./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:39:13,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:39:13,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:39:13,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:39:13,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:39:13,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:39:13,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:39:13,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:39:13,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:39:13,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:39:13,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:39:13,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:39:13,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:39:13,211 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:39:13,211 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:39:13,212 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:39:13,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:39:13,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:39:13,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:39:13,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:39:13,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:39:13,212 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:39:13,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:39:13,213 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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/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 -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2024-11-13 16:39:13,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:39:13,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:39:13,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:39:13,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:39:13,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:39:13,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/verifythis/elimination_max_rec.c Unable to find full path for "g++" [2024-11-13 16:39:15,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:39:15,821 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:39:15,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-11-13 16:39:15,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/data/2be13aa28/5e8215656dcd48339931f2f00284741d/FLAGca4dac652 [2024-11-13 16:39:16,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/data/2be13aa28/5e8215656dcd48339931f2f00284741d [2024-11-13 16:39:16,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:39:16,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:39:16,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:39:16,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:39:16,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:39:16,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325e910f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16, skipping insertion in model container [2024-11-13 16:39:16,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:39:16,363 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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-11-13 16:39:16,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:39:16,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:39:16,440 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_26fc43b1-4752-4d9c-8d3a-1d974e26b720/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-11-13 16:39:16,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:39:16,483 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:39:16,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16 WrapperNode [2024-11-13 16:39:16,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:39:16,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:39:16,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:39:16,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:39:16,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,536 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-13 16:39:16,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:39:16,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:39:16,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:39:16,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:39:16,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:39:16,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:39:16,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:39:16,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:39:16,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:39:16" (1/1) ... [2024-11-13 16:39:16,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:39:16,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:39:16,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:39:16,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:39:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:39:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:39:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:39:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:39:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-11-13 16:39:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-11-13 16:39:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:39:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:39:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:39:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:39:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:39:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:39:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:39:16,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:39:16,811 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:39:17,029 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 16:39:17,029 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:39:17,097 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:39:17,097 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:39:17,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:39:17 BoogieIcfgContainer [2024-11-13 16:39:17,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:39:17,099 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:39:17,099 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:39:17,114 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:39:17,114 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:39:17" (1/1) ... [2024-11-13 16:39:17,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:39:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-13 16:39:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-13 16:39:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:39:17,220 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:17,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:17,910 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 16:39:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-11-13 16:39:18,169 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-13 16:39:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:39:18,172 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:18,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:19,207 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 16:39:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 52 transitions. [2024-11-13 16:39:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-13 16:39:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 16:39:20,084 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:39:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 68 transitions. [2024-11-13 16:39:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-13 16:39:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 16:39:21,470 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:39:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 75 transitions. [2024-11-13 16:39:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2024-11-13 16:39:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 16:39:23,396 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:39:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-13 16:39:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:39:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 28 states and 33 transitions. [2024-11-13 16:39:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-13 16:39:24,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:39:24,474 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-13 16:39:24,492 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 16:39:24,602 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 16:39:24,604 INFO L77 FloydHoareUtils]: At program point L46(line 46) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-11-13 16:39:24,604 INFO L77 FloydHoareUtils]: At program point L46-1(line 46) the Hoare annotation is: true [2024-11-13 16:39:24,604 INFO L77 FloydHoareUtils]: At program point L44(line 44) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point L44-1(line 44) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: true [2024-11-13 16:39:24,605 INFO L77 FloydHoareUtils]: At program point L25-2(lines 25 26) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point checkEXIT(lines 16 39) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 39) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point checkFINAL(lines 16 39) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point L36(line 36) the Hoare annotation is: true [2024-11-13 16:39:24,608 INFO L77 FloydHoareUtils]: At program point L36-1(line 36) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-11-13 16:39:24,609 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-11-13 16:39:24,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:39:24 ImpRootNode [2024-11-13 16:39:24,631 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:39:24,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:39:24,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:39:24,633 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:39:24,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:39:17" (3/4) ... [2024-11-13 16:39:24,637 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:39:24,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 16:39:24,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-11-13 16:39:24,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 16:39:24,649 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-13 16:39:24,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 16:39:24,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 16:39:24,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:39:24,748 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:39:24,748 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 16:39:24,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:39:24,750 INFO L158 Benchmark]: Toolchain (without parser) took 8660.17ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 91.6MB in the beginning and 70.9MB in the end (delta: 20.7MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,750 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:39:24,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.12ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.11ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.5MB in the end (delta: 962.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:39:24,751 INFO L158 Benchmark]: Boogie Preprocessor took 49.11ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 999.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,752 INFO L158 Benchmark]: RCFGBuilder took 508.96ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 64.3MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,752 INFO L158 Benchmark]: CodeCheck took 7532.68ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 64.3MB in the beginning and 74.6MB in the end (delta: -10.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,753 INFO L158 Benchmark]: Witness Printer took 116.27ms. Allocated memory is still 151.0MB. Free memory was 74.6MB in the beginning and 70.9MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:39:24,755 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 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 505 IncrementalHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 125 mSDtfsCounter, 505 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 960 SyntacticMatches, 17 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1316 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 49/71 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: 11]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.12ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.11ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.5MB in the end (delta: 962.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.11ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 999.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 508.96ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 64.3MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 7532.68ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 64.3MB in the beginning and 74.6MB in the end (delta: -10.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 116.27ms. Allocated memory is still 151.0MB. Free memory was 74.6MB in the beginning and 70.9MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 16:39:24,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26fc43b1-4752-4d9c-8d3a-1d974e26b720/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 Result: TRUE