./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 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_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/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_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:04:26,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:04:26,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:04:26,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:04:26,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:04:26,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:04:26,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:04:26,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:04:26,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:04:26,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:04:26,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:04:26,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:04:26,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:04:26,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:04:26,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:04:26,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:04:26,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:04:26,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:04:26,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:04:26,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:04:26,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:04:26,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:04:26,747 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:04:26,748 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:04:26,748 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:04:26,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:04:26,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:04:26,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:04:26,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:04:26,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:04:26,751 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:04:26,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:04:26,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:04:26,752 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_591a2737-2e26-4504-9f19-ea1bac13290f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 [2023-11-19 04:04:27,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:04:27,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:04:27,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:04:27,059 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:04:27,059 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:04:27,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-19 04:04:30,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:04:30,469 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:04:30,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-19 04:04:30,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/data/94d9ed0ca/f1d6dccb78af4567a89bb06e3824b034/FLAGcdc66f17a [2023-11-19 04:04:30,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/data/94d9ed0ca/f1d6dccb78af4567a89bb06e3824b034 [2023-11-19 04:04:30,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:04:30,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:04:30,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:04:30,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:04:30,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:04:30,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c31e423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30, skipping insertion in model container [2023-11-19 04:04:30,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:04:30,691 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_591a2737-2e26-4504-9f19-ea1bac13290f/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-19 04:04:30,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:04:30,714 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:04:30,723 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_591a2737-2e26-4504-9f19-ea1bac13290f/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-19 04:04:30,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:04:30,743 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:04:30,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30 WrapperNode [2023-11-19 04:04:30,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:04:30,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:04:30,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:04:30,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:04:30,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,800 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-19 04:04:30,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:04:30,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:04:30,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:04:30,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:04:30,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:04:30,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:04:30,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:04:30,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:04:30,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:04:30" (1/1) ... [2023-11-19 04:04:30,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:04:30,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:04:30,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:04:30,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591a2737-2e26-4504-9f19-ea1bac13290f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:04:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:04:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:04:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:04:30,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:04:31,024 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:04:31,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:04:31,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:04:31,297 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:04:31,297 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:04:31,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:04:31 BoogieIcfgContainer [2023-11-19 04:04:31,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:04:31,314 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:04:31,314 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:04:31,325 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:04:31,326 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:04:31" (1/1) ... [2023-11-19 04:04:31,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:04:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:04:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 04:04:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 04:04:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:04:31,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:04:31,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:04:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:04:31,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 04:04:31,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:04:53,122 WARN L293 SmtUtils]: Spent 5.56s 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) [2023-11-19 04:05:03,583 WARN L293 SmtUtils]: Spent 10.28s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 04:05:12,527 WARN L293 SmtUtils]: Spent 5.33s 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) [2023-11-19 04:05:23,248 WARN L293 SmtUtils]: Spent 10.72s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 04:05:31,684 WARN L293 SmtUtils]: Spent 5.53s 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)