./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm --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 d0e99b579c23cc22a276a70c2363ed9ed20405eb8e4be0ab38c77cda92397cf4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:48:11,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:48:11,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:48:11,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:48:12,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:48:12,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:48:12,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:48:12,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:48:12,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:48:12,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:48:12,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:48:12,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:48:12,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:48:12,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:48:12,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:48:12,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:48:12,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:48:12,028 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:48:12,028 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:48:12,028 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:48:12,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:48:12,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:48:12,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm 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 -> d0e99b579c23cc22a276a70c2363ed9ed20405eb8e4be0ab38c77cda92397cf4 [2024-11-13 16:48:12,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:48:12,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:48:12,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:48:12,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:48:12,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:48:12,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c Unable to find full path for "g++" [2024-11-13 16:48:14,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:48:14,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:48:14,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c [2024-11-13 16:48:14,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/data/fdd5ca470/e7c66e29be444da18a4c410cbc244d06/FLAG9a921eb50 [2024-11-13 16:48:15,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/data/fdd5ca470/e7c66e29be444da18a4c410cbc244d06 [2024-11-13 16:48:15,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:48:15,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:48:15,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:48:15,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:48:15,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:48:15,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633ddffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15, skipping insertion in model container [2024-11-13 16:48:15,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:48:15,485 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_07bffc3b-f5c0-4a14-89bd-c2d884089b65/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c[458,471] [2024-11-13 16:48:15,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:48:15,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:48:15,531 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_07bffc3b-f5c0-4a14-89bd-c2d884089b65/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound2.c[458,471] [2024-11-13 16:48:15,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:48:15,558 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:48:15,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15 WrapperNode [2024-11-13 16:48:15,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:48:15,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:48:15,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:48:15,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:48:15,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,596 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-13 16:48:15,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:48:15,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:48:15,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:48:15,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:48:15,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:48:15,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:48:15,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:48:15,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:48:15,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:48:15,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:48:15,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:48:15,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:48:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:48:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:48:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:48:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:48:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:48:15,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:48:15,772 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:48:15,774 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:48:15,931 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 16:48:15,932 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:48:15,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:48:15,963 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:48:15,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:48:15 BoogieIcfgContainer [2024-11-13 16:48:15,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:48:15,965 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:48:15,965 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:48:15,978 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:48:15,978 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:48:15" (1/1) ... [2024-11-13 16:48:15,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:48:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-11-13 16:48:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-11-13 16:48:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:48:16,062 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:16,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-11-13 16:48:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-13 16:48:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:48:16,237 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-11-13 16:48:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-13 16:48:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:48:16,444 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:16,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:48:16,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-11-13 16:48:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-11-13 16:48:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:48:17,193 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:17,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:17,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:48:17,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2024-11-13 16:48:17,497 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2024-11-13 16:48:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:48:17,498 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:17,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2024-11-13 16:48:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2024-11-13 16:48:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:48:18,656 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:18,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:18,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:48:18,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:19,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 32 states and 55 transitions. [2024-11-13 16:48:19,574 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 55 transitions. [2024-11-13 16:48:19,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:48:19,574 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:19,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:19,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:48:19,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:48:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2024-11-13 16:48:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2024-11-13 16:48:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:48:20,130 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:20,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:48:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2024-11-13 16:48:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2024-11-13 16:48:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:48:21,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:21,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:21,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 16:48:21,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:48:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2024-11-13 16:48:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2024-11-13 16:48:23,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:48:23,893 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:23,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:23,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 16:48:23,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:48:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:48:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 46 states and 81 transitions. [2024-11-13 16:48:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 81 transitions. [2024-11-13 16:48:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 16:48:24,706 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:24,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:48:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:48:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:48:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 90 transitions. [2024-11-13 16:48:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 90 transitions. [2024-11-13 16:48:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 16:48:26,542 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:48:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:48:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:48:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:48:26,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:48:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:48:26,643 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2024-11-13 16:48:26,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:48:26 ImpRootNode [2024-11-13 16:48:26,691 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:48:26,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:48:26,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:48:26,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:48:26,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:48:15" (3/4) ... [2024-11-13 16:48:26,694 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:48:26,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:48:26,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:48:26,739 INFO L158 Benchmark]: Toolchain (without parser) took 11482.60ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 43.9MB in the end (delta: 48.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2024-11-13 16:48:26,740 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:48:26,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.06ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:48:26,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:48:26,741 INFO L158 Benchmark]: Boogie Preprocessor took 20.78ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.5MB in the end (delta: 418.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:48:26,741 INFO L158 Benchmark]: RCFGBuilder took 345.34ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 68.9MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:48:26,742 INFO L158 Benchmark]: CodeCheck took 10726.34ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 46.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-13 16:48:26,742 INFO L158 Benchmark]: Witness Printer took 46.75ms. Allocated memory is still 117.4MB. Free memory was 46.1MB in the beginning and 43.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:48:26,745 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 432 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 310 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1319 IncrementalHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 224 mSDtfsCounter, 1319 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1562 GetRequests, 1378 SyntacticMatches, 32 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9935 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 530 SizeOfPredicates, 6 NumberOfNonLiveVariables, 384 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 41/66 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L23] y = 0 [L24] x = 0 [L25] c = 0 VAL [c=0, counter=0, k=3, x=0, y=0] [L27] EXPR counter++ VAL [c=0, counter=1, k=3, x=0, y=0] [L27] COND TRUE counter++<2 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=0, counter=1, k=3, x=0, y=0] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=1, counter=1, k=3, x=1, y=1] [L27] EXPR counter++ VAL [c=1, counter=2, k=3, x=1, y=1] [L27] COND TRUE counter++<2 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=1, counter=2, k=3, x=1, y=1] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=2, counter=2, k=3, x=9, y=2] [L27] EXPR counter++ VAL [c=2, counter=3, k=3, x=9, y=2] [L27] COND FALSE !(counter++<2) [L37] CALL __VERIFIER_assert(k*y - (y*y) == 0) VAL [\old(cond)=0, counter=3] [L10] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L12] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.06ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.78ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.5MB in the end (delta: 418.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.34ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 68.9MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 10726.34ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 46.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Witness Printer took 46.75ms. Allocated memory is still 117.4MB. Free memory was 46.1MB in the beginning and 43.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:48:26,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bffc3b-f5c0-4a14-89bd-c2d884089b65/bin/ukojak-verify-EEHR8qb7sm/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE