./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c72d4b54465b49a8be7d6b67decf7d9407d163e58bb229fc2ca0587a37abb515 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:31:25,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:31:25,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 19:31:25,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:31:25,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:31:25,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:31:25,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:31:25,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:31:25,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:31:25,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:31:25,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:31:25,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:31:25,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:31:25,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:31:25,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:31:25,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:31:25,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:31:25,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:31:25,494 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:31:25,495 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:31:25,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:31:25,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:31:25,496 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:31:25,496 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:31:25,496 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:31:25,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:31:25,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:25,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:31:25,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:31:25,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:31:25,503 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:31:25,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:31:25,503 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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c72d4b54465b49a8be7d6b67decf7d9407d163e58bb229fc2ca0587a37abb515 [2024-11-08 19:31:25,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:31:25,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:31:25,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:31:25,908 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:31:25,908 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:31:25,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-dietlibc/strchr-1.i Unable to find full path for "g++" [2024-11-08 19:31:28,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:31:28,443 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:31:28,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/sv-benchmarks/c/termination-dietlibc/strchr-1.i [2024-11-08 19:31:28,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/472fe6a40/fabd30ff92b24673b975aa2199d953b4/FLAG8f8aa2e03 [2024-11-08 19:31:28,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/472fe6a40/fabd30ff92b24673b975aa2199d953b4 [2024-11-08 19:31:28,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:31:28,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:31:28,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:28,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:31:28,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:31:28,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:28" (1/1) ... [2024-11-08 19:31:28,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ae6eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:28, skipping insertion in model container [2024-11-08 19:31:28,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:28" (1/1) ... [2024-11-08 19:31:28,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:31:29,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:29,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:31:29,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:29,187 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:31:29,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29 WrapperNode [2024-11-08 19:31:29,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:29,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:29,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:31:29,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:31:29,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,250 INFO L138 Inliner]: procedures = 113, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-11-08 19:31:29,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:29,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:31:29,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:31:29,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:31:29,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:31:29,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:31:29,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:31:29,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:31:29,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:29,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:31:29,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:31:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:31:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:31:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:31:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:31:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:31:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:31:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:31:29,506 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:31:29,508 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:31:29,785 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 19:31:29,785 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:31:29,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:31:29,834 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:31:29,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:29 BoogieIcfgContainer [2024-11-08 19:31:29,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:31:29,836 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:31:29,836 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:31:29,849 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:31:29,850 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:29" (1/1) ... [2024-11-08 19:31:29,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:31:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2024-11-08 19:31:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2024-11-08 19:31:29,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 19:31:29,955 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:29,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:31:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2024-11-08 19:31:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2024-11-08 19:31:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 19:31:30,260 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:30,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:31:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:30,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2024-11-08 19:31:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2024-11-08 19:31:30,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:31:30,476 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2024-11-08 19:31:30,491 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 19:31:30,541 INFO L77 FloydHoareUtils]: At program point L510(line 510) the Hoare annotation is: true [2024-11-08 19:31:30,541 INFO L77 FloydHoareUtils]: At program point L510-2(line 510) the Hoare annotation is: true [2024-11-08 19:31:30,541 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 517 524) the Hoare annotation is: true [2024-11-08 19:31:30,545 INFO L77 FloydHoareUtils]: At program point L519(line 519) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2024-11-08 19:31:30,545 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2024-11-08 19:31:30,546 INFO L77 FloydHoareUtils]: At program point L511(line 511) the Hoare annotation is: true [2024-11-08 19:31:30,546 INFO L77 FloydHoareUtils]: At program point L511-2(line 511) the Hoare annotation is: true [2024-11-08 19:31:30,546 INFO L77 FloydHoareUtils]: At program point strchr_returnLabel#1(lines 506 516) the Hoare annotation is: true [2024-11-08 19:31:30,546 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2024-11-08 19:31:30,547 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:31:30,547 INFO L77 FloydHoareUtils]: At program point L512(line 512) the Hoare annotation is: true [2024-11-08 19:31:30,548 INFO L77 FloydHoareUtils]: At program point L512-2(line 512) the Hoare annotation is: true [2024-11-08 19:31:30,548 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:31:30,548 INFO L77 FloydHoareUtils]: At program point L521(line 521) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~in_len~0#1|)) [2024-11-08 19:31:30,548 INFO L77 FloydHoareUtils]: At program point L521-1(line 521) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2024-11-08 19:31:30,549 INFO L77 FloydHoareUtils]: At program point L513(line 513) the Hoare annotation is: true [2024-11-08 19:31:30,550 INFO L77 FloydHoareUtils]: At program point L513-2(line 513) the Hoare annotation is: true [2024-11-08 19:31:30,550 INFO L77 FloydHoareUtils]: At program point L509-2(lines 509 514) the Hoare annotation is: true [2024-11-08 19:31:30,550 INFO L77 FloydHoareUtils]: At program point L509-3(lines 509 514) the Hoare annotation is: true [2024-11-08 19:31:30,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:31:30 ImpRootNode [2024-11-08 19:31:30,563 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:31:30,564 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:31:30,564 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:31:30,565 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:31:30,565 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:29" (3/4) ... [2024-11-08 19:31:30,568 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:31:30,580 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-08 19:31:30,580 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 19:31:30,580 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 19:31:30,582 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:31:30,621 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 19:31:30,624 INFO L158 Benchmark]: Toolchain (without parser) took 2139.39ms. Allocated memory is still 136.3MB. Free memory was 100.5MB in the beginning and 59.4MB in the end (delta: 41.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,625 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:31:30,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.27ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 99.9MB in the end (delta: 286.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.44ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,627 INFO L158 Benchmark]: Boogie Preprocessor took 51.71ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 96.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,627 INFO L158 Benchmark]: RCFGBuilder took 529.05ms. Allocated memory is still 136.3MB. Free memory was 96.1MB in the beginning and 82.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,628 INFO L158 Benchmark]: CodeCheck took 727.74ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 61.9MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,629 INFO L158 Benchmark]: Witness Printer took 58.99ms. Allocated memory is still 136.3MB. Free memory was 61.9MB in the beginning and 59.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:30,634 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 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 4 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.27ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 99.9MB in the end (delta: 286.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.44ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.71ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 96.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.05ms. Allocated memory is still 136.3MB. Free memory was 96.1MB in the beginning and 82.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 727.74ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 61.9MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 58.99ms. Allocated memory is still 136.3MB. Free memory was 61.9MB in the beginning and 59.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 19:31:30,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c72d4b54465b49a8be7d6b67decf7d9407d163e58bb229fc2ca0587a37abb515 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:31:33,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:31:33,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 19:31:33,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:31:33,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:31:33,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:31:33,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:31:33,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:31:33,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:31:33,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:31:33,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:31:33,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:31:33,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:31:33,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:31:33,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:31:33,752 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:31:33,753 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:31:33,753 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:31:33,753 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:31:33,754 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:31:33,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:31:33,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:31:33,756 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:31:33,756 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:31:33,756 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:31:33,757 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:31:33,757 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 19:31:33,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:31:33,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:33,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:31:33,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:31:33,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:31:33,760 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 19:31:33,760 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:31:33,761 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 19:31:33,761 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_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c72d4b54465b49a8be7d6b67decf7d9407d163e58bb229fc2ca0587a37abb515 [2024-11-08 19:31:34,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:31:34,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:31:34,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:31:34,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:31:34,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:31:34,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-dietlibc/strchr-1.i Unable to find full path for "g++" [2024-11-08 19:31:36,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:31:36,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:31:36,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/sv-benchmarks/c/termination-dietlibc/strchr-1.i [2024-11-08 19:31:36,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/38970965b/d201e9326d534c6385cf162439f3ffad/FLAGd72b0ae20 [2024-11-08 19:31:37,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/data/38970965b/d201e9326d534c6385cf162439f3ffad [2024-11-08 19:31:37,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:31:37,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:31:37,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:37,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:31:37,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:31:37,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f5268f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37, skipping insertion in model container [2024-11-08 19:31:37,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:31:37,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:37,724 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:31:37,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:37,850 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:31:37,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37 WrapperNode [2024-11-08 19:31:37,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:37,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:37,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:31:37,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:31:37,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,921 INFO L138 Inliner]: procedures = 114, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2024-11-08 19:31:37,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:37,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:31:37,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:31:37,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:31:37,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:31:37,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:31:37,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:31:37,972 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:31:37,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:37" (1/1) ... [2024-11-08 19:31:37,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:38,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:31:38,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:31:38,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:31:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-08 19:31:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:31:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-08 19:31:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:31:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:31:38,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:31:38,178 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:31:38,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:31:38,445 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 19:31:38,445 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:31:38,478 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:31:38,479 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:31:38,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:38 BoogieIcfgContainer [2024-11-08 19:31:38,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:31:38,481 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:31:38,481 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:31:38,500 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:31:38,500 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:38" (1/1) ... [2024-11-08 19:31:38,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:31:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2024-11-08 19:31:38,559 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2024-11-08 19:31:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 19:31:38,563 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:38,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:31:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:31:38,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:31:38,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 19:31:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:38,665 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 19:31:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:38,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:31:38,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:31:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:31:38,745 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 19:31:38,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 19:31:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:38,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2024-11-08 19:31:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2024-11-08 19:31:38,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 19:31:38,809 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:38,809 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:31:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:31:38,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:31:38,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 19:31:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:38,910 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 19:31:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:38,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:31:38,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:31:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:31:38,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 19:31:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2024-11-08 19:31:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2024-11-08 19:31:38,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:31:38,941 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2024-11-08 19:31:38,951 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 19:31:38,983 INFO L77 FloydHoareUtils]: At program point L510(line 510) the Hoare annotation is: true [2024-11-08 19:31:38,984 INFO L77 FloydHoareUtils]: At program point L510-2(line 510) the Hoare annotation is: true [2024-11-08 19:31:38,984 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 517 524) the Hoare annotation is: true [2024-11-08 19:31:38,984 INFO L77 FloydHoareUtils]: At program point L519(line 519) the Hoare annotation is: true [2024-11-08 19:31:38,985 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2024-11-08 19:31:38,985 INFO L77 FloydHoareUtils]: At program point L511(line 511) the Hoare annotation is: true [2024-11-08 19:31:38,985 INFO L77 FloydHoareUtils]: At program point L511-2(line 511) the Hoare annotation is: true [2024-11-08 19:31:38,986 INFO L77 FloydHoareUtils]: At program point strchr_returnLabel#1(lines 506 516) the Hoare annotation is: true [2024-11-08 19:31:38,986 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2024-11-08 19:31:38,986 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:31:38,986 INFO L77 FloydHoareUtils]: At program point L512(line 512) the Hoare annotation is: true [2024-11-08 19:31:38,986 INFO L77 FloydHoareUtils]: At program point L512-2(line 512) the Hoare annotation is: true [2024-11-08 19:31:38,987 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:31:38,987 INFO L77 FloydHoareUtils]: At program point L521(line 521) the Hoare annotation is: (not (bvslt |ULTIMATE.start_main_~in_len~0#1| (_ bv1 32))) [2024-11-08 19:31:38,987 INFO L77 FloydHoareUtils]: At program point L521-1(line 521) the Hoare annotation is: true [2024-11-08 19:31:38,987 INFO L77 FloydHoareUtils]: At program point L513(line 513) the Hoare annotation is: true [2024-11-08 19:31:38,987 INFO L77 FloydHoareUtils]: At program point L513-2(line 513) the Hoare annotation is: true [2024-11-08 19:31:38,988 INFO L77 FloydHoareUtils]: At program point L509-2(lines 509 514) the Hoare annotation is: true [2024-11-08 19:31:38,988 INFO L77 FloydHoareUtils]: At program point L509-3(lines 509 514) the Hoare annotation is: true [2024-11-08 19:31:38,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:31:38 ImpRootNode [2024-11-08 19:31:38,997 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:31:38,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:31:38,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:31:38,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:31:39,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:38" (3/4) ... [2024-11-08 19:31:39,004 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:31:39,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 19:31:39,017 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 19:31:39,017 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 19:31:39,017 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:31:39,060 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 19:31:39,065 INFO L158 Benchmark]: Toolchain (without parser) took 2040.79ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 44.1MB in the beginning and 65.5MB in the end (delta: -21.4MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,065 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:31:39,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.78ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 44.0MB in the beginning and 75.4MB in the end (delta: -31.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.52ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,071 INFO L158 Benchmark]: Boogie Preprocessor took 45.23ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,075 INFO L158 Benchmark]: RCFGBuilder took 508.55ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 57.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,076 INFO L158 Benchmark]: CodeCheck took 516.95ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 68.1MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:31:39,076 INFO L158 Benchmark]: Witness Printer took 65.34ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 65.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:31:39,079 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 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.78ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 44.0MB in the beginning and 75.4MB in the end (delta: -31.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.52ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.23ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.55ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 57.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 516.95ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 68.1MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.34ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 65.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 19:31:39,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01d1c170-d7d2-46b2-b164-3ad3699ebb6d/bin/ukojak-verify-ImItNfHLgk/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 Result: ERROR: ExceptionOrErrorResult: NullPointerException: null