./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:50:50,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:50:50,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:50:50,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:50:50,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:50:50,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:50:50,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:50:50,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:50:50,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:50:50,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:50:50,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:50:50,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:50:50,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:50:50,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:50:50,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:50:50,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:50:50,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:50:50,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:50:50,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:50:50,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:50:50,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:50:50,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:50:50,186 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:50:50,187 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:50:50,187 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:50:50,187 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:50:50,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:50:50,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:50,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:50:50,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:50:50,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:50:50,192 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:50:50,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:50:50,193 INFO L153 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_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 [2024-11-08 22:50:50,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:50:50,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:50:50,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:50:50,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:50:50,523 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:50:50,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c Unable to find full path for "g++" [2024-11-08 22:50:52,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:50:52,787 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:50:52,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2024-11-08 22:50:52,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/data/ff3a67ae5/e544a9edae1843338c30d23fb655d490/FLAG59911b46b [2024-11-08 22:50:52,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/data/ff3a67ae5/e544a9edae1843338c30d23fb655d490 [2024-11-08 22:50:52,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:50:52,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:50:52,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:52,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:50:52,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:50:52,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:52" (1/1) ... [2024-11-08 22:50:52,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d1858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:52, skipping insertion in model container [2024-11-08 22:50:52,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:52" (1/1) ... [2024-11-08 22:50:52,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:50:53,145 WARN L250 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_72bbce81-eea9-47be-bb42-9fd4b21cdd51/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-08 22:50:53,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:53,186 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:50:53,248 WARN L250 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_72bbce81-eea9-47be-bb42-9fd4b21cdd51/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-08 22:50:53,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:53,280 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:50:53,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53 WrapperNode [2024-11-08 22:50:53,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:53,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:53,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:50:53,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:50:53,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,338 INFO L138 Inliner]: procedures = 24, calls = 48, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 91 [2024-11-08 22:50:53,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:53,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:50:53,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:50:53,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:50:53,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:50:53,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:50:53,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:50:53,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:50:53,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:53" (1/1) ... [2024-11-08 22:50:53,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:53,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:50:53,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:50:53,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72bbce81-eea9-47be-bb42-9fd4b21cdd51/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:50:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:50:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 22:50:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 22:50:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 22:50:53,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 22:50:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 22:50:53,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 22:50:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:50:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:50:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:50:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:50:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2024-11-08 22:50:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2024-11-08 22:50:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 22:50:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 22:50:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:50:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:50:53,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:50:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:50:53,493 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 22:50:53,631 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:50:53,633 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:50:54,016 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 22:50:54,016 INFO L287 CfgBuilder]: Performing block encoding