./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.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_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:42:10,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:42:10,771 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:42:10,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:42:10,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:42:10,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:42:10,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:42:10,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:42:10,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:42:10,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:42:10,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:42:10,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:42:10,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:42:10,815 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:42:10,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:42:10,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:42:10,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:42:10,816 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_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 [2024-11-25 02:42:11,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:42:11,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:42:11,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:42:11,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:42:11,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:42:11,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2024-11-25 02:42:14,149 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/data/63df57331/ad76bbb236464319b605bb49e5f11a59/FLAG8fb30a401 [2024-11-25 02:42:14,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:42:14,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2024-11-25 02:42:14,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/data/63df57331/ad76bbb236464319b605bb49e5f11a59/FLAG8fb30a401 [2024-11-25 02:42:14,448 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/data/63df57331/ad76bbb236464319b605bb49e5f11a59 [2024-11-25 02:42:14,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:42:14,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:42:14,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:42:14,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:42:14,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:42:14,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec07033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14, skipping insertion in model container [2024-11-25 02:42:14,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:42:14,620 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_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2024-11-25 02:42:14,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:42:14,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:42:14,656 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_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2024-11-25 02:42:14,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:42:14,676 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:42:14,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14 WrapperNode [2024-11-25 02:42:14,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:42:14,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:42:14,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:42:14,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:42:14,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,706 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-11-25 02:42:14,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:42:14,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:42:14,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:42:14,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:42:14,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,719 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:42:14,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:42:14,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:42:14,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:42:14,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:42:14" (1/1) ... [2024-11-25 02:42:14,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:42:14,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:42:14,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:42:14,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:42:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:42:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:42:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:42:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:42:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:42:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:42:14,867 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:42:14,869 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:42:14,988 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 02:42:14,989 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:42:15,049 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:42:15,049 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:42:15,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:15 BoogieIcfgContainer [2024-11-25 02:42:15,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:42:15,050 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:42:15,051 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:42:15,070 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:42:15,070 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:15" (1/1) ... [2024-11-25 02:42:15,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:42:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-11-25 02:42:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-11-25 02:42:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 02:42:15,142 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-11-25 02:42:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-25 02:42:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:42:15,279 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:42:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:15,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-25 02:42:15,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:42:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-11-25 02:42:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-11-25 02:42:15,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:42:15,642 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-25 02:42:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-25 02:42:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:42:16,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:17,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-25 02:42:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-25 02:42:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:42:17,052 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 22 states and 26 transitions. [2024-11-25 02:42:18,076 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-11-25 02:42:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:42:18,077 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:18,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:42:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:18,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-25 02:42:18,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:42:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:42:22,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:42:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 21 transitions. [2024-11-25 02:42:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-25 02:42:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-25 02:42:22,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:22,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:42:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:42:22,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-25 02:42:22,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:42:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 02:42:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:42:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 21 states and 25 transitions. [2024-11-25 02:42:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-25 02:42:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 02:42:22,762 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:42:22,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:42:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:42:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:42:22,809 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:42:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:42:22,832 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-25 02:42:22,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:42:22 ImpRootNode [2024-11-25 02:42:22,877 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:42:22,877 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:42:22,877 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:42:22,878 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:42:22,878 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:42:15" (3/4) ... [2024-11-25 02:42:22,879 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 02:42:22,933 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 15. [2024-11-25 02:42:22,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:42:22,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:42:22,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:42:23,000 INFO L158 Benchmark]: Toolchain (without parser) took 8548.23ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 86.4MB in the end (delta: 6.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:23,000 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:23,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.10ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:23,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:23,001 INFO L158 Benchmark]: Boogie Preprocessor took 18.16ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 79.3MB in the end (delta: 634.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:23,001 INFO L158 Benchmark]: RCFGBuilder took 323.88ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 67.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:42:23,003 INFO L158 Benchmark]: CodeCheck took 7826.23ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 90.3MB in the end (delta: -23.0MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2024-11-25 02:42:23,004 INFO L158 Benchmark]: Witness Printer took 121.84ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 86.4MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:42:23,006 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 196 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 196 mSolverCounterUnsat, 160 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 723 GetRequests, 639 SyntacticMatches, 12 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 3 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 15/19 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 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L22] CALL assume_abort_if_not(k <= 256) [L7] COND FALSE !(!cond) [L22] RET assume_abort_if_not(k <= 256) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [c=0, counter=0, k=2, x=0, y=0] [L28] EXPR counter++ VAL [c=0, counter=1, k=2, x=0, y=0] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L29] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [c=0, counter=1, k=2, x=0, y=0] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x VAL [c=1, counter=1, k=2, x=1, y=1] [L28] EXPR counter++ VAL [c=1, counter=2, k=2, x=1, y=1] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L39] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [c=1, counter=2, k=2, x=1, y=1] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L12] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.10ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.16ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 79.3MB in the end (delta: 634.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 323.88ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 67.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 7826.23ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 90.3MB in the end (delta: -23.0MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Witness Printer took 121.84ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 86.4MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 02:42:23,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a38c8d2c-59b6-4c90-aa58-fd81dd16e0a8/bin/ukojak-verify-ENZ3QT5qd3/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE