./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro --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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:48:42,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:48:42,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:48:42,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:48:42,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:48:42,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:48:42,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:48:42,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:48:42,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:48:42,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:48:42,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:48:42,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:48:42,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:48:42,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:48:42,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:48:42,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:48:42,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:48:42,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:48:42,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:48:42,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:48:42,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:48:42,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:48:42,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:48:42,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:48:42,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:48:42,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:48:42,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:48:42,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:48:42,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:48:42,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:48:42,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:48:42,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:48:42,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:48:42,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:48:42,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:48:42,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:48:42,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:48:42,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:48:42,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:48:42,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:48:42,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:48:42,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:48:42,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:48:42,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:48:42,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:48:42,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:48:42,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:48:42,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:48:42,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:48:42,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:48:42,541 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:48:42,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:48:42,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:48:42,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:48:42,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:48:42,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:48:42,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:48:42,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:48:42,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:48:42,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:48:42,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:48:42,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:48:42,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:48:42,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:48:42,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:48:42,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:48:42,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:42,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:48:42,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:48:42,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:48:42,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:48:42,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:48:42,549 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:48:42,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:48:42,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:48:42,550 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_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2022-11-18 19:48:42,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:48:42,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:48:42,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:48:42,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:48:42,855 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:48:42,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-18 19:48:42,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/data/286c5f874/beffd72295f14d33a7cf35c618be6578/FLAG8aae11d9d [2022-11-18 19:48:43,496 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:48:43,497 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-11-18 19:48:43,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/data/286c5f874/beffd72295f14d33a7cf35c618be6578/FLAG8aae11d9d [2022-11-18 19:48:43,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/data/286c5f874/beffd72295f14d33a7cf35c618be6578 [2022-11-18 19:48:43,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:48:43,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:48:43,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:43,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:48:43,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:48:43,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:43,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d23906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:43, skipping insertion in model container [2022-11-18 19:48:43,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:48:43" (1/1) ... [2022-11-18 19:48:43,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:48:43,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:48:44,307 WARN L234 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_ed2ea473-326b-445f-ae5a-57224dcdd186/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-18 19:48:44,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:44,363 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:48:44,415 WARN L234 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_ed2ea473-326b-445f-ae5a-57224dcdd186/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-11-18 19:48:44,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:48:44,479 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:48:44,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44 WrapperNode [2022-11-18 19:48:44,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:48:44,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:44,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:48:44,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:48:44,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,538 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 216 [2022-11-18 19:48:44,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:48:44,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:48:44,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:48:44,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:48:44,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:48:44,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:48:44,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:48:44,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:48:44,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (1/1) ... [2022-11-18 19:48:44,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:48:44,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:44,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:48:44,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed2ea473-326b-445f-ae5a-57224dcdd186/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-18 19:48:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-18 19:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:48:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-18 19:48:44,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:48:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:48:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:48:44,679 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:48:44,821 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:48:44,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:48:45,249 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:48:45,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:48:45,258 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-18 19:48:45,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:45 BoogieIcfgContainer [2022-11-18 19:48:45,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:48:45,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:48:45,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:48:45,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:48:45,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:48:43" (1/3) ... [2022-11-18 19:48:45,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0bd7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:45, skipping insertion in model container [2022-11-18 19:48:45,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:48:44" (2/3) ... [2022-11-18 19:48:45,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0bd7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:45, skipping insertion in model container [2022-11-18 19:48:45,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:45" (3/3) ... [2022-11-18 19:48:45,274 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2022-11-18 19:48:45,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:48:45,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:48:45,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 19:48:45,297 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:48:45,445 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 19:48:45,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 225 transitions, 472 flow [2022-11-18 19:48:45,755 INFO L130 PetriNetUnfolder]: 58/396 cut-off events. [2022-11-18 19:48:45,756 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-18 19:48:45,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 396 events. 58/396 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1723 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-11-18 19:48:45,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 225 transitions, 472 flow [2022-11-18 19:48:45,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 225 transitions, 472 flow [2022-11-18 19:48:45,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:45,810 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;@fc3e42b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:45,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 19:48:45,838 INFO L130 PetriNetUnfolder]: 7/111 cut-off events. [2022-11-18 19:48:45,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:48:45,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:48:45,840 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] [2022-11-18 19:48:45,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-18 19:48:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:45,848 INFO L85 PathProgramCache]: Analyzing trace with hash -399627708, now seen corresponding path program 1 times [2022-11-18 19:48:45,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:45,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15402427] [2022-11-18 19:48:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:48:46,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:48:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:48:46,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:48:46,100 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:48:46,101 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-18 19:48:46,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-18 19:48:46,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-18 19:48:46,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-18 19:48:46,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-18 19:48:46,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-18 19:48:46,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:48:46,106 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 19:48:46,109 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 19:48:46,110 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 19:48:46,207 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-18 19:48:46,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 359 transitions, 766 flow [2022-11-18 19:48:46,544 INFO L130 PetriNetUnfolder]: 197/1146 cut-off events. [2022-11-18 19:48:46,544 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-11-18 19:48:46,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 1146 events. 197/1146 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7020 event pairs, 1 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 709. Up to 32 conditions per place. [2022-11-18 19:48:46,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 359 transitions, 766 flow [2022-11-18 19:48:46,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 359 transitions, 766 flow [2022-11-18 19:48:46,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:46,588 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;@fc3e42b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:46,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:48:46,632 INFO L130 PetriNetUnfolder]: 27/284 cut-off events. [2022-11-18 19:48:46,632 INFO L131 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-11-18 19:48:46,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:48:46,633 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] [2022-11-18 19:48:46,635 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)] === [2022-11-18 19:48:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:46,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1458869981, now seen corresponding path program 1 times [2022-11-18 19:48:46,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:46,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631638437] [2022-11-18 19:48:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:46,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:47,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:47,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631638437] [2022-11-18 19:48:47,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631638437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:47,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:47,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:48:47,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731847274] [2022-11-18 19:48:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:47,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:48:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:47,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:48:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:48:47,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 359 [2022-11-18 19:48:47,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 359 transitions, 766 flow. Second operand has 12 states, 12 states have (on average 230.16666666666666) internal successors, (2762), 12 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:48:47,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:48:47,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 359 [2022-11-18 19:48:47,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand