./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 04:39:15,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 04:39:15,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 04:39:15,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 04:39:15,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 04:39:15,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 04:39:15,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 04:39:15,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 04:39:15,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 04:39:15,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 04:39:15,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 04:39:15,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 04:39:15,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 04:39:15,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 04:39:15,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 04:39:15,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 04:39:15,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 04:39:15,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 04:39:15,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 04:39:15,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 04:39:15,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 04:39:15,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 04:39:15,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 04:39:15,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 04:39:15,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 04:39:15,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 04:39:15,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 04:39:15,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 04:39:15,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 04:39:15,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 04:39:15,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 04:39:15,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 04:39:15,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 04:39:15,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 04:39:15,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 04:39:15,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 04:39:15,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 04:39:15,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 04:39:15,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 04:39:15,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 04:39:15,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 04:39:15,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-10-24 04:39:15,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 04:39:15,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 04:39:15,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-24 04:39:15,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-24 04:39:15,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 04:39:15,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 04:39:15,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-24 04:39:15,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 04:39:15,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 04:39:15,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 04:39:15,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 04:39:15,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 04:39:15,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 04:39:15,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 04:39:15,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 04:39:15,653 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 04:39:15,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 04:39:15,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 04:39:15,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 04:39:15,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 04:39:15,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 04:39:15,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-24 04:39:15,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 04:39:15,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 04:39:15,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 04:39:15,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 04:39:15,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 04:39:15,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-24 04:39:15,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 04:39:15,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-24 04:39:15,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-24 04:39:15,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 04:39:15,659 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-24 04:39:15,659 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-24 04:39:15,660 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_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 [2021-10-24 04:39:15,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 04:39:15,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 04:39:15,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 04:39:15,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 04:39:15,937 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 04:39:15,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2021-10-24 04:39:16,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/data/eba7dd5c2/e1ee2921a0cf414294eebed11c06c81f/FLAG867593106 [2021-10-24 04:39:16,603 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 04:39:16,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2021-10-24 04:39:16,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/data/eba7dd5c2/e1ee2921a0cf414294eebed11c06c81f/FLAG867593106 [2021-10-24 04:39:16,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/data/eba7dd5c2/e1ee2921a0cf414294eebed11c06c81f [2021-10-24 04:39:16,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 04:39:16,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 04:39:16,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 04:39:16,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 04:39:16,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 04:39:16,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:39:16" (1/1) ... [2021-10-24 04:39:16,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54773a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:16, skipping insertion in model container [2021-10-24 04:39:16,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:39:16" (1/1) ... [2021-10-24 04:39:16,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 04:39:16,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 04:39:17,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-24 04:39:17,372 WARN L228 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_e14887ab-891d-43a2-96a1-bb4c6799f296/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-10-24 04:39:17,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 04:39:17,408 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 04:39:17,441 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-24 04:39:17,472 WARN L228 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_e14887ab-891d-43a2-96a1-bb4c6799f296/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-10-24 04:39:17,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 04:39:17,532 INFO L208 MainTranslator]: Completed translation [2021-10-24 04:39:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17 WrapperNode [2021-10-24 04:39:17,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 04:39:17,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 04:39:17,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 04:39:17,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 04:39:17,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 04:39:17,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 04:39:17,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 04:39:17,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 04:39:17,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 04:39:17,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 04:39:17,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 04:39:17,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 04:39:17,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (1/1) ... [2021-10-24 04:39:17,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 04:39:17,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 [2021-10-24 04:39:17,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 04:39:17,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 04:39:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 04:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 04:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-24 04:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-10-24 04:39:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-10-24 04:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 04:39:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 04:39:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 04:39:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-24 04:39:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 04:39:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 04:39:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-10-24 04:39:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-10-24 04:39:17,768 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 04:39:18,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 04:39:18,156 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-24 04:39:18,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:39:18 BoogieIcfgContainer [2021-10-24 04:39:18,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 04:39:18,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 04:39:18,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 04:39:18,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 04:39:18,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:39:16" (1/3) ... [2021-10-24 04:39:18,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59adee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:39:18, skipping insertion in model container [2021-10-24 04:39:18,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:17" (2/3) ... [2021-10-24 04:39:18,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59adee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:39:18, skipping insertion in model container [2021-10-24 04:39:18,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:39:18" (3/3) ... [2021-10-24 04:39:18,168 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-10-24 04:39:18,173 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 04:39:18,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 04:39:18,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 04:39:18,174 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 04:39:18,277 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,277 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,277 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,278 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,278 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,278 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,278 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,279 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,279 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,280 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,280 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,280 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,281 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,282 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,283 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,284 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,284 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,284 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,285 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,285 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,285 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,285 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,286 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,286 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,286 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,287 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,287 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,287 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,287 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,288 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,288 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,288 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,288 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,288 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,289 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,289 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,290 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,299 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,300 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,300 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,300 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,300 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,301 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,301 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,301 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,301 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,302 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,302 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,303 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,304 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,306 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,306 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,307 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,309 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,311 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,311 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,311 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,312 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,312 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,335 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,335 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,336 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,337 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,337 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,337 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,338 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,338 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,338 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,338 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,339 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,339 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,339 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,339 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,340 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,340 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,340 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,340 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,340 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,341 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,341 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,341 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,341 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,353 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,353 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,353 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,353 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,362 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,363 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,363 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,363 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,364 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,378 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,389 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,390 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,391 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,391 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,391 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,392 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,401 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,402 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,403 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,403 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,403 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,403 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,403 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,404 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,404 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,411 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 04:39:18,448 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-24 04:39:18,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 04:39:18,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 [2021-10-24 04:39:18,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-24 04:39:18,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-24 04:39:18,546 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork2 ======== [2021-10-24 04:39:18,553 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 04:39:18,553 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 04:39:18,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:18,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1087251306, now seen corresponding path program 1 times [2021-10-24 04:39:18,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:18,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760279593] [2021-10-24 04:39:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:18,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:19,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:19,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760279593] [2021-10-24 04:39:19,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760279593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:19,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:19,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 04:39:19,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984701258] [2021-10-24 04:39:19,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 04:39:19,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 04:39:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 04:39:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:19,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:19,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2021-10-24 04:39:19,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 04:39:19,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 04:39:19,616 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash -266015492, now seen corresponding path program 1 times [2021-10-24 04:39:19,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:19,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532344903] [2021-10-24 04:39:19,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:19,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:19,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:19,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532344903] [2021-10-24 04:39:19,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532344903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:19,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:19,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 04:39:19,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555297040] [2021-10-24 04:39:19,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 04:39:19,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 04:39:19,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 04:39:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:19,867 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:19,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2021-10-24 04:39:19,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 04:39:19,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 04:39:20,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 04:39:20,143 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:20,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1456801825, now seen corresponding path program 1 times [2021-10-24 04:39:20,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:20,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141188705] [2021-10-24 04:39:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:20,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:20,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:20,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141188705] [2021-10-24 04:39:20,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141188705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:20,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:20,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-24 04:39:20,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777516486] [2021-10-24 04:39:20,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 04:39:20,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:20,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 04:39:20,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-24 04:39:20,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:20,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:20,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 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) [2021-10-24 04:39:20,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:20,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-24 04:39:20,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:21,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 04:39:21,138 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:21,138 INFO L82 PathProgramCache]: Analyzing trace with hash -437860635, now seen corresponding path program 1 times [2021-10-24 04:39:21,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:21,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409043755] [2021-10-24 04:39:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:21,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:21,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:21,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409043755] [2021-10-24 04:39:21,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409043755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:21,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:21,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-24 04:39:21,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451486990] [2021-10-24 04:39:21,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 04:39:21,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 04:39:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-24 04:39:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:21,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:21,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-10-24 04:39:21,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:21,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:21,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:21,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 04:39:24,331 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:24,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:24,332 INFO L82 PathProgramCache]: Analyzing trace with hash 245321117, now seen corresponding path program 1 times [2021-10-24 04:39:24,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:24,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36064182] [2021-10-24 04:39:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:24,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:24,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:24,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36064182] [2021-10-24 04:39:24,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36064182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:24,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:24,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 04:39:24,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996736655] [2021-10-24 04:39:24,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 04:39:24,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:24,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 04:39:24,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 04:39:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:24,415 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:24,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-10-24 04:39:24,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 04:39:24,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 04:39:24,517 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:24,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1101368951, now seen corresponding path program 1 times [2021-10-24 04:39:24,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:24,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387914491] [2021-10-24 04:39:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:24,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 04:39:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 04:39:24,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 04:39:24,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387914491] [2021-10-24 04:39:24,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387914491] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 04:39:24,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 04:39:24,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 04:39:24,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283875289] [2021-10-24 04:39:24,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 04:39:24,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 04:39:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 04:39:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 04:39:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:24,690 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 04:39:24,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2021-10-24 04:39:24,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 04:39:24,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 04:39:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 04:39:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 04:39:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 04:39:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 04:39:24,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 04:39:24,889 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 04:39:24,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 04:39:24,889 INFO L82 PathProgramCache]: Analyzing trace with hash 396694175, now seen corresponding path program 2 times [2021-10-24 04:39:24,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 04:39:24,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803589173] [2021-10-24 04:39:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 04:39:24,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 04:39:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 04:39:24,936 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 04:39:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 04:39:25,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-24 04:39:25,025 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 04:39:25,027 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 04:39:25,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 04:39:25,044 INFO L308 ceAbstractionStarter]: Result for error location readerThread1of1ForFork2 was UNSAFE (1/3) [2021-10-24 04:39:25,048 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 04:39:25,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 04:39:25,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:39:25 BasicIcfg [2021-10-24 04:39:25,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 04:39:25,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 04:39:25,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 04:39:25,174 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 04:39:25,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:39:18" (3/4) ... [2021-10-24 04:39:25,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 04:39:25,343 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/witness.graphml [2021-10-24 04:39:25,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 04:39:25,346 INFO L168 Benchmark]: Toolchain (without parser) took 8477.77 ms. Allocated memory was 125.8 MB in the beginning and 316.7 MB in the end (delta: 190.8 MB). Free memory was 95.3 MB in the beginning and 214.8 MB in the end (delta: -119.4 MB). Peak memory consumption was 219.5 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,346 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 78.9 MB in the beginning and 78.8 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 04:39:25,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.17 ms. Allocated memory is still 125.8 MB. Free memory was 95.1 MB in the beginning and 90.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.86 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 88.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,348 INFO L168 Benchmark]: Boogie Preprocessor took 38.95 ms. Allocated memory is still 125.8 MB. Free memory was 88.5 MB in the beginning and 87.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,348 INFO L168 Benchmark]: RCFGBuilder took 501.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.1 MB in the beginning and 72.1 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,349 INFO L168 Benchmark]: TraceAbstraction took 7012.21 ms. Allocated memory was 125.8 MB in the beginning and 316.7 MB in the end (delta: 190.8 MB). Free memory was 71.6 MB in the beginning and 92.7 MB in the end (delta: -21.1 MB). Peak memory consumption was 171.8 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,349 INFO L168 Benchmark]: Witness Printer took 170.66 ms. Allocated memory is still 316.7 MB. Free memory was 92.7 MB in the beginning and 214.8 MB in the end (delta: -122.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-24 04:39:25,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 78.9 MB in the beginning and 78.8 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 665.17 ms. Allocated memory is still 125.8 MB. Free memory was 95.1 MB in the beginning and 90.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.86 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 88.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.95 ms. Allocated memory is still 125.8 MB. Free memory was 88.5 MB in the beginning and 87.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 501.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.1 MB in the beginning and 72.1 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7012.21 ms. Allocated memory was 125.8 MB in the beginning and 316.7 MB in the end (delta: 190.8 MB). Free memory was 71.6 MB in the beginning and 92.7 MB in the end (delta: -21.1 MB). Peak memory consumption was 171.8 MB. Max. memory is 16.1 GB. * Witness Printer took 170.66 ms. Allocated memory is still 316.7 MB. Free memory was 92.7 MB in the beginning and 214.8 MB in the end (delta: -122.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 97352, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1773, negative conditional: 1720, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 97116, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1537, negative conditional: 1484, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 97116, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1537, negative conditional: 1484, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 92615, positive unconditional: 2964, negative: 6246, negative conditional: 4709, negative unconditional: 1537, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 31034, positive unconditional: 64545, negative: 6246, negative conditional: 2058, negative unconditional: 4188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 31034, positive unconditional: 64545, negative: 6246, negative conditional: 2058, negative unconditional: 4188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3022, positive: 2932, positive conditional: 63, positive unconditional: 2869, negative: 90, negative conditional: 37, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3022, positive: 2868, positive conditional: 0, positive unconditional: 2868, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, positive: 64, positive conditional: 48, positive unconditional: 16, negative: 90, negative conditional: 37, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 369, positive: 135, positive conditional: 99, positive unconditional: 36, negative: 234, negative conditional: 65, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101825, positive: 92647, positive conditional: 30971, positive unconditional: 61676, negative: 6156, negative conditional: 2021, negative unconditional: 4135, unknown: 3022, unknown conditional: 100, unknown unconditional: 2922] , Statistics on independence cache: Total cache size (in pairs): 3022, Positive cache size: 2932, Positive conditional cache size: 63, Positive unconditional cache size: 2869, Negative cache size: 90, Negative conditional cache size: 37, Negative unconditional cache size: 53, Eliminated conditions: 64232, Maximal queried relation: 5, Independence queries for same thread: 236 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 1172, Number of persistent set computation: 7918, Number of trivial persistent sets: 1932, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2846, positive: 2793, positive conditional: 0, positive unconditional: 2793, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 97352, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1773, negative conditional: 1720, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 97116, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1537, negative conditional: 1484, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 97116, positive: 95579, positive conditional: 92786, positive unconditional: 2793, negative: 1537, negative conditional: 1484, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 92615, positive unconditional: 2964, negative: 6246, negative conditional: 4709, negative unconditional: 1537, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 31034, positive unconditional: 64545, negative: 6246, negative conditional: 2058, negative unconditional: 4188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 101825, positive: 95579, positive conditional: 31034, positive unconditional: 64545, negative: 6246, negative conditional: 2058, negative unconditional: 4188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3022, positive: 2932, positive conditional: 63, positive unconditional: 2869, negative: 90, negative conditional: 37, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3022, positive: 2868, positive conditional: 0, positive unconditional: 2868, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, positive: 64, positive conditional: 48, positive unconditional: 16, negative: 90, negative conditional: 37, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 369, positive: 135, positive conditional: 99, positive unconditional: 36, negative: 234, negative conditional: 65, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101825, positive: 92647, positive conditional: 30971, positive unconditional: 61676, negative: 6156, negative conditional: 2021, negative unconditional: 4135, unknown: 3022, unknown conditional: 100, unknown unconditional: 2922] , Statistics on independence cache: Total cache size (in pairs): 3022, Positive cache size: 2932, Positive conditional cache size: 63, Positive unconditional cache size: 2869, Negative cache size: 90, Negative conditional cache size: 37, Negative unconditional cache size: 53, Eliminated conditions: 64232, Maximal queried relation: 5, Independence queries for same thread: 236 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; VAL [r=0, w=0, x=0, y=0] [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L727] 2 l = x VAL [r=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 2 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; VAL [r=1, w=0, x=0, y=0] [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L753] 0 \read(t1) VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l VAL [r=0, w=0, x=0, y=0] [L745] 2 return 0; VAL [r=0, w=0, x=0, y=0] [L714] CALL 3 __VERIFIER_atomic_take_write_lock() [L706] CALL 3 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 3 !(!cond) [L706] RET 3 assume_abort_if_not(w==0 && r==0) [L707] 3 w = 1 [L714] RET 3 __VERIFIER_atomic_take_write_lock() [L716] 3 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; VAL [r=0, w=1, x=3, y=0] [L738] COND TRUE 4 !(ly == lx) VAL [r=0, w=1, x=3, y=0] [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 135 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 6545.1ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.5ms, PartialOrderReductionTime: 4862.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 45.0ms SsaConstructionTime, 229.9ms SatisfiabilityAnalysisTime, 976.8ms InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 1072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2021-10-24 04:39:25,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-24 04:39:25,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14887ab-891d-43a2-96a1-bb4c6799f296/bin/ugemcutter-s0tUvz4FYp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...