./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9 --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 962bf6173fc6078ce41ca1af220429c7629e07f8a02d3d6059bd9727e276c6a2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:13:08,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:13:08,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:13:08,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:13:08,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:13:08,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:13:08,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:13:08,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:13:08,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:13:08,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:13:08,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:13:08,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:13:08,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:13:08,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:13:08,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:13:08,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:13:08,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:13:08,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:13:08,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:13:08,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:13:08,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:13:08,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:13:08,612 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:13:08,612 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:13:08,612 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:13:08,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:13:08,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:13:08,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:13:08,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:13:08,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:13:08,615 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:13:08,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:13:08,616 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:13:08,616 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_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 962bf6173fc6078ce41ca1af220429c7629e07f8a02d3d6059bd9727e276c6a2 [2023-12-03 00:13:08,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:13:08,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:13:08,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:13:08,869 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:13:08,870 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:13:08,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c [2023-12-03 00:13:11,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:13:11,791 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:13:11,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c [2023-12-03 00:13:11,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/data/a8ba1c3c8/fd41bb46c71544ecb963460dcb72cca3/FLAG2a6295a15 [2023-12-03 00:13:11,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/data/a8ba1c3c8/fd41bb46c71544ecb963460dcb72cca3 [2023-12-03 00:13:11,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:13:11,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:13:11,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:13:11,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:13:11,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:13:11,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:13:11" (1/1) ... [2023-12-03 00:13:11,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668aeb5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:11, skipping insertion in model container [2023-12-03 00:13:11,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:13:11" (1/1) ... [2023-12-03 00:13:11,871 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:13:11,999 WARN L240 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_2397596a-26fc-415d-b491-2da3da6138b8/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c[913,926] [2023-12-03 00:13:12,040 WARN L240 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_2397596a-26fc-415d-b491-2da3da6138b8/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c[5994,6007] [2023-12-03 00:13:12,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:13:12,085 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:13:12,095 WARN L240 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_2397596a-26fc-415d-b491-2da3da6138b8/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c[913,926] [2023-12-03 00:13:12,114 WARN L240 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_2397596a-26fc-415d-b491-2da3da6138b8/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.01.cil-1.c[5994,6007] [2023-12-03 00:13:12,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:13:12,152 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:13:12,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12 WrapperNode [2023-12-03 00:13:12,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:13:12,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:13:12,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:13:12,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:13:12,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,208 INFO L138 Inliner]: procedures = 50, calls = 52, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 426 [2023-12-03 00:13:12,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:13:12,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:13:12,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:13:12,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:13:12,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:13:12,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:13:12,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:13:12,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:13:12,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:13:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:13:12,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:13:12,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:13:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:13:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-03 00:13:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-03 00:13:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-03 00:13:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-03 00:13:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-03 00:13:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-03 00:13:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-03 00:13:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-03 00:13:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-03 00:13:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-03 00:13:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-03 00:13:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-03 00:13:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-03 00:13:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-03 00:13:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:13:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-03 00:13:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-03 00:13:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:13:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:13:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-03 00:13:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-03 00:13:12,393 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:13:12,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:13:12,760 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:13:12,910 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:13:12,911 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-03 00:13:12,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:13:12 BoogieIcfgContainer [2023-12-03 00:13:12,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:13:12,913 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:13:12,913 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:13:12,923 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:13:12,924 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:13:12" (1/1) ... [2023-12-03 00:13:12,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:13:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:13:12,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 121 states and 175 transitions. [2023-12-03 00:13:12,978 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 175 transitions. [2023-12-03 00:13:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:13:12,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:13:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:13:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:13:13,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:13:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:13:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:13:13,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:13:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:13:13,204 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 00:13:13,235 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-12-03 00:13:13,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:13:13 ImpRootNode [2023-12-03 00:13:13,245 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:13:13,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:13:13,246 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:13:13,246 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:13:13,247 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:13:12" (3/4) ... [2023-12-03 00:13:13,248 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 00:13:13,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-12-03 00:13:13,311 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:13:13,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:13:13,312 INFO L158 Benchmark]: Toolchain (without parser) took 1491.55ms. Allocated memory is still 159.4MB. Free memory was 123.3MB in the beginning and 87.1MB in the end (delta: 36.2MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,313 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:13:13,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.20ms. Allocated memory is still 159.4MB. Free memory was 123.3MB in the beginning and 107.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.21ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,314 INFO L158 Benchmark]: Boogie Preprocessor took 36.91ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,314 INFO L158 Benchmark]: RCFGBuilder took 665.28ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 109.5MB in the end (delta: -7.4MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,315 INFO L158 Benchmark]: CodeCheck took 332.18ms. Allocated memory is still 159.4MB. Free memory was 109.5MB in the beginning and 91.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,315 INFO L158 Benchmark]: Witness Printer took 65.81ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 87.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:13:13,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 10 procedures, 121 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 27]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int q_buf_0 ; [L33] int q_free ; [L34] int q_read_ev ; [L35] int q_write_ev ; [L36] int p_num_write ; [L37] int p_last_write ; [L38] int p_dw_st ; [L39] int p_dw_pc ; [L40] int p_dw_i ; [L41] int c_num_read ; [L42] int c_last_read ; [L43] int c_dr_st ; [L44] int c_dr_pc ; [L45] int c_dr_i ; [L152] static int a_t ; [L394] int m_pc = 0; [L395] int t1_pc = 0; [L396] int m_st ; [L397] int t1_st ; [L398] int m_i ; [L399] int t1_i ; [L400] int M_E = 2; [L401] int T1_E = 2; [L402] int E_M = 2; [L403] int E_1 = 2; [L407] int token ; [L409] int local ; [L856] COND TRUE __VERIFIER_nondet_int() [L857] CALL main1() [L368] int __retres1 ; [L372] CALL init_model1() [L354] q_free = 1 [L355] q_write_ev = 2 [L356] q_read_ev = q_write_ev [L357] p_num_write = 0 [L358] p_dw_pc = 0 [L359] p_dw_i = 1 [L360] c_num_read = 0 [L361] c_dr_pc = 0 [L362] c_dr_i = 1 [L372] RET init_model1() [L373] CALL start_simulation1() [L322] int kernel_st ; [L323] int tmp ; [L327] kernel_st = 0 [L328] CALL init_threads1() [L214] COND TRUE (int )p_dw_i == 1 [L215] p_dw_st = 0 [L219] COND TRUE (int )c_dr_i == 1 [L220] c_dr_st = 0 [L328] RET init_threads1() [L331] COND TRUE 1 [L334] kernel_st = 1 [L335] CALL eval1() [L249] int tmp ; [L250] int tmp___0 ; [L251] int tmp___1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L255] COND TRUE 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L258] CALL, EXPR exists_runnable_thread1() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L229] int __retres1 ; [L232] COND TRUE (int )p_dw_st == 0 [L233] __retres1 = 1 [L245] return (__retres1); [L258] RET, EXPR exists_runnable_thread1() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L258] tmp___1 = exists_runnable_thread1() [L260] COND TRUE \read(tmp___1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, tmp___1=1, token=0] [L265] COND TRUE (int )p_dw_st == 0 [L267] tmp = __VERIFIER_nondet_int() [L269] COND FALSE !(\read(tmp)) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, tmp=0, tmp___1=1, token=0] [L275] CALL error1() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L27] reach_error() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, token=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.20ms. Allocated memory is still 159.4MB. Free memory was 123.3MB in the beginning and 107.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.21ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.91ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 102.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.28ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 109.5MB in the end (delta: -7.4MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * CodeCheck took 332.18ms. Allocated memory is still 159.4MB. Free memory was 109.5MB in the beginning and 91.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 65.81ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 87.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 00:13:13,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2397596a-26fc-415d-b491-2da3da6138b8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE