./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3 --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 e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:27:32,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:27:32,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:27:32,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:27:32,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:27:32,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:27:32,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:27:32,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:27:32,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:27:32,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:27:32,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:27:32,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:27:32,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:27:32,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:27:32,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:27:32,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:27:32,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:27:32,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:27:32,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:27:32,394 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:27:32,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:27:32,395 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:27:32,395 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:27:32,395 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:27:32,395 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:27:32,395 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:27:32,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:27:32,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:27:32,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:27:32,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:27:32,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:27:32,396 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:27:32,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:27:32,396 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_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3 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 -> e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 [2024-11-25 02:27:32,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:27:32,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:27:32,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:27:32,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:27:32,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:27:32,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2024-11-25 02:27:35,803 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/data/bf45e1de8/dda9fbe4ecdb447395d66965b7d90995/FLAG10508e693 [2024-11-25 02:27:36,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:27:36,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2024-11-25 02:27:36,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/data/bf45e1de8/dda9fbe4ecdb447395d66965b7d90995/FLAG10508e693 [2024-11-25 02:27:36,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/data/bf45e1de8/dda9fbe4ecdb447395d66965b7d90995 [2024-11-25 02:27:36,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:27:36,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:27:36,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:27:36,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:27:36,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:27:36,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774e2701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36, skipping insertion in model container [2024-11-25 02:27:36,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:27:36,255 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_7684c8f1-2d40-4f44-be1b-7597a855fe98/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-11-25 02:27:36,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:27:36,288 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:27:36,301 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_7684c8f1-2d40-4f44-be1b-7597a855fe98/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-11-25 02:27:36,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:27:36,328 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:27:36,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36 WrapperNode [2024-11-25 02:27:36,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:27:36,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:27:36,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:27:36,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:27:36,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,374 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-25 02:27:36,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:27:36,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:27:36,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:27:36,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:27:36,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,395 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,396 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:27:36,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:27:36,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:27:36,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:27:36,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:27:36,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:27:36,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:27:36,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:27:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:27:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 02:27:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 02:27:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:27:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:27:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:27:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:27:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:27:36,556 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:27:36,558 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:27:36,717 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-25 02:27:36,717 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:27:36,756 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:27:36,757 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 02:27:36,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:27:36 BoogieIcfgContainer [2024-11-25 02:27:36,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:27:36,758 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:27:36,758 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:27:36,769 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:27:36,770 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:27:36" (1/1) ... [2024-11-25 02:27:36,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:27:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-11-25 02:27:36,842 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-11-25 02:27:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 02:27:36,849 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:36,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:27:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:37,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-25 02:27:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-25 02:27:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 02:27:37,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:27:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 30 transitions. [2024-11-25 02:27:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-25 02:27:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 02:27:37,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:37,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:27:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-11-25 02:27:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-25 02:27:37,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 02:27:37,922 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:27:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:38,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-25 02:27:38,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:27:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:27:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 35 states and 53 transitions. [2024-11-25 02:27:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2024-11-25 02:27:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 02:27:38,788 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:38,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-25 02:27:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 35 states and 52 transitions. [2024-11-25 02:27:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2024-11-25 02:27:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 02:27:39,293 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:39,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:27:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:39,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-25 02:27:39,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:27:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 02:27:39,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 37 states and 55 transitions. [2024-11-25 02:27:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-11-25 02:27:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 02:27:39,799 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:39,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:27:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:27:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 20 states and 21 transitions. [2024-11-25 02:27:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-25 02:27:40,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 02:27:40,331 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-11-25 02:27:40,341 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-25 02:27:40,425 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L31(line 31) the Hoare annotation is: (= ~counter~0 0) [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L50(line 50) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L40(lines 40 49) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L40-1(lines 40 49) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L40-3(lines 40 49) the Hoare annotation is: true [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L36-1(lines 36 39) the Hoare annotation is: (<= (+ |ULTIMATE.start_main_#t~post3#1| 1) ~counter~0) [2024-11-25 02:27:40,426 INFO L77 FloydHoareUtils]: At program point L36-2(lines 36 39) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L32(line 32) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L36-4(lines 36 39) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L45-2(lines 40 49) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L41(lines 40 49) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 15 17) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L19-2(lines 18 24) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L20(lines 20 21) the Hoare annotation is: true [2024-11-25 02:27:40,427 INFO L77 FloydHoareUtils]: At program point L19(lines 19 22) the Hoare annotation is: true [2024-11-25 02:27:40,428 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) the Hoare annotation is: true [2024-11-25 02:27:40,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:27:40 ImpRootNode [2024-11-25 02:27:40,451 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:27:40,452 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:27:40,452 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:27:40,452 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:27:40,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:27:36" (3/4) ... [2024-11-25 02:27:40,457 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 02:27:40,461 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-25 02:27:40,461 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-25 02:27:40,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-25 02:27:40,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-25 02:27:40,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 02:27:40,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 02:27:40,562 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:27:40,562 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:27:40,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:27:40,565 INFO L158 Benchmark]: Toolchain (without parser) took 4490.03ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 76.1MB in the end (delta: 17.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-11-25 02:27:40,566 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:27:40,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.60ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 81.9MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:27:40,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.68ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:27:40,568 INFO L158 Benchmark]: Boogie Preprocessor took 35.65ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 80.0MB in the end (delta: 828.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:27:40,568 INFO L158 Benchmark]: RCFGBuilder took 346.25ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 68.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:27:40,568 INFO L158 Benchmark]: CodeCheck took 3693.46ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 80.6MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:27:40,569 INFO L158 Benchmark]: Witness Printer took 110.26ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 76.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:27:40,572 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 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 408 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 231 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 933 GetRequests, 860 SyntacticMatches, 13 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 2 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 19/21 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 21]: 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 - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (counter == \old(counter)) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.60ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 81.9MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.68ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.65ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 80.0MB in the end (delta: 828.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 346.25ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 68.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3693.46ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 80.6MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.26ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 76.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 02:27:40,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7684c8f1-2d40-4f44-be1b-7597a855fe98/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE