./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/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_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/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_fab90fde-b30f-44a3-b912-a167404a5293/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 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:39:52,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:39:52,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:39:52,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:39:52,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:39:52,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:39:52,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:39:52,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:39:52,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:39:52,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:39:52,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:39:52,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:39:52,459 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:39:52,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:39:52,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:39:52,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:39:52,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:39:52,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:39:52,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:39:52,464 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:39:52,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:39:52,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:39:52,466 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:39:52,467 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:39:52,467 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:39:52,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:39:52,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:39:52,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:39:52,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:39:52,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:39:52,472 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:39:52,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:39:52,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:39:52,473 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_fab90fde-b30f-44a3-b912-a167404a5293/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 [2023-11-19 02:39:52,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:39:52,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:39:52,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:39:52,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:39:52,834 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:39:52,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2023-11-19 02:39:56,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:39:56,357 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:39:56,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2023-11-19 02:39:56,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/data/3bc13254d/e9acd908999248c183b5141d719ce050/FLAG5436fc5c6 [2023-11-19 02:39:56,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/data/3bc13254d/e9acd908999248c183b5141d719ce050 [2023-11-19 02:39:56,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:39:56,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:39:56,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:39:56,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:39:56,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:39:56,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de5135c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56, skipping insertion in model container [2023-11-19 02:39:56,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:39:56,630 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_fab90fde-b30f-44a3-b912-a167404a5293/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2023-11-19 02:39:56,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:39:56,663 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:39:56,675 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_fab90fde-b30f-44a3-b912-a167404a5293/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2023-11-19 02:39:56,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:39:56,700 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:39:56,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56 WrapperNode [2023-11-19 02:39:56,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:39:56,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:39:56,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:39:56,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:39:56,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,745 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-11-19 02:39:56,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:39:56,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:39:56,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:39:56,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:39:56,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:39:56,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:39:56,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:39:56,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:39:56,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:56" (1/1) ... [2023-11-19 02:39:56,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:39:56,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:39:56,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:39:56,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:39:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:39:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:39:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:39:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:39:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:39:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:39:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:39:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:39:56,926 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:39:56,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:39:57,084 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:39:57,115 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:39:57,115 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:39:57,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:57 BoogieIcfgContainer [2023-11-19 02:39:57,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:39:57,122 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:39:57,122 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:39:57,135 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:39:57,135 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:57" (1/1) ... [2023-11-19 02:39:57,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:39:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-19 02:39:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-19 02:39:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:39:57,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:57,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:39:57,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:39:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 02:39:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 02:39:57,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:39:57,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:57,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:57,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:39:57,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:39:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 02:39:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 02:39:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:39:57,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:57,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:39:57,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:39:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-19 02:39:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-19 02:39:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:39:57,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:57,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:58,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:39:58,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:39:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-19 02:39:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-19 02:39:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:39:58,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:58,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:58,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:39:58,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:39:58,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-19 02:39:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-19 02:39:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:39:58,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:58,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:39:58,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 02:39:59,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-19 02:39:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-19 02:39:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 02:39:59,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:59,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:59,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 02:39:59,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:39:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:39:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2023-11-19 02:39:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-11-19 02:39:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 02:39:59,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:39:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:39:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:39:59,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 02:39:59,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:39:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:40:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:40:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 68 transitions. [2023-11-19 02:40:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2023-11-19 02:40:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 02:40:00,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:40:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:40:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:40:00,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 02:40:00,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:40:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 02:40:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:40:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 31 states and 42 transitions. [2023-11-19 02:40:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-11-19 02:40:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:40:01,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:40:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:40:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:40:02,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 02:40:02,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:40:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 02:40:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:40:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 27 states and 37 transitions. [2023-11-19 02:40:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2023-11-19 02:40:03,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:40:03,331 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 02:40:03,341 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:40:03,610 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2023-11-19 02:40:03,617 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:40:03,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:40:03 ImpRootNode [2023-11-19 02:40:03,618 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:40:03,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:40:03,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:40:03,619 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:40:03,620 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:57" (3/4) ... [2023-11-19 02:40:03,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:40:03,625 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 02:40:03,625 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 02:40:03,629 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 02:40:03,630 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 02:40:03,630 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:40:03,630 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:40:03,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:40:03,722 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:40:03,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:40:03,723 INFO L158 Benchmark]: Toolchain (without parser) took 7334.45ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 127.8MB in the beginning and 90.8MB in the end (delta: 37.0MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,724 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:40:03,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.45ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 117.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.98ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 115.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:40:03,725 INFO L158 Benchmark]: Boogie Preprocessor took 24.21ms. Allocated memory is still 172.0MB. Free memory was 115.9MB in the beginning and 114.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,726 INFO L158 Benchmark]: RCFGBuilder took 347.59ms. Allocated memory is still 172.0MB. Free memory was 114.5MB in the beginning and 102.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,727 INFO L158 Benchmark]: CodeCheck took 6495.88ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 102.6MB in the beginning and 95.0MB in the end (delta: 7.6MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,727 INFO L158 Benchmark]: Witness Printer took 103.90ms. Allocated memory is still 207.6MB. Free memory was 95.0MB in the beginning and 90.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:40:03,730 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 520 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 444 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 241 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 698 IncrementalHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 241 mSolverCounterUnsat, 286 mSDtfsCounter, 698 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1921 GetRequests, 1794 SyntacticMatches, 31 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3719 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 681 SizeOfPredicates, 12 NumberOfNonLiveVariables, 797 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 132/155 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: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((!(((2 == y) && (x == 17))) || ((2 <= k) && (c <= 2))) || !((((0 <= k) && (2 <= c)) && (k <= 2)))) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.45ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 117.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.98ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 115.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.21ms. Allocated memory is still 172.0MB. Free memory was 115.9MB in the beginning and 114.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.59ms. Allocated memory is still 172.0MB. Free memory was 114.5MB in the beginning and 102.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6495.88ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 102.6MB in the beginning and 95.0MB in the end (delta: 7.6MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. * Witness Printer took 103.90ms. Allocated memory is still 207.6MB. Free memory was 95.0MB in the beginning and 90.8MB 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! [2023-11-19 02:40:03,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab90fde-b30f-44a3-b912-a167404a5293/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE