./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_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b --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 [2024-12-06 02:17:20,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:17:20,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:17:20,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:17:20,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:17:20,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:17:20,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:17:20,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:17:20,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:17:20,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:17:20,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:17:20,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:17:20,294 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:17:20,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:17:20,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:17:20,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:17:20,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:17:20,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:17:20,295 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:17:20,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:17:20,295 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_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 02:17:20,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:17:20,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:17:20,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:17:20,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:17:20,511 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:17:20,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2024-12-06 02:17:23,121 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/data/b3e423189/cb7cd75f498a466880a46026072c03bb/FLAG883c693f2 [2024-12-06 02:17:23,323 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:17:23,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2024-12-06 02:17:23,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/data/b3e423189/cb7cd75f498a466880a46026072c03bb/FLAG883c693f2 [2024-12-06 02:17:23,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/data/b3e423189/cb7cd75f498a466880a46026072c03bb [2024-12-06 02:17:23,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:17:23,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:17:23,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:17:23,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:17:23,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:17:23,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e5f2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23, skipping insertion in model container [2024-12-06 02:17:23,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:17:23,823 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_70251194-95c6-4a1c-bebd-1f7fe32e702f/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-12-06 02:17:23,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:17:23,844 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:17:23,852 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_70251194-95c6-4a1c-bebd-1f7fe32e702f/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2024-12-06 02:17:23,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:17:23,869 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:17:23,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23 WrapperNode [2024-12-06 02:17:23,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:17:23,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:17:23,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:17:23,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:17:23,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,891 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-12-06 02:17:23,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:17:23,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:17:23,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:17:23,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:17:23,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:17:23,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:17:23,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:17:23,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:17:23,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:17:23" (1/1) ... [2024-12-06 02:17:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:17:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:17:23,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:17:23,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:17:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:17:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 02:17:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 02:17:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:17:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:17:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:17:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:17:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:17:24,005 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:17:24,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:17:24,120 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-06 02:17:24,120 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:17:24,148 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:17:24,148 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 02:17:24,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:17:24 BoogieIcfgContainer [2024-12-06 02:17:24,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:17:24,149 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:17:24,149 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:17:24,157 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:17:24,157 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:17:24" (1/1) ... [2024-12-06 02:17:24,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:17:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-12-06 02:17:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-12-06 02:17:24,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 02:17:24,205 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:24,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:17:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-12-06 02:17:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-12-06 02:17:24,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 02:17:24,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:24,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:17:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 30 transitions. [2024-12-06 02:17:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-12-06 02:17:24,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 02:17:24,516 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:24,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:17:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-06 02:17:24,774 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-06 02:17:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 02:17:24,775 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:17:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:24,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 02:17:24,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:17:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:17:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:25,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 35 states and 53 transitions. [2024-12-06 02:17:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2024-12-06 02:17:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 02:17:25,364 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:25,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:17:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:25,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 02:17:25,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:17:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 02:17:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 57 transitions. [2024-12-06 02:17:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2024-12-06 02:17:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 02:17:25,853 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:25,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 02:17:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 56 transitions. [2024-12-06 02:17:26,198 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 56 transitions. [2024-12-06 02:17:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 02:17:26,199 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:17:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:17:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:17:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:17:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:17:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 20 states and 21 transitions. [2024-12-06 02:17:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-12-06 02:17:26,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 02:17:26,572 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-12-06 02:17:26,578 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 02:17:26,722 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L31(line 31) the Hoare annotation is: (= ~counter~0 0) [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L50(line 50) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L40(lines 40 49) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L40-1(lines 40 49) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L40-3(lines 40 49) the Hoare annotation is: true [2024-12-06 02:17:26,723 INFO L77 FloydHoareUtils]: At program point L36-1(lines 36 39) the Hoare annotation is: (or (<= (+ |ULTIMATE.start_main_#t~post3#1| 1) ~counter~0) (and (not (and (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|))) (not (= |ULTIMATE.start_main_#t~post3#1| 0)))) [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L36-2(lines 36 39) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L32(line 32) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L36-4(lines 36 39) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L45-2(lines 40 49) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L41(lines 40 49) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 15 17) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L19-2(lines 18 24) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L20(lines 20 21) the Hoare annotation is: true [2024-12-06 02:17:26,724 INFO L77 FloydHoareUtils]: At program point L19(lines 19 22) the Hoare annotation is: true [2024-12-06 02:17:26,725 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) the Hoare annotation is: true [2024-12-06 02:17:26,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:17:26 ImpRootNode [2024-12-06 02:17:26,735 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:17:26,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:17:26,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:17:26,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:17:26,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:17:24" (3/4) ... [2024-12-06 02:17:26,738 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 02:17:26,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-06 02:17:26,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 02:17:26,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-06 02:17:26,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-06 02:17:26,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 02:17:26,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 02:17:26,803 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:17:26,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:17:26,804 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:17:26,805 INFO L158 Benchmark]: Toolchain (without parser) took 3101.83ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 93.0MB in the beginning and 154.3MB in the end (delta: -61.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-12-06 02:17:26,805 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:17:26,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.74ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:17:26,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.75ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:17:26,806 INFO L158 Benchmark]: Boogie Preprocessor took 16.49ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 775.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:17:26,806 INFO L158 Benchmark]: RCFGBuilder took 239.48ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 67.6MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:17:26,806 INFO L158 Benchmark]: CodeCheck took 2586.08ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 67.4MB in the beginning and 158.8MB in the end (delta: -91.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:17:26,807 INFO L158 Benchmark]: Witness Printer took 68.12ms. Allocated memory is still 209.7MB. Free memory was 158.8MB in the beginning and 154.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:17:26,808 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: 2.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 414 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 231 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 931 GetRequests, 852 SyntacticMatches, 13 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 3 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 20 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 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.74ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.75ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.49ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 775.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 239.48ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 67.6MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2586.08ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 67.4MB in the beginning and 158.8MB in the end (delta: -91.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.12ms. Allocated memory is still 209.7MB. Free memory was 158.8MB in the beginning and 154.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 02:17:26,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70251194-95c6-4a1c-bebd-1f7fe32e702f/bin/ukojak-verify-CZk0znPC7b/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