./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/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 8cecbb1437ef2a2416e9d468bf4de8fbbd7da1f76f2f86e847aa165ffb35626c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:57:39,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:57:39,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:57:39,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:57:39,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:57:39,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:57:39,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:57:39,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:57:39,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:57:39,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:57:39,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:57:39,141 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:57:39,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:57:39,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:57:39,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:57:39,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:57:39,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:57:39,142 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:57:39,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:57:39,142 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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/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 -> 8cecbb1437ef2a2416e9d468bf4de8fbbd7da1f76f2f86e847aa165ffb35626c [2024-12-05 21:57:39,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:57:39,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:57:39,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:57:39,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:57:39,379 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:57:39,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2024-12-05 21:57:41,969 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/data/823d9df2c/ed25b9812a114fa4b3ccbac6f6372cb7/FLAG55f95dea9 [2024-12-05 21:57:42,160 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:57:42,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2024-12-05 21:57:42,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/data/823d9df2c/ed25b9812a114fa4b3ccbac6f6372cb7/FLAG55f95dea9 [2024-12-05 21:57:42,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/data/823d9df2c/ed25b9812a114fa4b3ccbac6f6372cb7 [2024-12-05 21:57:42,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:57:42,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:57:42,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:57:42,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:57:42,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:57:42,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a4adb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42, skipping insertion in model container [2024-12-05 21:57:42,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:57:42,690 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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c[1175,1188] [2024-12-05 21:57:42,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:57:42,711 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:57:42,718 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_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c[1175,1188] [2024-12-05 21:57:42,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:57:42,732 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:57:42,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42 WrapperNode [2024-12-05 21:57:42,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:57:42,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:57:42,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:57:42,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:57:42,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,753 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2024-12-05 21:57:42,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:57:42,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:57:42,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:57:42,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:57:42,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,763 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:57:42,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:57:42,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:57:42,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:57:42,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:57:42" (1/1) ... [2024-12-05 21:57:42,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:57:42,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:57:42,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:57:42,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:57:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:57:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:57:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:57:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:57:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 21:57:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 21:57:42,868 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:57:42,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:57:42,976 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-05 21:57:42,976 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:57:43,026 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:57:43,027 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 21:57:43,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:57:43 BoogieIcfgContainer [2024-12-05 21:57:43,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:57:43,028 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:57:43,028 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:57:43,035 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:57:43,035 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:57:43" (1/1) ... [2024-12-05 21:57:43,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:57:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-12-05 21:57:43,089 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-12-05 21:57:43,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:57:43,092 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:43,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:43,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-05 21:57:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-05 21:57:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:57:43,218 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:43,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:57:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:43,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 21:57:43,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:57:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:43,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-12-05 21:57:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-12-05 21:57:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:57:43,452 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-12-05 21:57:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-05 21:57:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:57:43,771 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-12-05 21:57:43,895 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-12-05 21:57:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 21:57:43,896 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:44,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 20 states and 22 transitions. [2024-12-05 21:57:44,552 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-12-05 21:57:44,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 21:57:44,552 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:57:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:57:44,604 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:57:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:57:44,633 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-05 21:57:44,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:57:44 ImpRootNode [2024-12-05 21:57:44,654 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:57:44,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:57:44,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:57:44,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:57:44,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:57:43" (3/4) ... [2024-12-05 21:57:44,656 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 21:57:44,688 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 13. [2024-12-05 21:57:44,727 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 21:57:44,728 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 21:57:44,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:57:44,729 INFO L158 Benchmark]: Toolchain (without parser) took 2183.91ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 109.9MB in the end (delta: 7.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-12-05 21:57:44,729 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:57:44,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.57ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:57:44,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.34ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:57:44,730 INFO L158 Benchmark]: Boogie Preprocessor took 14.92ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.9MB in the end (delta: 833.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:57:44,730 INFO L158 Benchmark]: RCFGBuilder took 257.61ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 90.3MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:57:44,730 INFO L158 Benchmark]: CodeCheck took 1626.54ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 114.4MB in the end (delta: -24.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-12-05 21:57:44,731 INFO L158 Benchmark]: Witness Printer took 73.14ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 109.9MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:57:44,733 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 92 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 344 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 1 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 6/7 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: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int counter = 0; [L30] int a, b; [L31] long long x, y, z; [L33] a = __VERIFIER_nondet_int() [L34] b = __VERIFIER_nondet_int() [L35] CALL assume_abort_if_not(b >= 1) [L18] COND FALSE !(!cond) [L35] RET assume_abort_if_not(b >= 1) [L37] x = a [L38] y = b [L39] z = 0 VAL [a=-1, b=2, counter=0, x=-1, y=2, z=0] [L41] EXPR counter++ VAL [a=-1, b=2, counter=1, x=-1, y=2, z=0] [L41] COND TRUE counter++<1 [L42] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, counter=1] [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L42] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [a=-1, b=2, counter=1, x=-1, y=2, z=0] [L43] COND FALSE !(!(y != 0)) [L46] COND FALSE !(y % 2 == 1) [L50] x = 2 * x [L51] y = y / 2 VAL [a=-1, b=2, counter=1, x=-2, y=1, z=0] [L41] EXPR counter++ VAL [a=-1, b=2, counter=2, x=-2, y=1, z=0] [L41] COND FALSE !(counter++<1) [L53] CALL __VERIFIER_assert(z == (long long) a * b) VAL [\old(cond)=0, counter=2] [L21] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L23] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.57ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.34ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.92ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.9MB in the end (delta: 833.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 257.61ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 90.3MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1626.54ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 114.4MB in the end (delta: -24.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Witness Printer took 73.14ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 109.9MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 21:57:44,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1134c6ca-0743-4b70-93a4-2bf6ded1ef85/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