./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:42:56,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:42:56,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-11 23:42:56,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:42:56,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:42:56,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:42:56,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:42:56,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:42:56,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:42:56,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:42:56,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:42:56,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:42:56,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:42:56,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:42:56,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:42:56,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:42:56,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:42:56,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:42:56,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:42:56,329 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:42:56,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:42:56,331 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:42:56,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:42:56,332 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:42:56,332 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:42:56,333 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:42:56,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:42:56,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:42:56,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:42:56,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:42:56,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:42:56,336 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:42:56,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:42:56,337 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:42:56,337 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_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2023-11-11 23:42:56,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:42:56,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:42:56,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:42:56,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:42:56,739 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:42:56,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2023-11-11 23:43:00,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:43:00,371 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:43:00,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/sv-benchmarks/c/ldv-regression/test_while_int.i [2023-11-11 23:43:00,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/data/c43f59c47/b714a48d72f94a829f6eaad1a5381d66/FLAGe0960bc05 [2023-11-11 23:43:00,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/data/c43f59c47/b714a48d72f94a829f6eaad1a5381d66 [2023-11-11 23:43:00,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:43:00,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:43:00,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:00,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:43:00,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:43:00,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a46af34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00, skipping insertion in model container [2023-11-11 23:43:00,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:43:00,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:00,663 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:43:00,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:00,696 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:43:00,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00 WrapperNode [2023-11-11 23:43:00,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:00,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:00,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:43:00,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:43:00,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,736 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 29 [2023-11-11 23:43:00,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:00,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:43:00,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:43:00,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:43:00,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:43:00,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:43:00,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:43:00,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:43:00,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:00" (1/1) ... [2023-11-11 23:43:00,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:00,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:43:00,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:43:00,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:43:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:43:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:43:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:43:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:43:00,914 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:43:00,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:43:01,047 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:43:01,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:43:01,100 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:43:01,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:01 BoogieIcfgContainer [2023-11-11 23:43:01,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:43:01,105 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:43:01,106 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:43:01,116 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:43:01,116 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:01" (1/1) ... [2023-11-11 23:43:01,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:43:01,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-11 23:43:01,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-11 23:43:01,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:43:01,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:01,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-11 23:43:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-11 23:43:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:43:01,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:01,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-11 23:43:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-11 23:43:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:43:01,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:01,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-11 23:43:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-11 23:43:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:02,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:02,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-11 23:43:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-11 23:43:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:02,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:43:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:03,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-11 23:43:03,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-11 23:43:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:03,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:03,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:03,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-11 23:43:03,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-11 23:43:03,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:43:03,521 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-11 23:43:03,536 INFO L753 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-11 23:43:03,706 INFO L560 CodeCheckObserver]: Invariant with dag size 16 [2023-11-11 23:43:03,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:43:03 ImpRootNode [2023-11-11 23:43:03,715 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:43:03,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:43:03,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:43:03,716 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:43:03,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:01" (3/4) ... [2023-11-11 23:43:03,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:43:03,728 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-11 23:43:03,728 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-11 23:43:03,728 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:43:03,728 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:43:03,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:43:03,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:43:03,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:43:03,823 INFO L158 Benchmark]: Toolchain (without parser) took 3423.12ms. Allocated memory is still 144.7MB. Free memory was 102.5MB in the beginning and 88.2MB in the end (delta: 14.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-11 23:43:03,824 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 111.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:43:03,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.99ms. Allocated memory is still 144.7MB. Free memory was 102.3MB in the beginning and 92.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:43:03,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.87ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:03,825 INFO L158 Benchmark]: Boogie Preprocessor took 23.79ms. Allocated memory is still 144.7MB. Free memory was 90.9MB in the beginning and 89.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:43:03,826 INFO L158 Benchmark]: RCFGBuilder took 342.17ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 79.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:43:03,826 INFO L158 Benchmark]: CodeCheck took 2609.85ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 92.4MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:43:03,827 INFO L158 Benchmark]: Witness Printer took 106.97ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 88.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:43:03,829 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 0 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/21 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 1)) || ((i < 1) && (0 <= (i + 2147483648)))) || ((1 < i) && (i <= 2))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 111.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.99ms. Allocated memory is still 144.7MB. Free memory was 102.3MB in the beginning and 92.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.87ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.79ms. Allocated memory is still 144.7MB. Free memory was 90.9MB in the beginning and 89.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 342.17ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 79.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2609.85ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 92.4MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 106.97ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 88.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:43:03,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b14817a-853e-4d54-8212-6a2be1a72bd8/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE