./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/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 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:07:11,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:07:11,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:07:11,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:07:11,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:07:11,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:07:11,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:07:11,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:07:11,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:07:11,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:07:11,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:07:11,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:07:11,135 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:07:11,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:07:11,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:07:11,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:07:11,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:07:11,136 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:07:11,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:07:11,136 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/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 -> 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 [2024-12-05 23:07:11,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:07:11,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:07:11,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:07:11,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:07:11,381 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:07:11,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-12-05 23:07:14,005 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/data/1533f94e5/2bf963ebcd434143bf2299c937c4a18c/FLAGea69f9968 [2024-12-05 23:07:14,203 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:07:14,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-12-05 23:07:14,211 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/data/1533f94e5/2bf963ebcd434143bf2299c937c4a18c/FLAGea69f9968 [2024-12-05 23:07:14,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/data/1533f94e5/2bf963ebcd434143bf2299c937c4a18c [2024-12-05 23:07:14,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:07:14,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:07:14,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:07:14,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:07:14,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:07:14,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3368bc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14, skipping insertion in model container [2024-12-05 23:07:14,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:07:14,707 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-12-05 23:07:14,712 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-12-05 23:07:14,714 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-12-05 23:07:14,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:07:14,728 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:07:14,741 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-12-05 23:07:14,742 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-12-05 23:07:14,744 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_e35dabbb-c2f7-483a-9b11-07e2d675baa2/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-12-05 23:07:14,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:07:14,759 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:07:14,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14 WrapperNode [2024-12-05 23:07:14,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:07:14,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:07:14,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:07:14,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:07:14,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,789 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2024-12-05 23:07:14,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:07:14,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:07:14,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:07:14,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:07:14,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,801 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:07:14,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:07:14,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:07:14,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:07:14,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:07:14" (1/1) ... [2024-12-05 23:07:14,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:07:14,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:07:14,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:07:14,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:07:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:07:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:07:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:07:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:07:14,918 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:07:14,920 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:07:15,029 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-12-05 23:07:15,029 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:07:15,047 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:07:15,047 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:07:15,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:07:15 BoogieIcfgContainer [2024-12-05 23:07:15,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:07:15,049 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:07:15,049 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:07:15,058 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:07:15,058 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:07:15" (1/1) ... [2024-12-05 23:07:15,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:07:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2024-12-05 23:07:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2024-12-05 23:07:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 23:07:15,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:15,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:07:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-05 23:07:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-05 23:07:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:07:15,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:15,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:07:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-12-05 23:07:15,729 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-12-05 23:07:15,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:07:15,729 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:07:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-12-05 23:07:16,187 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-05 23:07:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:07:16,187 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:16,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:07:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-12-05 23:07:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-12-05 23:07:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:07:16,539 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:07:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2024-12-05 23:07:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-12-05 23:07:17,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:07:17,148 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:17,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 23:07:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-12-05 23:07:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-12-05 23:07:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:07:17,348 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:07:17,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:07:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:07:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 23:07:18,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:07:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-12-05 23:07:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-05 23:07:18,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-05 23:07:18,810 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-12-05 23:07:18,816 INFO L726 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2024-12-05 23:07:18,900 INFO L77 FloydHoareUtils]: At program point L33(lines 33 89) the Hoare annotation is: (and (= |ULTIMATE.start_main_~main__i~0#1| 0) (= |ULTIMATE.start_main_~main__j~0#1| 0) (<= (+ |ULTIMATE.start_main_~main__i~0#1| 1) |ULTIMATE.start_main_~main__nlen~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1)) [2024-12-05 23:07:18,900 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-05 23:07:18,901 INFO L75 FloydHoareUtils]: For program point L64(line 64) no Hoare annotation was computed. [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point L62(lines 62 70) the Hoare annotation is: (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 0)) (< 0 (+ |ULTIMATE.start_main_~main__i~0#1| 1)) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)) [2024-12-05 23:07:18,901 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2024-12-05 23:07:18,901 INFO L75 FloydHoareUtils]: For program point L48(line 48) no Hoare annotation was computed. [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point L46(lines 46 87) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~main__i~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)) [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 13 102) the Hoare annotation is: true [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point $Ultimate##10(lines 55 86) the Hoare annotation is: (and (< 0 (+ |ULTIMATE.start_main_~main__i~0#1| 1)) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)) [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point L40(lines 39 89) the Hoare annotation is: (and (< 0 (+ |ULTIMATE.start_main_~main__i~0#1| 1)) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)) [2024-12-05 23:07:18,901 INFO L77 FloydHoareUtils]: At program point $Ultimate##2(lines 23 101) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2024-12-05 23:07:18,902 INFO L77 FloydHoareUtils]: At program point L26(lines 26 96) the Hoare annotation is: (and (= |ULTIMATE.start_main_~main__i~0#1| 0) (= |ULTIMATE.start_main_~main__j~0#1| 0) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)) [2024-12-05 23:07:18,902 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2024-12-05 23:07:18,902 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 64) no Hoare annotation was computed. [2024-12-05 23:07:18,902 INFO L77 FloydHoareUtils]: At program point L76(lines 76 85) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~main__i~0#1|) [2024-12-05 23:07:18,902 INFO L75 FloydHoareUtils]: For program point L35(line 35) no Hoare annotation was computed. [2024-12-05 23:07:18,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:07:18 ImpRootNode [2024-12-05 23:07:18,914 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:07:18,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:07:18,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:07:18,914 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:07:18,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:07:15" (3/4) ... [2024-12-05 23:07:18,917 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-05 23:07:18,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-12-05 23:07:18,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-05 23:07:18,924 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-05 23:07:18,924 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-05 23:07:18,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:07:18,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:07:18,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:07:18,992 INFO L158 Benchmark]: Toolchain (without parser) took 4425.16ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 83.6MB in the end (delta: 34.1MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-12-05 23:07:18,992 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:07:18,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:07:18,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.53ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:07:18,993 INFO L158 Benchmark]: Boogie Preprocessor took 16.52ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.5MB in the end (delta: 803.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:07:18,993 INFO L158 Benchmark]: RCFGBuilder took 240.91ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 93.2MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:07:18,994 INFO L158 Benchmark]: CodeCheck took 3865.00ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 87.3MB in the end (delta: 5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-12-05 23:07:18,994 INFO L158 Benchmark]: Witness Printer took 76.75ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 83.6MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:07:18,995 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 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 607 IncrementalHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 42 mSDtfsCounter, 607 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 671 GetRequests, 556 SyntacticMatches, 15 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3155 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 10/19 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: 35]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 48]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 64]: 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 3 specifications checked. All of them hold - InvariantResult [Line: 23]: Location Invariant Derived location invariant: (main__i == 0) - InvariantResult [Line: 55]: Location Invariant Derived location invariant: ((0 < ((long long) main__i + 1)) && (main__i < main__nlen)) - InvariantResult [Line: 39]: Location Invariant Derived location invariant: ((0 < ((long long) main__i + 1)) && (main__i < main__nlen)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.53ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.52ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.5MB in the end (delta: 803.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 240.91ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 93.2MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3865.00ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 87.3MB in the end (delta: 5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 76.75ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 83.6MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-05 23:07:19,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e35dabbb-c2f7-483a-9b11-07e2d675baa2/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