./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN --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 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- 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-6b4ec56 [2022-11-20 11:04:26,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:04:26,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:04:26,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:04:26,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:04:26,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:04:26,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:04:26,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:04:26,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:04:26,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:04:26,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:04:26,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:04:26,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:04:26,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:04:26,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:04:26,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:04:26,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:04:26,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:04:26,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:04:26,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:04:26,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:04:26,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:04:26,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:04:26,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:04:26,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:04:26,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:04:26,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:04:26,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:04:26,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:04:26,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:04:26,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:04:26,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:04:26,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:04:26,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:04:26,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:04:26,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:04:26,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:04:26,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:04:26,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:04:26,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:04:26,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:04:26,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:04:26,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:04:26,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:04:26,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:04:26,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:04:26,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:04:26,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:04:26,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:04:26,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:04:26,432 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:04:26,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:04:26,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:04:26,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:04:26,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:04:26,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:04:26,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:04:26,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:04:26,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:04:26,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:04:26,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:04:26,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:04:26,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:04:26,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:04:26,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:04:26,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:04:26,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:26,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:04:26,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:04:26,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:04:26,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:04:26,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:04:26,441 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:04:26,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:04:26,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:04:26,442 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_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2022-11-20 11:04:26,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:04:26,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:04:26,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:04:26,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:04:26,798 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:04:26,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-11-20 11:04:29,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:04:30,121 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:04:30,121 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-11-20 11:04:30,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/data/8b1dabac9/607cef38a29a42dfbf0a17b0f292bfad/FLAGb4a712b49 [2022-11-20 11:04:30,153 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/data/8b1dabac9/607cef38a29a42dfbf0a17b0f292bfad [2022-11-20 11:04:30,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:04:30,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:04:30,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:30,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:04:30,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:04:30,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:30,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf77387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30, skipping insertion in model container [2022-11-20 11:04:30,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:30,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:04:30,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:04:30,698 WARN L237 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_b9f5ab24-d152-4590-9ed8-f61f7f31e662/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-11-20 11:04:30,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:30,760 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:04:30,822 WARN L237 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_b9f5ab24-d152-4590-9ed8-f61f7f31e662/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-11-20 11:04:30,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:30,879 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:04:30,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30 WrapperNode [2022-11-20 11:04:30,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:30,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:30,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:04:30,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:04:30,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:30,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:30,964 INFO L138 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2022-11-20 11:04:30,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:30,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:04:30,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:04:30,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:04:30,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:30,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:04:31,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:04:31,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:04:31,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:04:31,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (1/1) ... [2022-11-20 11:04:31,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:04:31,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:04:31,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f5ab24-d152-4590-9ed8-f61f7f31e662/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:04:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:04:31,150 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 11:04:31,150 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 11:04:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:04:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:04:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:04:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:04:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-20 11:04:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-20 11:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:04:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:04:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:04:31,155 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:04:31,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:04:31,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:04:31,878 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:04:31,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:04:31,901 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-20 11:04:31,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:04:31 BoogieIcfgContainer [2022-11-20 11:04:31,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:04:31,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:04:31,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:04:31,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:04:31,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:04:30" (1/3) ... [2022-11-20 11:04:31,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41868d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:04:31, skipping insertion in model container [2022-11-20 11:04:31,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:30" (2/3) ... [2022-11-20 11:04:31,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41868d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:04:31, skipping insertion in model container [2022-11-20 11:04:31,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:04:31" (3/3) ... [2022-11-20 11:04:31,914 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2022-11-20 11:04:31,924 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:04:31,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:04:31,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:04:31,936 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:04:32,088 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 11:04:32,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 476 flow [2022-11-20 11:04:32,297 INFO L130 PetriNetUnfolder]: 58/398 cut-off events. [2022-11-20 11:04:32,297 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-20 11:04:32,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 398 events. 58/398 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1708 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-11-20 11:04:32,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 227 transitions, 476 flow [2022-11-20 11:04:32,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 476 flow [2022-11-20 11:04:32,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:04:32,339 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;@4e67c351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:04:32,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 11:04:32,364 INFO L130 PetriNetUnfolder]: 7/113 cut-off events. [2022-11-20 11:04:32,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:04:32,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:32,367 INFO L209 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] [2022-11-20 11:04:32,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-20 11:04:32,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:32,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2017405666, now seen corresponding path program 1 times [2022-11-20 11:04:32,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:32,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6951929] [2022-11-20 11:04:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:32,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:04:32,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:04:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:04:32,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:04:32,668 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:04:32,669 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-20 11:04:32,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-20 11:04:32,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-20 11:04:32,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-20 11:04:32,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-20 11:04:32,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-20 11:04:32,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:04:32,676 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:04:32,686 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:04:32,686 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 11:04:32,799 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-20 11:04:32,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 310 places, 361 transitions, 770 flow [2022-11-20 11:04:33,172 INFO L130 PetriNetUnfolder]: 197/1148 cut-off events. [2022-11-20 11:04:33,172 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-11-20 11:04:33,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 1148 events. 197/1148 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7027 event pairs, 1 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 711. Up to 32 conditions per place. [2022-11-20 11:04:33,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 361 transitions, 770 flow [2022-11-20 11:04:33,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 361 transitions, 770 flow [2022-11-20 11:04:33,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:04:33,230 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;@4e67c351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:04:33,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:04:33,305 INFO L130 PetriNetUnfolder]: 27/286 cut-off events. [2022-11-20 11:04:33,305 INFO L131 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-11-20 11:04:33,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:33,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:33,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-11-20 11:04:33,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:33,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1063024222, now seen corresponding path program 1 times [2022-11-20 11:04:33,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:33,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754260863] [2022-11-20 11:04:33,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:33,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:04:34,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:04:34,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754260863] [2022-11-20 11:04:34,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754260863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:34,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:34,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 11:04:34,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62326801] [2022-11-20 11:04:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:34,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:04:34,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:04:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:04:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:04:34,834 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 361 [2022-11-20 11:04:34,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 361 transitions, 770 flow. Second operand has 14 states, 14 states have (on average 207.0) internal successors, (2898), 14 states have internal predecessors, (2898), 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) [2022-11-20 11:04:34,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:04:34,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 361 [2022-11-20 11:04:34,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand