./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/trex01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/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 fcd99b2df0924887988cb47edc94be4a868bdcbcd74e734872c50b1f1ade5738 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:43:36,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:43:36,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:43:36,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:43:36,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:43:36,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:43:36,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:43:36,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:43:36,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:43:36,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:43:36,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:43:36,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:43:36,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:43:36,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:43:36,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:43:36,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:43:36,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:43:36,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:43:36,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:43:36,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:43:36,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:43:36,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:43:36,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:43:36,428 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:43:36,428 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:43:36,428 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:43:36,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:43:36,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:43:36,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:43:36,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:43:36,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:43:36,435 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:43:36,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:43:36,435 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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd99b2df0924887988cb47edc94be4a868bdcbcd74e734872c50b1f1ade5738 [2024-11-08 19:43:36,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:43:36,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:43:36,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:43:36,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:43:36,812 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:43:36,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loops/trex01-2.i Unable to find full path for "g++" [2024-11-08 19:43:38,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:43:38,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:43:38,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/sv-benchmarks/c/loops/trex01-2.i [2024-11-08 19:43:38,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/data/56737ea85/a5cd07d3c7cd4fe3909dafa9682d9076/FLAG006d216fa [2024-11-08 19:43:39,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/data/56737ea85/a5cd07d3c7cd4fe3909dafa9682d9076 [2024-11-08 19:43:39,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:43:39,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:43:39,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:43:39,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:43:39,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:43:39,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7061a9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39, skipping insertion in model container [2024-11-08 19:43:39,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:43:39,271 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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/sv-benchmarks/c/loops/trex01-2.i[895,908] [2024-11-08 19:43:39,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:43:39,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:43:39,323 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_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/sv-benchmarks/c/loops/trex01-2.i[895,908] [2024-11-08 19:43:39,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:43:39,356 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:43:39,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39 WrapperNode [2024-11-08 19:43:39,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:43:39,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:43:39,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:43:39,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:43:39,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,393 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2024-11-08 19:43:39,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:43:39,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:43:39,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:43:39,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:43:39,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:43:39,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:43:39,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:43:39,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:43:39,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:43:39,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:43:39,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:43:39,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:43:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:43:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 19:43:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 19:43:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:43:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:43:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:43:39,586 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:43:39,588 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:43:39,762 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 19:43:39,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:43:39,822 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:43:39,823 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:43:39,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:39 BoogieIcfgContainer [2024-11-08 19:43:39,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:43:39,825 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:43:39,825 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:43:39,841 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:43:39,841 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:39" (1/1) ... [2024-11-08 19:43:39,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:43:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-11-08 19:43:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-11-08 19:43:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 19:43:39,901 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:39,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:40,261 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 19:43:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2024-11-08 19:43:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-11-08 19:43:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 19:43:40,344 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:40,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:40,433 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 19:43:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2024-11-08 19:43:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2024-11-08 19:43:40,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:43:40,489 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:40,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:43:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-08 19:43:40,887 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-08 19:43:40,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 19:43:40,888 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:43:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:43:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:43:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:43:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:43:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-08 19:43:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-08 19:43:41,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:43:41,195 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-11-08 19:43:41,205 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 19:43:41,291 INFO L75 FloydHoareUtils]: For program point fErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2024-11-08 19:43:41,292 INFO L77 FloydHoareUtils]: At program point L27(lines 27 29) the Hoare annotation is: (= |f_~z~0#1| 1) [2024-11-08 19:43:41,292 INFO L75 FloydHoareUtils]: For program point L19(line 19) no Hoare annotation was computed. [2024-11-08 19:43:41,292 INFO L77 FloydHoareUtils]: At program point fEXIT(lines 25 47) the Hoare annotation is: true [2024-11-08 19:43:41,293 INFO L77 FloydHoareUtils]: At program point L36-1(lines 36 46) the Hoare annotation is: true [2024-11-08 19:43:41,293 INFO L77 FloydHoareUtils]: At program point L36-3(lines 36 46) the Hoare annotation is: true [2024-11-08 19:43:41,293 INFO L77 FloydHoareUtils]: At program point L32(lines 32 33) the Hoare annotation is: true [2024-11-08 19:43:41,293 INFO L77 FloydHoareUtils]: At program point L36-4(lines 25 47) the Hoare annotation is: true [2024-11-08 19:43:41,293 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 25 47) the Hoare annotation is: true [2024-11-08 19:43:41,294 INFO L77 FloydHoareUtils]: At program point L34(line 34) the Hoare annotation is: true [2024-11-08 19:43:41,294 INFO L77 FloydHoareUtils]: At program point L30-1(line 30) the Hoare annotation is: (let ((.cse0 (< |f_~z~0#1| |f_~k~0#1|))) (or (and (= |f_~z~0#1| 1) .cse0) (and (<= 2 |f_~z~0#1|) .cse0))) [2024-11-08 19:43:41,294 INFO L77 FloydHoareUtils]: At program point L30-3(line 30) the Hoare annotation is: (< 0 |f_~z~0#1|) [2024-11-08 19:43:41,294 INFO L77 FloydHoareUtils]: At program point L30-4(line 30) the Hoare annotation is: (< 0 |f_~z~0#1|) [2024-11-08 19:43:41,295 INFO L77 FloydHoareUtils]: At program point L18(lines 18 20) the Hoare annotation is: (not (= |f___VERIFIER_assert_~cond#1| 0)) [2024-11-08 19:43:41,295 INFO L77 FloydHoareUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2024-11-08 19:43:41,295 INFO L77 FloydHoareUtils]: At program point L35(line 35) the Hoare annotation is: true [2024-11-08 19:43:41,295 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:43:41,295 INFO L77 FloydHoareUtils]: At program point L53(line 53) the Hoare annotation is: true [2024-11-08 19:43:41,296 INFO L77 FloydHoareUtils]: At program point L53-1(lines 50 54) the Hoare annotation is: true [2024-11-08 19:43:41,296 INFO L77 FloydHoareUtils]: At program point L51(line 51) the Hoare annotation is: true [2024-11-08 19:43:41,296 INFO L77 FloydHoareUtils]: At program point L50(lines 50 54) the Hoare annotation is: true [2024-11-08 19:43:41,296 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:43:41,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:43:41 ImpRootNode [2024-11-08 19:43:41,317 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:43:41,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:43:41,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:43:41,320 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:43:41,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:43:39" (3/4) ... [2024-11-08 19:43:41,324 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:43:41,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2024-11-08 19:43:41,335 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-08 19:43:41,337 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 19:43:41,337 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 19:43:41,337 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:43:41,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:43:41,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 19:43:41,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:43:41,432 INFO L158 Benchmark]: Toolchain (without parser) took 2425.48ms. Allocated memory is still 157.3MB. Free memory was 124.9MB in the beginning and 74.2MB in the end (delta: 50.7MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,432 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:43:41,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.21ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 111.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.43ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 110.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,434 INFO L158 Benchmark]: Boogie Preprocessor took 36.36ms. Allocated memory is still 157.3MB. Free memory was 110.3MB in the beginning and 109.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:43:41,435 INFO L158 Benchmark]: RCFGBuilder took 390.61ms. Allocated memory is still 157.3MB. Free memory was 109.1MB in the beginning and 94.8MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,439 INFO L158 Benchmark]: CodeCheck took 1492.26ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 78.4MB in the end (delta: 16.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,440 INFO L158 Benchmark]: Witness Printer took 113.79ms. Allocated memory is still 157.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:43:41,442 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 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 48 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 300 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/5 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (0 < z) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 119.5MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.21ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 111.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.43ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 110.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.36ms. Allocated memory is still 157.3MB. Free memory was 110.3MB in the beginning and 109.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.61ms. Allocated memory is still 157.3MB. Free memory was 109.1MB in the beginning and 94.8MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1492.26ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 78.4MB in the end (delta: 16.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Witness Printer took 113.79ms. Allocated memory is still 157.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 19:43:41,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4ef4bd-b0e4-4ba1-8bbc-f4bf8a8c476d/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 Writing output log to file Ultimate.log Result: TRUE