./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk --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 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:57:19,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:57:19,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-09 00:57:19,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:57:19,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:57:19,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:57:19,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:57:19,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:57:19,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:57:19,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:57:19,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:57:19,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:57:19,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:57:19,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:57:19,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:57:19,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:57:19,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:57:19,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:57:19,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:57:19,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:57:19,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:57:19,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:57:19,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:57:19,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:57:19,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:57:19,789 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:57:19,789 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:57:19,789 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:57:19,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:57:19,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:57:19,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:57:19,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:57:19,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:57:19,803 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:57:19,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:57:19,803 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_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2024-11-09 00:57:20,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:57:20,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:57:20,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:57:20,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:57:20,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:57:20,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/float-benchs/interpolation.c Unable to find full path for "g++" [2024-11-09 00:57:22,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:57:22,381 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:57:22,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/sv-benchmarks/c/float-benchs/interpolation.c [2024-11-09 00:57:22,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/data/73fa03678/b46639152f994f6395c4477e87c62f67/FLAG091849e7d [2024-11-09 00:57:22,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/data/73fa03678/b46639152f994f6395c4477e87c62f67 [2024-11-09 00:57:22,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:57:22,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:57:22,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:57:22,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:57:22,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:57:22,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:57:22" (1/1) ... [2024-11-09 00:57:22,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcd7bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:22, skipping insertion in model container [2024-11-09 00:57:22,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:57:22" (1/1) ... [2024-11-09 00:57:22,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:57:23,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:57:23,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:57:23,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:57:23,137 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:57:23,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23 WrapperNode [2024-11-09 00:57:23,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:57:23,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:57:23,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:57:23,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:57:23,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,170 INFO L138 Inliner]: procedures = 18, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2024-11-09 00:57:23,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:57:23,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:57:23,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:57:23,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:57:23,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:57:23,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:57:23,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:57:23,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:57:23,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:57:23,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:57:23,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:57:23,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:57:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:57:23,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:57:23,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:57:23,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 00:57:23,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:57:23,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:57:23,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 00:57:23,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:57:23,333 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:57:23,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:57:23,485 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-09 00:57:23,485 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:57:23,585 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:57:23,585 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:57:23,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:57:23 BoogieIcfgContainer [2024-11-09 00:57:23,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:57:23,587 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:57:23,587 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:57:23,604 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:57:23,605 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:57:23" (1/1) ... [2024-11-09 00:57:23,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:57:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2024-11-09 00:57:23,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2024-11-09 00:57:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:57:23,681 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-09 00:57:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-09 00:57:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:57:24,156 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2024-11-09 00:57:24,287 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-11-09 00:57:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:57:24,287 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:24,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:24,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-09 00:57:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-09 00:57:24,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:57:24,722 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2024-11-09 00:57:25,076 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-11-09 00:57:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:57:25,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:25,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:25,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-09 00:57:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-09 00:57:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:57:25,372 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:25,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2024-11-09 00:57:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-09 00:57:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:57:25,797 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-11-09 00:57:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-09 00:57:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 00:57:26,190 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:26,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-09 00:57:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-09 00:57:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 00:57:26,678 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:57:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:57:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:57:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:57:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:57:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2024-11-09 00:57:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-09 00:57:27,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:57:27,184 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-09 00:57:27,194 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-09 00:57:27,549 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-11-09 00:57:27,550 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-11-09 00:57:27,550 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:57:27,550 INFO L77 FloydHoareUtils]: At program point L21-1(lines 21 23) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-09 00:57:27,551 INFO L77 FloydHoareUtils]: At program point L21-3(line 21) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (<= 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (= |ULTIMATE.start_main_#t~post9#1| 0) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-09 00:57:27,551 INFO L77 FloydHoareUtils]: At program point L21-4(line 21) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (<= 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (= |ULTIMATE.start_main_#t~post9#1| 0) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-09 00:57:27,551 INFO L77 FloydHoareUtils]: At program point L21-5(lines 21 23) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-09 00:57:27,552 INFO L77 FloydHoareUtils]: At program point L21-6(lines 21 23) the Hoare annotation is: true [2024-11-09 00:57:27,552 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:57:27,552 INFO L77 FloydHoareUtils]: At program point L22(line 22) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-09 00:57:27,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:57:27 ImpRootNode [2024-11-09 00:57:27,571 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:57:27,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:57:27,572 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:57:27,573 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:57:27,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:57:23" (3/4) ... [2024-11-09 00:57:27,576 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:57:27,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-09 00:57:27,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 00:57:27,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:57:27,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:57:27,691 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:57:27,691 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:57:27,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:57:27,692 INFO L158 Benchmark]: Toolchain (without parser) took 4914.76ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 112.8MB in the beginning and 92.7MB in the end (delta: 20.0MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,693 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:57:27,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.51ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 99.7MB in the end (delta: 12.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.13ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 98.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,694 INFO L158 Benchmark]: Boogie Preprocessor took 29.79ms. Allocated memory is still 151.0MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,694 INFO L158 Benchmark]: RCFGBuilder took 384.43ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 80.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,697 INFO L158 Benchmark]: CodeCheck took 3984.60ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 80.8MB in the beginning and 96.9MB in the end (delta: -16.1MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,698 INFO L158 Benchmark]: Witness Printer took 119.52ms. Allocated memory is still 226.5MB. Free memory was 96.9MB in the beginning and 92.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:57:27,700 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 237 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 791 IncrementalHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 237 mSolverCounterUnsat, 64 mSDtfsCounter, 791 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1040 GetRequests, 924 SyntacticMatches, 62 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 4/192 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 21]: Loop Invariant Derived loop invariant: ((((((i == 0) || ((i <= 3) && (2 < i))) || ((3 < i) && (i <= 4))) || ((1 <= i) && (i <= 1))) || ((4 < i) && (i <= 5))) || ((1 < i) && (i <= 2))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.51ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 99.7MB in the end (delta: 12.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.13ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 98.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.79ms. Allocated memory is still 151.0MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.43ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 80.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 3984.60ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 80.8MB in the beginning and 96.9MB in the end (delta: -16.1MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Witness Printer took 119.52ms. Allocated memory is still 226.5MB. Free memory was 96.9MB in the beginning and 92.7MB 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! [2024-11-09 00:57:27,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729b9fc1-f5b5-4d70-b319-47beb060e606/bin/ukojak-verify-ImItNfHLgk/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