./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL --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 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:10,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:10,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:57:10,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:10,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:10,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:10,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:10,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:10,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:10,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:11,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:11,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:11,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:11,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:11,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:11,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:11,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:11,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:11,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:11,006 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:11,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:11,008 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:11,008 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:11,009 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:11,009 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:11,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:11,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:11,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:11,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:11,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:11,012 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:11,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:11,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:11,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b [2023-11-19 03:57:11,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:11,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:11,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:11,292 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:11,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:11,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2023-11-19 03:57:14,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:14,796 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:14,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2023-11-19 03:57:14,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/data/891427f0b/fc624c60e6d44c72a04c4fbfd0a8612d/FLAG5986d94a2 [2023-11-19 03:57:14,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/data/891427f0b/fc624c60e6d44c72a04c4fbfd0a8612d [2023-11-19 03:57:14,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:14,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:14,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:14,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:14,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:14,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:14" (1/1) ... [2023-11-19 03:57:14,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd16210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:14, skipping insertion in model container [2023-11-19 03:57:14,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:14" (1/1) ... [2023-11-19 03:57:14,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:15,083 WARN L240 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_7e50db29-3d62-4c22-a0b4-e9bc24900754/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2023-11-19 03:57:15,089 WARN L240 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_7e50db29-3d62-4c22-a0b4-e9bc24900754/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2023-11-19 03:57:15,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:15,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:15,120 WARN L240 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_7e50db29-3d62-4c22-a0b4-e9bc24900754/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2023-11-19 03:57:15,121 WARN L240 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_7e50db29-3d62-4c22-a0b4-e9bc24900754/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2023-11-19 03:57:15,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:15,138 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:15,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15 WrapperNode [2023-11-19 03:57:15,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:15,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:15,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:15,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:15,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,192 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2023-11-19 03:57:15,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:15,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:15,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:15,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:15,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:15,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:15,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:15,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:15,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:15,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:15,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:15,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:15,409 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:15,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:15,612 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:15,646 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:15,646 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:57:15,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:15 BoogieIcfgContainer [2023-11-19 03:57:15,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:15,658 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:15,658 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:15,671 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:15,671 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:15" (1/1) ... [2023-11-19 03:57:15,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2023-11-19 03:57:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2023-11-19 03:57:15,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:57:15,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:15,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 03:57:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 03:57:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:57:16,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-19 03:57:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-19 03:57:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:57:16,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:16,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:16,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:16,958 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:57:16,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:16 ImpRootNode [2023-11-19 03:57:16,988 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:16,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:16,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:16,989 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:16,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:15" (3/4) ... [2023-11-19 03:57:16,990 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:57:17,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:57:17,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:17,044 INFO L158 Benchmark]: Toolchain (without parser) took 2208.99ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 74.5MB in the beginning and 77.0MB in the end (delta: -2.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,044 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:17,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.38ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 63.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.81ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 62.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,046 INFO L158 Benchmark]: Boogie Preprocessor took 49.92ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 61.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,047 INFO L158 Benchmark]: RCFGBuilder took 412.34ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 51.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,050 INFO L158 Benchmark]: CodeCheck took 1330.47ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 51.2MB in the beginning and 78.5MB in the end (delta: -27.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,054 INFO L158 Benchmark]: Witness Printer took 54.50ms. Allocated memory is still 144.7MB. Free memory was 78.5MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:17,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 10 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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 - CounterExampleResult [Line: 25]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned char n = __VERIFIER_nondet_uchar(); [L13] COND FALSE !(n == 0) [L16] unsigned char v = 0; [L17] unsigned char s = 0; [L18] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=1, n=2, s=255, v=255] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=2, n=2, s=0, v=1] [L19] COND FALSE !(i < n) VAL [i=2, n=2, s=0, v=1] [L24] COND TRUE s < v VAL [i=2, n=2, s=0, v=1] [L25] reach_error() VAL [i=2, n=2, s=0, v=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.38ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 63.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.81ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 62.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.92ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 61.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.34ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 51.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1330.47ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 51.2MB in the beginning and 78.5MB in the end (delta: -27.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 54.50ms. Allocated memory is still 144.7MB. Free memory was 78.5MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:57:17,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e50db29-3d62-4c22-a0b4-e9bc24900754/bin/ukojak-verify-G8NBE6pJGL/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