./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk --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 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:20:50,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:20:50,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:20:50,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:20:50,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:20:50,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:20:50,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:20:50,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:20:50,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:20:50,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:20:50,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:20:50,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:20:50,619 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:20:50,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:20:50,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:20:50,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:20:50,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:20:50,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:20:50,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:20:50,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:20:50,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:20:50,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:20:50,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:20:50,627 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:20:50,628 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:20:50,628 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:20:50,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:20:50,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:20:50,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:20:50,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:20:50,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:20:50,630 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:20:50,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:20:50,630 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_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 [2024-11-09 00:20:50,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:20:50,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:20:50,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:20:50,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:20:50,972 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:20:50,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c Unable to find full path for "g++" [2024-11-09 00:20:52,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:20:53,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:20:53,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2024-11-09 00:20:53,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/data/002ff9955/8567fea1be774f8f919e45e39bf4251e/FLAG4699086fa [2024-11-09 00:20:53,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/data/002ff9955/8567fea1be774f8f919e45e39bf4251e [2024-11-09 00:20:53,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:20:53,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:20:53,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:20:53,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:20:53,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:20:53,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38eaec65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53, skipping insertion in model container [2024-11-09 00:20:53,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:20:53,417 WARN L250 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_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2024-11-09 00:20:53,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:20:53,446 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:20:53,459 WARN L250 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_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2024-11-09 00:20:53,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:20:53,480 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:20:53,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53 WrapperNode [2024-11-09 00:20:53,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:20:53,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:20:53,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:20:53,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:20:53,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,512 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-11-09 00:20:53,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:20:53,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:20:53,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:20:53,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:20:53,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:20:53,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:20:53,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:20:53,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:20:53,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:20:53,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:20:53,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:20:53,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:20:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:20:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:20:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:20:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:20:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:20:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:20:53,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:20:53,675 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:20:53,790 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 00:20:53,790 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:20:53,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:20:53,867 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:20:53,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:20:53 BoogieIcfgContainer [2024-11-09 00:20:53,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:20:53,872 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:20:53,872 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:20:53,889 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:20:53,889 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:20:53" (1/1) ... [2024-11-09 00:20:53,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:20:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2024-11-09 00:20:53,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2024-11-09 00:20:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:20:53,976 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:53,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:54,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 00:20:54,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:20:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:54,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2024-11-09 00:20:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-11-09 00:20:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:20:54,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:20:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-09 00:20:55,172 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-09 00:20:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:20:55,173 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:55,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:55,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 00:20:55,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:20:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-09 00:20:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-09 00:20:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 00:20:55,730 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:55,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:55,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 00:20:55,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 00:20:56,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2024-11-09 00:20:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-09 00:20:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 00:20:56,208 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:56,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:56,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 00:20:56,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 00:20:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2024-11-09 00:20:56,681 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-09 00:20:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 00:20:56,682 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:56,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 00:20:56,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:56,880 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 00:20:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2024-11-09 00:20:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2024-11-09 00:20:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 00:20:57,254 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:57,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:20:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:57,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 00:20:57,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:20:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 00:20:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:20:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2024-11-09 00:20:57,950 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-11-09 00:20:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 00:20:57,952 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:20:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:20:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:20:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 54 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 00:21:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:21:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 26 states and 36 transitions. [2024-11-09 00:21:00,060 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-09 00:21:00,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:21:00,061 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-09 00:21:00,073 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:21:00,357 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:21:00,357 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 36) the Hoare annotation is: true [2024-11-09 00:21:00,357 INFO L77 FloydHoareUtils]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-11-09 00:21:00,358 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:21:00,358 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: true [2024-11-09 00:21:00,358 INFO L77 FloydHoareUtils]: At program point L28-1(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-11-09 00:21:00,359 INFO L77 FloydHoareUtils]: At program point L37(line 37) the Hoare annotation is: true [2024-11-09 00:21:00,359 INFO L77 FloydHoareUtils]: At program point L11(lines 11 12) the Hoare annotation is: true [2024-11-09 00:21:00,359 INFO L77 FloydHoareUtils]: At program point L10(lines 10 13) the Hoare annotation is: (or (= __VERIFIER_assert_~cond 0) (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 1))) [2024-11-09 00:21:00,359 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-09 00:21:00,360 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (not (= |__VERIFIER_assert_#in~cond| 1)))) [2024-11-09 00:21:00,360 INFO L77 FloydHoareUtils]: At program point L10-2(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-09 00:21:00,360 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2024-11-09 00:21:00,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:21:00 ImpRootNode [2024-11-09 00:21:00,379 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:21:00,380 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:21:00,380 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:21:00,381 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:21:00,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:20:53" (3/4) ... [2024-11-09 00:21:00,384 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:21:00,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 00:21:00,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 00:21:00,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 00:21:00,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:21:00,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:21:00,484 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:21:00,485 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:21:00,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:21:00,486 INFO L158 Benchmark]: Toolchain (without parser) took 7330.49ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 61.3MB in the beginning and 143.9MB in the end (delta: -82.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:21:00,486 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:21:00,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.09ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 118.1MB in the end (delta: -57.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-09 00:21:00,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.65ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 116.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:21:00,488 INFO L158 Benchmark]: Boogie Preprocessor took 23.97ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 116.0MB in the end (delta: 897.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:21:00,492 INFO L158 Benchmark]: RCFGBuilder took 332.56ms. Allocated memory is still 159.4MB. Free memory was 116.0MB in the beginning and 104.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:21:00,492 INFO L158 Benchmark]: CodeCheck took 6508.05ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 104.0MB in the beginning and 148.1MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:21:00,493 INFO L158 Benchmark]: Witness Printer took 105.15ms. Allocated memory is still 192.9MB. Free memory was 148.1MB in the beginning and 143.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:21:00,495 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 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 352 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 696 IncrementalHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 352 mSolverCounterUnsat, 84 mSDtfsCounter, 696 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1415 GetRequests, 1269 SyntacticMatches, 50 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3410 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 661 SizeOfPredicates, 6 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 225/331 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 - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((cond == 0) || (cond == 1)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.09ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 118.1MB in the end (delta: -57.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.65ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 116.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.97ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 116.0MB in the end (delta: 897.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.56ms. Allocated memory is still 159.4MB. Free memory was 116.0MB in the beginning and 104.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 6508.05ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 104.0MB in the beginning and 148.1MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 105.15ms. Allocated memory is still 192.9MB. Free memory was 148.1MB in the beginning and 143.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:21:00,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8b6ff9-bbba-4078-88a3-586b5e0f5c6e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE