./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9 --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 40704d62e6828e524eeb24a4dc1771a4d2719fc47e6facdd014c5940cef1d5d0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:38:26,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:38:26,919 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:38:26,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:38:26,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:38:26,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:38:26,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:38:26,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:38:26,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:38:26,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:38:26,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:38:26,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:38:26,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:38:26,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:38:26,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:38:26,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:38:26,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:38:26,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:38:26,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:38:26,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:38:26,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:38:26,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:38:26,955 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:38:26,955 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:38:26,956 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:38:26,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:38:26,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:38:26,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:38:26,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:38:26,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:38:26,958 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:38:26,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:38:26,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:38:26,959 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_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40704d62e6828e524eeb24a4dc1771a4d2719fc47e6facdd014c5940cef1d5d0 [2023-12-03 00:38:27,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:38:27,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:38:27,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:38:27,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:38:27,186 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:38:27,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2023-12-03 00:38:29,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:38:30,085 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:38:30,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2023-12-03 00:38:30,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/data/91b7783fa/2a6c5956be7548f0b25b1dfd3c7fe75a/FLAGd31429b5e [2023-12-03 00:38:30,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/data/91b7783fa/2a6c5956be7548f0b25b1dfd3c7fe75a [2023-12-03 00:38:30,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:38:30,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:38:30,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:38:30,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:38:30,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:38:30,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30, skipping insertion in model container [2023-12-03 00:38:30,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,135 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:38:30,254 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_08986b1e-59ed-4091-bff5-6f34a1b87873/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2023-12-03 00:38:30,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:38:30,282 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:38:30,291 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_08986b1e-59ed-4091-bff5-6f34a1b87873/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2023-12-03 00:38:30,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:38:30,311 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:38:30,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30 WrapperNode [2023-12-03 00:38:30,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:38:30,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:38:30,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:38:30,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:38:30,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,340 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-12-03 00:38:30,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:38:30,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:38:30,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:38:30,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:38:30,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:38:30,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:38:30,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:38:30,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:38:30,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:38:30,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:38:30,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:38:30,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:38:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:38:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 00:38:30,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 00:38:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:38:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:38:30,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 00:38:30,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 00:38:30,494 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:38:30,496 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:38:30,624 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:38:30,661 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:38:30,662 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:38:30,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:30 BoogieIcfgContainer [2023-12-03 00:38:30,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:38:30,665 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:38:30,665 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:38:30,676 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:38:30,676 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:30" (1/1) ... [2023-12-03 00:38:30,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:38:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:38:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-03 00:38:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 00:38:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 00:38:30,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:38:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:38:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:38:30,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:38:30,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:38:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 00:38:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:38:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 33 transitions. [2023-12-03 00:38:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-12-03 00:38:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 00:38:31,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:38:31,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:38:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:38:31,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:38:31,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:38:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 00:38:33,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:38:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 39 transitions. [2023-12-03 00:38:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-12-03 00:38:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 00:38:33,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:38:33,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:38:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:38:33,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:38:33,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:38:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 00:39:03,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-03 00:39:03,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:39:03,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 19 states and 22 transitions. [2023-12-03 00:39:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-12-03 00:39:03,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:39:03,622 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-12-03 00:39:03,631 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 00:39:03,674 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:39:03,677 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:39:03,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:39:03 ImpRootNode [2023-12-03 00:39:03,678 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:39:03,679 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:39:03,679 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:39:03,679 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:39:03,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:30" (3/4) ... [2023-12-03 00:39:03,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:39:03,684 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-03 00:39:03,684 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 00:39:03,688 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-03 00:39:03,688 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 00:39:03,689 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:39:03,689 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:39:03,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:39:03,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:39:03,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:39:03,772 INFO L158 Benchmark]: Toolchain (without parser) took 33663.39ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 133.6MB in the beginning and 152.5MB in the end (delta: -18.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-12-03 00:39:03,773 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:39:03,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.22ms. Allocated memory is still 163.6MB. Free memory was 133.3MB in the beginning and 122.4MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 00:39:03,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.12ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 120.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:39:03,775 INFO L158 Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 120.0MB in the end (delta: 870.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:39:03,775 INFO L158 Benchmark]: RCFGBuilder took 302.50ms. Allocated memory is still 163.6MB. Free memory was 120.0MB in the beginning and 107.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 00:39:03,776 INFO L158 Benchmark]: CodeCheck took 33013.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 107.4MB in the beginning and 156.6MB in the end (delta: -49.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:39:03,776 INFO L158 Benchmark]: Witness Printer took 93.04ms. Allocated memory is still 197.1MB. Free memory was 156.6MB in the beginning and 152.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:39:03,779 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 32.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 64 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 599 GetRequests, 558 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 1 QuantifiedInterpolants, 518 SizeOfPredicates, 15 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 39/42 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: 14]: 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.22ms. Allocated memory is still 163.6MB. Free memory was 133.3MB in the beginning and 122.4MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.12ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 120.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.73ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 120.0MB in the end (delta: 870.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.50ms. Allocated memory is still 163.6MB. Free memory was 120.0MB in the beginning and 107.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 33013.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 107.4MB in the beginning and 156.6MB in the end (delta: -49.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.04ms. Allocated memory is still 197.1MB. Free memory was 156.6MB in the beginning and 152.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:39:03,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08986b1e-59ed-4091-bff5-6f34a1b87873/bin/ukojak-verify-Qdu7aM0XO9/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