./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label07.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_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/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_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/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_ac00946d-0f61-403c-a00b-c0421e2fe32c/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 a8cf6243f0ab4090e55b0c0c5f0ae4cf837fa81bc993d776b406c2b0dbd3865c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:45:45,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:45:45,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:45:45,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:45:45,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:45:45,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:45:45,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:45:45,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:45:45,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:45:45,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:45:45,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:45:45,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:45:45,269 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:45:45,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:45:45,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:45:45,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:45:45,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:45:45,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:45:45,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:45:45,272 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:45:45,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:45:45,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:45:45,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:45:45,281 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:45:45,281 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:45:45,281 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:45:45,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:45:45,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:45:45,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:45:45,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:45:45,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:45:45,284 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:45:45,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:45:45,284 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_ac00946d-0f61-403c-a00b-c0421e2fe32c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8cf6243f0ab4090e55b0c0c5f0ae4cf837fa81bc993d776b406c2b0dbd3865c [2024-11-09 00:45:45,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:45:45,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:45:45,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:45:45,668 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:45:45,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:45:45,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/eca-rers2012/Problem16_label07.c Unable to find full path for "g++" [2024-11-09 00:45:47,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:45:48,169 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:45:48,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/sv-benchmarks/c/eca-rers2012/Problem16_label07.c [2024-11-09 00:45:48,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/data/56f813fa9/15cb582f20dc4e2f9c75c6e57b16f06a/FLAG109327347 [2024-11-09 00:45:48,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/data/56f813fa9/15cb582f20dc4e2f9c75c6e57b16f06a [2024-11-09 00:45:48,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:45:48,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:45:48,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:45:48,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:45:48,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:45:48,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:45:48" (1/1) ... [2024-11-09 00:45:48,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e8a7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:48, skipping insertion in model container [2024-11-09 00:45:48,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:45:48" (1/1) ... [2024-11-09 00:45:48,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:45:48,748 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_ac00946d-0f61-403c-a00b-c0421e2fe32c/sv-benchmarks/c/eca-rers2012/Problem16_label07.c[5709,5722] [2024-11-09 00:45:49,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:45:49,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:45:49,501 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_ac00946d-0f61-403c-a00b-c0421e2fe32c/sv-benchmarks/c/eca-rers2012/Problem16_label07.c[5709,5722] [2024-11-09 00:45:49,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:45:49,799 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:45:49,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49 WrapperNode [2024-11-09 00:45:49,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:45:49,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:45:49,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:45:49,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:45:49,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:49,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:49,995 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-09 00:45:49,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:45:49,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:45:49,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:45:49,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:45:50,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:45:50,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:45:50,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:45:50,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:45:50,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:45:49" (1/1) ... [2024-11-09 00:45:50,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:45:50,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:45:50,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:45:50,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac00946d-0f61-403c-a00b-c0421e2fe32c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:45:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:45:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:45:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:45:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:45:50,446 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:45:50,450 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:45:53,519 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-09 00:45:53,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:46:15,546 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:46:15,546 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:46:15,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:46:15 BoogieIcfgContainer [2024-11-09 00:46:15,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:46:15,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:46:15,549 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:46:15,561 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:46:15,561 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:46:15" (1/1) ... [2024-11-09 00:46:15,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:46:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:46:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-09 00:46:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-09 00:46:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:46:15,640 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:46:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:46:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:46:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:46:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:46:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-09 00:46:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-09 00:46:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:46:16,270 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:46:16,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:46:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat