 21:01:59,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:01:59,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:01:59 BasicIcfg [2022-11-02 21:01:59,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:01:59,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:01:59,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:01:59,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:01:59,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:56" (3/4) ... [2022-11-02 21:01:59,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 21:01:59,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:01:59,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:01:59,596 INFO L158 Benchmark]: Toolchain (without parser) took 5064.96ms. Allocated memory was 119.5MB in the beginning and 180.4MB in the end (delta: 60.8MB). Free memory was 75.1MB in the beginning and 124.1MB in the end (delta: -49.0MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,596 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:59,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 898.45ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 64.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.96ms. Allocated memory is still 119.5MB. Free memory was 64.1MB in the beginning and 60.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,597 INFO L158 Benchmark]: Boogie Preprocessor took 76.24ms. Allocated memory is still 119.5MB. Free memory was 60.9MB in the beginning and 58.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,598 INFO L158 Benchmark]: RCFGBuilder took 846.25ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 58.3MB in the beginning and 98.4MB in the end (delta: -40.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,598 INFO L158 Benchmark]: TraceAbstraction took 2978.69ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 97.6MB in the beginning and 123.0MB in the end (delta: -25.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,599 INFO L158 Benchmark]: Witness Printer took 155.01ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 124.1MB in the end (delta: -1.1MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2022-11-02 21:01:59,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 898.45ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 64.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.96ms. Allocated memory is still 119.5MB. Free memory was 64.1MB in the beginning and 60.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.24ms. Allocated memory is still 119.5MB. Free memory was 60.9MB in the beginning and 58.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 846.25ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 58.3MB in the beginning and 98.4MB in the end (delta: -40.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2978.69ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 97.6MB in the beginning and 123.0MB in the end (delta: -25.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. * Witness Printer took 155.01ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 124.1MB in the end (delta: -1.1MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}] [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [__global_lock={3:0}, A={4:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1267] 0 struct s *p; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, malloc(sizeof(struct s))={9:0}] [L1269] EXPR 0 \read(*A) VAL [\read(*A)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [\old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, t_ids={14:0}] [L1270] 0 int i=0; VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={14:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={14:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [\old(x)=3, \old(x)=7, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={-2:0}, p={9:0}, p={9:0}, p={-2:0}, x=7, x=3] [L1247] 1 p -> next = ((void *)0) VAL [\old(x)=7, \old(x)=3, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, p={-2:0}, p={-2:0}, p={9:0}, p={9:0}, x=7, x=3] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [\read(**list)={9:0}, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [__global_lock={3:0}, __VERIFIER_nondet_int()=0, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}] [L1262] EXPR 1 p->datum VAL [__global_lock={3:0}, A={4:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}, p->datum=7] [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] [L1235] 1 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, A={4:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1270]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 297 locations, 4 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 368 locations, 5 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 439 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=874occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 510 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1056occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-11-02 21:01:59,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b71c4a-0c5e-467e-9e91-d004bb74cc6c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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