./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8 --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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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-e04fb08 [2022-11-16 12:02:52,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:02:52,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:02:52,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:02:52,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:02:52,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:02:52,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:02:52,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:02:52,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:02:52,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:02:52,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:02:52,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:02:52,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:02:52,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:02:52,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:02:52,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:02:52,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:02:52,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:02:52,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:02:52,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:02:52,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:02:52,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:02:52,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:02:52,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:02:52,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:02:52,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:02:52,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:02:52,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:02:52,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:02:52,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:02:52,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:02:52,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:02:52,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:02:52,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:02:52,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:02:52,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:02:52,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:02:52,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:02:52,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:02:52,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:02:52,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:02:52,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:02:52,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:02:52,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:02:52,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:02:52,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:02:52,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:02:52,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:02:52,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:02:52,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:02:52,468 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:02:52,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:02:52,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:02:52,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:02:52,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:02:52,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:02:52,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:02:52,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:02:52,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:02:52,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:02:52,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:02:52,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:02:52,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:02:52,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:02:52,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:02:52,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:02:52,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:02:52,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:02:52,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:02:52,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:02:52,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:02:52,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:02:52,475 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:02:52,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:02:52,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:02:52,476 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_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-16 12:02:52,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:02:52,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:02:52,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:02:52,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:02:52,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:02:52,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-16 12:02:52,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/data/5621b0865/2df16e3ebb62450e925b196bc95cae9c/FLAG7e24ef190 [2022-11-16 12:02:53,548 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:02:53,548 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-16 12:02:53,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/data/5621b0865/2df16e3ebb62450e925b196bc95cae9c/FLAG7e24ef190 [2022-11-16 12:02:53,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/data/5621b0865/2df16e3ebb62450e925b196bc95cae9c [2022-11-16 12:02:53,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:02:53,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:02:53,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:02:53,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:02:53,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:02:53,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:02:53" (1/1) ... [2022-11-16 12:02:53,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44205c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:53, skipping insertion in model container [2022-11-16 12:02:53,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:02:53" (1/1) ... [2022-11-16 12:02:53,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:02:53,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:02:54,083 WARN L229 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_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-16 12:02:54,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:02:54,269 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:02:54,285 WARN L229 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_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-16 12:02:54,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:02:54,370 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:02:54,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54 WrapperNode [2022-11-16 12:02:54,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:02:54,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:02:54,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:02:54,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:02:54,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,424 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-16 12:02:54,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:02:54,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:02:54,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:02:54,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:02:54,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:02:54,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:02:54,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:02:54,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:02:54,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:02:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:02:54,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:02:54,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:02:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:02:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:02:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:02:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:02:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:02:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:02:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:02:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:02:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:02:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:02:54,567 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:02:54,732 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:02:54,734 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:02:55,005 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:02:55,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:02:55,013 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:02:55,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:02:55 BoogieIcfgContainer [2022-11-16 12:02:55,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:02:55,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:02:55,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:02:55,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:02:55,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:02:53" (1/3) ... [2022-11-16 12:02:55,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccb02ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:02:55, skipping insertion in model container [2022-11-16 12:02:55,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (2/3) ... [2022-11-16 12:02:55,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccb02ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:02:55, skipping insertion in model container [2022-11-16 12:02:55,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:02:55" (3/3) ... [2022-11-16 12:02:55,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-16 12:02:55,044 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:02:55,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:02:55,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:02:55,054 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:02:55,140 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:02:55,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-11-16 12:02:55,228 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-16 12:02:55,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:02:55,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-16 12:02:55,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-11-16 12:02:55,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-11-16 12:02:55,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:02:55,253 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;@be2d74e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:02:55,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 12:02:55,272 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-11-16 12:02:55,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:02:55,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:55,273 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] [2022-11-16 12:02:55,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 12:02:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1355948845, now seen corresponding path program 1 times [2022-11-16 12:02:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:55,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683701855] [2022-11-16 12:02:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:02:55,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:02:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:02:55,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:02:55,597 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:02:55,599 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 12:02:55,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-16 12:02:55,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:02:55,602 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 12:02:55,609 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:02:55,609 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:02:55,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:02:55 BasicIcfg [2022-11-16 12:02:55,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:02:55,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:02:55,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:02:55,644 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:02:55,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:02:55" (3/4) ... [2022-11-16 12:02:55,646 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 12:02:55,694 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:02:55,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:02:55,696 INFO L158 Benchmark]: Toolchain (without parser) took 1886.09ms. Allocated memory is still 115.3MB. Free memory was 76.7MB in the beginning and 81.1MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:02:55,696 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:02:55,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.02ms. Allocated memory is still 115.3MB. Free memory was 76.5MB in the beginning and 82.3MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:02:55,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.01ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:02:55,698 INFO L158 Benchmark]: Boogie Preprocessor took 39.24ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:02:55,699 INFO L158 Benchmark]: RCFGBuilder took 549.15ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 65.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:02:55,699 INFO L158 Benchmark]: TraceAbstraction took 625.91ms. Allocated memory is still 115.3MB. Free memory was 65.1MB in the beginning and 85.2MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:02:55,700 INFO L158 Benchmark]: Witness Printer took 51.28ms. Allocated memory is still 115.3MB. Free memory was 85.2MB in the beginning and 81.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:02:55,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.02ms. Allocated memory is still 115.3MB. Free memory was 76.5MB in the beginning and 82.3MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.01ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.24ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.15ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 65.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 625.91ms. Allocated memory is still 115.3MB. Free memory was 65.1MB in the beginning and 85.2MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.28ms. Allocated memory is still 115.3MB. Free memory was 85.2MB in the beginning and 81.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}] [L682] 0 int g = 42; VAL [A={3:0}, B={4:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, B={4:0}, g=42, r=0] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=0] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=0] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0, t=42] [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 89 locations, 2 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: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 50 NumberOfCodeBlocks, 50 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! [2022-11-16 12:02:55,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7abf6eca-664f-42e0-b2a2-94ab24faf9b9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE