./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.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_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/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_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/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_431fc17a-48d7-4dae-a11e-df37d7d99b02/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 a69d5fb397906cd89c0147a3c54d3ad7658561b03775140fca8816654a2bbc3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:45:01,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:45:01,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:45:01,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:45:01,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:45:01,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:45:01,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:45:01,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:45:01,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:45:01,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:45:01,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:45:01,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:45:01,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:45:01,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:45:01,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:45:01,521 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:45:01,521 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:45:01,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:45:01,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:45:01,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:45:01,522 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_431fc17a-48d7-4dae-a11e-df37d7d99b02/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 -> a69d5fb397906cd89c0147a3c54d3ad7658561b03775140fca8816654a2bbc3d [2024-12-06 03:45:01,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:45:01,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:45:01,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:45:01,739 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:45:01,739 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:45:01,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c [2024-12-06 03:45:04,344 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/data/732eb42e0/7fbd9d64962246fbbf0f2e3e84708d17/FLAG921172f39 [2024-12-06 03:45:04,553 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:45:04,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c [2024-12-06 03:45:04,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/data/732eb42e0/7fbd9d64962246fbbf0f2e3e84708d17/FLAG921172f39 [2024-12-06 03:45:04,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/data/732eb42e0/7fbd9d64962246fbbf0f2e3e84708d17 [2024-12-06 03:45:04,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:45:04,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:45:04,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:45:04,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:45:04,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:45:04,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:45:04" (1/1) ... [2024-12-06 03:45:04,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b03697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:04, skipping insertion in model container [2024-12-06 03:45:04,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:45:04" (1/1) ... [2024-12-06 03:45:04,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:45:05,054 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_431fc17a-48d7-4dae-a11e-df37d7d99b02/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c[597,610] [2024-12-06 03:45:05,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:45:05,079 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:45:05,087 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_431fc17a-48d7-4dae-a11e-df37d7d99b02/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c[597,610] [2024-12-06 03:45:05,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:45:05,104 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:45:05,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05 WrapperNode [2024-12-06 03:45:05,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:45:05,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:45:05,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:45:05,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:45:05,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,127 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-12-06 03:45:05,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:45:05,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:45:05,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:45:05,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:45:05,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:45:05,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:45:05,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:45:05,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:45:05,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:45:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:45:05,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:45:05,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:45:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:45:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:45:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:45:05,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:45:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:45:05,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:45:05,234 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:45:05,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:45:05,345 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 03:45:05,345 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:45:05,381 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:45:05,381 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:45:05,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:45:05 BoogieIcfgContainer [2024-12-06 03:45:05,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:45:05,382 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:45:05,382 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:45:05,390 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:45:05,390 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:45:05" (1/1) ... [2024-12-06 03:45:05,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:45:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2024-12-06 03:45:05,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-12-06 03:45:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:45:05,438 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:05,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:05,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 03:45:05,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:45:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:45:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-12-06 03:45:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-12-06 03:45:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:45:05,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:05,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:45:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:06,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-12-06 03:45:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-12-06 03:45:06,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 03:45:06,195 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:06,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 03:45:06,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:45:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:45:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2024-12-06 03:45:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2024-12-06 03:45:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:45:06,686 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:06,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-06 03:45:06,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:45:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:45:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2024-12-06 03:45:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2024-12-06 03:45:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 03:45:07,698 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:07,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:45:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 33 states and 58 transitions. [2024-12-06 03:45:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2024-12-06 03:45:08,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:45:08,882 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:08,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:08,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-06 03:45:08,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:45:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:45:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 37 states and 69 transitions. [2024-12-06 03:45:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 69 transitions. [2024-12-06 03:45:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:45:10,602 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:10,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-06 03:45:10,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:45:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:45:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 38 states and 70 transitions. [2024-12-06 03:45:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2024-12-06 03:45:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:45:11,995 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:11,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 03:45:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 46 states and 90 transitions. [2024-12-06 03:45:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 90 transitions. [2024-12-06 03:45:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:45:14,547 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:45:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 03:45:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:45:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 28 states and 37 transitions. [2024-12-06 03:45:15,165 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-12-06 03:45:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-06 03:45:15,166 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:45:15,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:45:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:45:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:45:15,207 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:45:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:45:15,246 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2024-12-06 03:45:15,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:45:15 ImpRootNode [2024-12-06 03:45:15,271 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:45:15,272 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:45:15,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:45:15,272 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:45:15,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:45:05" (3/4) ... [2024-12-06 03:45:15,273 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:45:15,309 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 16. [2024-12-06 03:45:15,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:45:15,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:45:15,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:45:15,360 INFO L158 Benchmark]: Toolchain (without parser) took 10425.81ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 90.2MB in the end (delta: 27.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-12-06 03:45:15,360 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:45:15,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.62ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:45:15,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.58ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 105.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:45:15,361 INFO L158 Benchmark]: Boogie Preprocessor took 15.13ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.2MB in the end (delta: 870.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:45:15,361 INFO L158 Benchmark]: RCFGBuilder took 237.32ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 91.3MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:45:15,362 INFO L158 Benchmark]: CodeCheck took 9889.22ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 96.1MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:45:15,362 INFO L158 Benchmark]: Witness Printer took 87.64ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 90.2MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:45:15,364 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: 9.8s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 325 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 992 IncrementalHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 325 mSolverCounterUnsat, 148 mSDtfsCounter, 992 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1472 GetRequests, 1294 SyntacticMatches, 42 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7674 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 1160 SizeOfPredicates, 14 NumberOfNonLiveVariables, 363 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 46/71 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=2, Y=1, counter=0, v=0, x=0, y=0] [L31] EXPR counter++ VAL [X=2, Y=1, counter=1, v=0, x=0, y=0] [L31] COND TRUE counter++<2 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2, Y=1, counter=1, v=0, x=0, xy=0, y=0, yx=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2, Y=1, counter=1, v=0, x=0, xy=0, y=0, yx=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=2, Y=1, counter=1, v=-2, x=1, xy=0, y=1, yx=0] [L31] EXPR counter++ VAL [X=2, Y=1, counter=2, v=-2, x=1, xy=0, y=1, yx=0] [L31] COND TRUE counter++<2 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2, Y=1, counter=2, v=-2, x=1, xy=2, y=1, yx=1] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2, Y=1, counter=2, v=-2, x=1, xy=2, y=1, yx=1] [L35] COND FALSE !(!(x <= X)) [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y [L45] x++ VAL [X=2, Y=1, counter=2, v=0, x=2, xy=2, y=1, yx=1] [L31] EXPR counter++ VAL [X=2, Y=1, counter=3, v=0, x=2, xy=2, y=1, yx=1] [L31] COND FALSE !(counter++<2) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=2, Y=1, counter=3, v=0, xy=2, y=1, yx=2] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=3] [L14] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L16] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.62ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.58ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 105.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.13ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.2MB in the end (delta: 870.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.32ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 91.3MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 9889.22ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 96.1MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 87.64ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 90.2MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:45:15,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_431fc17a-48d7-4dae-a11e-df37d7d99b02/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE