./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 cf1a7837 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_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV --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-cf1a783 [2023-11-11 23:42:00,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:42:01,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:42:01,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:42:01,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:42:01,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:42:01,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:42:01,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:42:01,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:42:01,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:42:01,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:42:01,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:42:01,126 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:42:01,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:42:01,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:42:01,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:42:01,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:42:01,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:42:01,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:42:01,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:42:01,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:42:01,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:42:01,133 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:42:01,135 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:42:01,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:42:01,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:42:01,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:42:01,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:42:01,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:42:01,138 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:42:01,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:42:01,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:42:01,140 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_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 [2023-11-11 23:42:01,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:42:01,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:42:01,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:42:01,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:42:01,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:42:01,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-11 23:42:04,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:42:04,788 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:42:04,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2023-11-11 23:42:04,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/data/c9f63220d/ee6abf2a5dfb4aad8580ccf3313d47e8/FLAGdb35c571b [2023-11-11 23:42:04,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/data/c9f63220d/ee6abf2a5dfb4aad8580ccf3313d47e8 [2023-11-11 23:42:04,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:42:04,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:42:04,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:42:04,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:42:04,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:42:04,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:42:04" (1/1) ... [2023-11-11 23:42:04,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2072a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:04, skipping insertion in model container [2023-11-11 23:42:04,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:42:04" (1/1) ... [2023-11-11 23:42:04,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:42:05,048 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_7c005215-a0b6-4aac-99c2-4b8423863fc0/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-11 23:42:05,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:42:05,071 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:42:05,082 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_7c005215-a0b6-4aac-99c2-4b8423863fc0/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i[1051,1064] [2023-11-11 23:42:05,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:42:05,103 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:42:05,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05 WrapperNode [2023-11-11 23:42:05,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:42:05,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:42:05,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:42:05,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:42:05,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,142 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-11 23:42:05,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:42:05,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:42:05,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:42:05,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:42:05,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:42:05,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:42:05,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:42:05,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:42:05,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:42:05,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:42:05,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:42:05,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c005215-a0b6-4aac-99c2-4b8423863fc0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:42:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:42:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:42:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:42:05,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:42:05,325 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:42:05,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:42:05,555 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:42:05,612 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:42:05,613 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:42:05,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:42:05 BoogieIcfgContainer [2023-11-11 23:42:05,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:42:05,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:42:05,617 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:42:05,626 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:42:05,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:42:05" (1/1) ... [2023-11-11 23:42:05,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:42:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-11 23:42:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-11 23:42:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:42:05,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:05,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:08,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-11 23:42:08,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:42:15,682 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-11 23:42:25,268 WARN L293 SmtUtils]: Spent 8.81s 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) [2023-11-11 23:42:33,871 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)