./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/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_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:52:15,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:52:15,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:52:15,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:52:15,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:52:15,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:52:15,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:52:15,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:52:15,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:52:15,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:52:15,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:52:15,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:52:15,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:52:15,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:52:15,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:52:15,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:52:15,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:52:15,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:52:15,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:52:15,211 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:52:15,212 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:52:15,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:52:15,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:52:15,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:52:15,215 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:52:15,216 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:52:15,216 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:52:15,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:52:15,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:15,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:52:15,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:52:15,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:52:15,220 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:52:15,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:52:15,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:52:15,222 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_22f02573-3ed0-416c-953f-364d73a78eeb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2023-11-19 02:52:15,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:52:15,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:52:15,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:52:15,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:52:15,532 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:52:15,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2023-11-19 02:52:18,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:52:19,007 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:52:19,007 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2023-11-19 02:52:19,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/data/9170c8ed2/d48186c5bb2e49dd9a5e43575ec01844/FLAG4b358fe75 [2023-11-19 02:52:19,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/data/9170c8ed2/d48186c5bb2e49dd9a5e43575ec01844 [2023-11-19 02:52:19,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:52:19,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:52:19,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:19,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:52:19,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:52:19,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aecf96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19, skipping insertion in model container [2023-11-19 02:52:19,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:52:19,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:19,280 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:52:19,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:19,320 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:52:19,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19 WrapperNode [2023-11-19 02:52:19,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:19,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:19,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:52:19,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:52:19,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,361 INFO L138 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 113 [2023-11-19 02:52:19,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:19,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:52:19,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:52:19,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:52:19,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:52:19,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:52:19,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:52:19,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:52:19,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:19,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:52:19,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:52:19,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:52:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:52:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 02:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:52:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 02:52:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:52:19,587 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:52:19,589 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:52:19,781 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:52:19,824 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:52:19,825 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:52:19,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:19 BoogieIcfgContainer [2023-11-19 02:52:19,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:52:19,830 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:52:19,831 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:52:19,840 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:52:19,841 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:19" (1/1) ... [2023-11-19 02:52:19,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:52:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:19,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-11-19 02:52:19,902 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-11-19 02:52:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:52:19,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:20,181 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 02:52:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-11-19 02:52:20,259 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-11-19 02:52:20,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:52:20,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:20,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:20,362 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 02:52:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2023-11-19 02:52:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-11-19 02:52:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:52:20,402 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:20,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2023-11-19 02:52:20,583 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2023-11-19 02:52:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:52:20,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:20,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2023-11-19 02:52:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-11-19 02:52:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:52:20,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:20,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:52:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-19 02:52:21,138 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-19 02:52:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:52:21,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2023-11-19 02:52:21,288 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-11-19 02:52:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:52:21,289 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:21,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2023-11-19 02:52:21,451 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2023-11-19 02:52:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:52:21,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2023-11-19 02:52:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-11-19 02:52:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 02:52:21,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:21,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:52:21,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2023-11-19 02:52:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2023-11-19 02:52:21,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:52:21,851 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-19 02:52:21,860 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 02:52:22,012 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:52:22,017 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:52:22,017 INFO L560 CodeCheckObserver]: Invariant with dag size 28 [2023-11-19 02:52:22,022 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:52:22,022 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:52:22,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:52:22 ImpRootNode [2023-11-19 02:52:22,023 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:52:22,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:52:22,024 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:52:22,024 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:52:22,025 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:19" (3/4) ... [2023-11-19 02:52:22,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:52:22,036 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 02:52:22,036 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 02:52:22,037 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:52:22,037 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:52:22,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:52:22,140 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:52:22,140 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:52:22,141 INFO L158 Benchmark]: Toolchain (without parser) took 3107.15ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 91.1MB in the end (delta: 29.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,141 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:52:22,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.02ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 109.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.95ms. Allocated memory is still 151.0MB. Free memory was 109.1MB in the beginning and 107.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,143 INFO L158 Benchmark]: Boogie Preprocessor took 29.86ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,143 INFO L158 Benchmark]: RCFGBuilder took 436.36ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 93.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,144 INFO L158 Benchmark]: CodeCheck took 2192.42ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 96.3MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:52:22,144 INFO L158 Benchmark]: Witness Printer took 116.88ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 91.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:52:22,146 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 556 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 146 mSDtfsCounter, 556 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1049 GetRequests, 973 SyntacticMatches, 40 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 10/153 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: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: 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: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((3 < main__i) && (main__i <= 4)) || ((main__i <= 1) && (1 <= main__i))) || ((main__i <= 3) && (2 < main__i))) || ((1 < main__i) && (main__i <= 2))) || ((main__i <= 5) && (4 < main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.02ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 109.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.95ms. Allocated memory is still 151.0MB. Free memory was 109.1MB in the beginning and 107.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.86ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.36ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 93.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2192.42ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 96.3MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.88ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 91.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:52:22,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02573-3ed0-416c-953f-364d73a78eeb/bin/ukojak-verify-G8NBE6pJGL/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