./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 079768eb2ce141267a1411f9330cb4d0cef674bf78865555f3130b47379d643a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:41:56,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:41:56,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:41:56,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:41:56,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:41:56,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:41:56,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:41:56,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:41:56,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:41:56,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:41:56,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:41:56,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:41:56,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:41:56,901 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:41:56,901 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:41:56,902 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:41:56,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:41:56,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:41:56,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:41:56,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:41:56,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:41:56,902 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:41:56,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:41:56,903 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_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079768eb2ce141267a1411f9330cb4d0cef674bf78865555f3130b47379d643a [2024-11-13 21:41:57,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:41:57,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:41:57,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:41:57,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:41:57,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:41:57,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c Unable to find full path for "g++" [2024-11-13 21:41:59,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:41:59,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:41:59,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2024-11-13 21:41:59,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/data/a7288038b/4938c542ac074334a2ceaa8711dda444/FLAG0f4ac2aae [2024-11-13 21:41:59,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/data/a7288038b/4938c542ac074334a2ceaa8711dda444 [2024-11-13 21:41:59,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:41:59,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:41:59,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:41:59,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:41:59,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:41:59,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f643582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59, skipping insertion in model container [2024-11-13 21:41:59,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:41:59,895 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_1849b649-1fdd-417b-a864-0282f4b728b9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c[576,589] [2024-11-13 21:41:59,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:41:59,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:41:59,931 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_1849b649-1fdd-417b-a864-0282f4b728b9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c[576,589] [2024-11-13 21:41:59,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:41:59,953 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:41:59,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59 WrapperNode [2024-11-13 21:41:59,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:41:59,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:41:59,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:41:59,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:41:59,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,987 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-11-13 21:41:59,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:41:59,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:41:59,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:41:59,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:41:59,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:41:59,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:42:00,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:42:00,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:42:00,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:42:00,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:41:59" (1/1) ... [2024-11-13 21:42:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:42:00,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:42:00,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:42:00,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:42:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:42:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:42:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:42:00,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:42:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 21:42:00,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 21:42:00,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:42:00,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:42:00,327 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 21:42:00,327 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:42:00,371 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:42:00,372 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 21:42:00,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:00 BoogieIcfgContainer [2024-11-13 21:42:00,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:42:00,373 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:42:00,373 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:42:00,386 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:42:00,387 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:00" (1/1) ... [2024-11-13 21:42:00,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:42:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2024-11-13 21:42:00,468 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2024-11-13 21:42:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:42:00,473 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:00,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:42:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-11-13 21:42:00,646 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-13 21:42:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:42:00,647 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:00,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:42:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2024-11-13 21:42:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2024-11-13 21:42:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:42:00,809 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:00,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 21:42:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:00,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 21:42:00,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:42:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:42:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 52 transitions. [2024-11-13 21:42:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2024-11-13 21:42:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 21:42:01,354 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:01,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 21:42:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:01,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 21:42:01,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:42:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:42:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 35 states and 61 transitions. [2024-11-13 21:42:02,032 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2024-11-13 21:42:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 21:42:02,034 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:02,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:42:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 37 states and 64 transitions. [2024-11-13 21:42:02,678 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2024-11-13 21:42:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 21:42:02,678 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:02,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 21:42:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 42 states and 75 transitions. [2024-11-13 21:42:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2024-11-13 21:42:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:42:03,781 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:03,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 21:42:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:03,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 21:42:03,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:42:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 21:42:05,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 48 states and 87 transitions. [2024-11-13 21:42:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 87 transitions. [2024-11-13 21:42:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:42:05,090 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:05,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 21:42:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 89 transitions. [2024-11-13 21:42:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 89 transitions. [2024-11-13 21:42:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:42:05,966 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 21:42:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 18 states and 20 transitions. [2024-11-13 21:42:06,516 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-13 21:42:06,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 21:42:06,517 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-13 21:42:06,532 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 21:42:06,861 INFO L77 FloydHoareUtils]: At program point L48(line 48) the Hoare annotation is: true [2024-11-13 21:42:06,861 INFO L77 FloydHoareUtils]: At program point L49(lines 46 58) the Hoare annotation is: true [2024-11-13 21:42:06,861 INFO L77 FloydHoareUtils]: At program point L37-1(lines 37 61) the Hoare annotation is: (not (and (= |ULTIMATE.start_main_#t~post6#1| 0) (= |ULTIMATE.start_main_~b~0#1| 0) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (< ~counter~0 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| 0))) [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L37-3(lines 37 61) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L37-4(lines 37 61) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L54(line 54) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L54-1(line 54) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L46-1(lines 46 58) the Hoare annotation is: (not (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (< ~counter~0 (+ |ULTIMATE.start_main_#t~post7#1| 1)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_#t~post7#1|))) [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L46-3(lines 46 58) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point L46-4(lines 46 58) the Hoare annotation is: true [2024-11-13 21:42:06,862 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L38(line 38) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L38-1(line 38) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L63(line 63) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L47(line 47) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L47-1(line 47) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L39(lines 37 61) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L16(lines 16 17) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L15(lines 15 18) the Hoare annotation is: (not (and (< __VERIFIER_assert_~cond 1) (not (= __VERIFIER_assert_~cond 0)))) [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point L15-2(lines 14 20) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 14 20) the Hoare annotation is: true [2024-11-13 21:42:06,863 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (< |__VERIFIER_assert_#in~cond| 1))) [2024-11-13 21:42:06,864 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) the Hoare annotation is: true [2024-11-13 21:42:06,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:42:06 ImpRootNode [2024-11-13 21:42:06,883 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:42:06,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:42:06,895 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:42:06,895 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:42:06,896 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:00" (3/4) ... [2024-11-13 21:42:06,898 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 21:42:06,902 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 21:42:06,908 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-13 21:42:06,908 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 21:42:06,909 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 21:42:06,909 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 21:42:06,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:42:06,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 21:42:06,997 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:42:06,998 INFO L158 Benchmark]: Toolchain (without parser) took 7308.03ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 110.9MB in the end (delta: 7.8MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2024-11-13 21:42:06,998 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:42:06,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.76ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:42:06,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.66ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:42:06,999 INFO L158 Benchmark]: Boogie Preprocessor took 26.75ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 105.4MB in the end (delta: 703.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:42:07,000 INFO L158 Benchmark]: RCFGBuilder took 357.58ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 91.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:42:07,000 INFO L158 Benchmark]: CodeCheck took 6510.07ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 41.3MB in the end (delta: 50.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-11-13 21:42:07,000 INFO L158 Benchmark]: Witness Printer took 112.90ms. Allocated memory is still 142.6MB. Free memory was 41.3MB in the beginning and 110.9MB in the end (delta: -69.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-13 21:42:07,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 868 IncrementalHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 264 mSolverCounterUnsat, 242 mSDtfsCounter, 868 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1331 GetRequests, 1205 SyntacticMatches, 14 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4917 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 342 SizeOfPredicates, 5 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 47/50 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: 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: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((0 < cond) || (cond == 0)) Ensures: (counter == \old(counter)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.76ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.66ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.75ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 105.4MB in the end (delta: 703.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.58ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 91.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 6510.07ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 41.3MB in the end (delta: 50.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 112.90ms. Allocated memory is still 142.6MB. Free memory was 41.3MB in the beginning and 110.9MB in the end (delta: -69.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 21:42:07,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849b649-1fdd-417b-a864-0282f4b728b9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE