./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:47:46,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:47:46,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-21 18:47:46,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:47:46,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:47:47,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:47:47,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:47:47,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:47:47,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:47:47,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:47:47,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:47:47,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:47:47,021 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:47:47,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:47:47,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:47:47,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:47:47,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:47:47,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:47:47,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:47:47,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:47:47,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:47:47,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:47:47,028 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:47:47,029 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:47:47,029 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:47:47,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:47:47,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:47:47,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:47:47,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:47:47,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:47:47,033 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:47:47,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:47:47,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:47:47,034 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_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 [2023-11-21 18:47:47,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:47:47,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:47:47,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:47:47,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:47:47,407 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:47:47,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-21 18:47:50,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:47:51,037 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:47:51,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-21 18:47:51,054 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/data/cbe2f19e1/05fed570c9824cf48e8ff6b387f827b3/FLAG20056c229 [2023-11-21 18:47:51,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/data/cbe2f19e1/05fed570c9824cf48e8ff6b387f827b3 [2023-11-21 18:47:51,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:47:51,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:47:51,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:47:51,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:47:51,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:47:51,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec78d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51, skipping insertion in model container [2023-11-21 18:47:51,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,115 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:47:51,347 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-21 18:47:51,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:47:51,397 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:47:51,417 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-21 18:47:51,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:47:51,452 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:47:51,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51 WrapperNode [2023-11-21 18:47:51,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:47:51,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:47:51,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:47:51,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:47:51,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,514 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-21 18:47:51,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:47:51,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:47:51,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:47:51,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:47:51,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:47:51,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:47:51,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:47:51,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:47:51,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:47:51" (1/1) ... [2023-11-21 18:47:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:47:51,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:47:51,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:47:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eead9cf-a2ad-4488-b0ba-42f29247da3c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:47:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:47:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:47:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:47:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:47:51,740 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:47:51,743 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:47:51,972 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:47:52,134 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:47:52,134 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:47:52,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:47:52 BoogieIcfgContainer [2023-11-21 18:47:52,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:47:52,137 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:47:52,137 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:47:52,152 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:47:52,152 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:47:52" (1/1) ... [2023-11-21 18:47:52,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:47:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:47:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-21 18:47:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-21 18:47:52,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:47:52,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:47:52,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:47:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:47:52,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 18:47:52,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:48:25,897 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)