./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/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 0affde029ae482b9d2ea4727838aac0bedbe77b9d2e3e7a12b56be9a4d0491c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:37:12,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:37:12,968 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:37:12,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:37:12,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:37:12,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:37:12,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:37:12,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:37:12,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:37:12,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:37:13,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:37:13,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:37:13,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:37:13,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:37:13,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:37:13,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:37:13,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:37:13,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:37:13,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:37:13,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:37:13,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:37:13,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:37:13,006 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:37:13,006 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:37:13,007 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:37:13,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:37:13,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:37:13,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:37:13,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:37:13,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:37:13,009 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:37:13,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:37:13,010 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:37:13,010 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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0affde029ae482b9d2ea4727838aac0bedbe77b9d2e3e7a12b56be9a4d0491c8 [2023-12-02 23:37:13,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:37:13,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:37:13,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:37:13,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:37:13,269 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:37:13,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2023-12-02 23:37:16,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:37:16,246 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:37:16,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2023-12-02 23:37:16,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/data/bb12bb531/5ff242fafdfc46d5a36e6d57fc0c8cad/FLAG0857328e7 [2023-12-02 23:37:16,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/data/bb12bb531/5ff242fafdfc46d5a36e6d57fc0c8cad [2023-12-02 23:37:16,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:37:16,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:37:16,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:37:16,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:37:16,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:37:16,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6509ffc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16, skipping insertion in model container [2023-12-02 23:37:16,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:37:16,413 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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2023-12-02 23:37:16,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:37:16,435 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:37:16,444 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_d2d29cd5-9a57-4325-ba99-b24800bbcce3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2023-12-02 23:37:16,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:37:16,463 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:37:16,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16 WrapperNode [2023-12-02 23:37:16,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:37:16,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:37:16,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:37:16,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:37:16,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,490 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-02 23:37:16,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:37:16,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:37:16,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:37:16,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:37:16,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:37:16,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:37:16,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:37:16,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:37:16,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:37:16,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:37:16,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:37:16,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:37:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:37:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:37:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:37:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:37:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:37:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:37:16,647 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:37:16,649 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:37:16,758 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:37:16,800 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:37:16,800 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:37:16,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:16 BoogieIcfgContainer [2023-12-02 23:37:16,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:37:16,803 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:37:16,804 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:37:16,814 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:37:16,814 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:16" (1/1) ... [2023-12-02 23:37:16,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:37:16,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-12-02 23:37:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-02 23:37:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:37:16,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:16,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:16,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:37:16,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-12-02 23:37:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-02 23:37:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:37:17,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:17,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:37:17,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-02 23:37:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-02 23:37:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:37:17,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:17,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:17,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:37:17,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-12-02 23:37:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-02 23:37:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:37:17,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:17,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:37:17,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:37:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-12-02 23:37:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-12-02 23:37:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 23:37:18,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:18,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:18,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:37:18,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:37:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-12-02 23:37:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-12-02 23:37:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 23:37:18,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:18,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:18,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 23:37:18,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:37:19,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:19,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2023-12-02 23:37:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2023-12-02 23:37:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:37:19,436 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:19,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:37:19,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 23:37:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-12-02 23:37:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-02 23:37:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:37:20,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:20,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:37:20,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 25 proven. 68 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:37:21,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2023-12-02 23:37:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-12-02 23:37:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:37:21,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:21,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:21,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 23:37:21,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 28 proven. 81 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 23:37:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2023-12-02 23:37:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-12-02 23:37:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:37:22,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:22,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:37:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:22,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 23:37:22,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 149 proven. 12 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-02 23:37:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 34 states and 50 transitions. [2023-12-02 23:37:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2023-12-02 23:37:24,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:37:24,755 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-12-02 23:37:24,763 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 23:37:24,867 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:37:24,871 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:37:24,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:37:24 ImpRootNode [2023-12-02 23:37:24,871 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:37:24,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:37:24,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:37:24,872 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:37:24,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:16" (3/4) ... [2023-12-02 23:37:24,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:37:24,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 23:37:24,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 23:37:24,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 23:37:24,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:37:24,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:37:24,951 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:37:24,952 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:37:24,952 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:37:24,953 INFO L158 Benchmark]: Toolchain (without parser) took 8682.22ms. Allocated memory was 180.4MB in the beginning and 253.8MB in the end (delta: 73.4MB). Free memory was 132.5MB in the beginning and 118.6MB in the end (delta: 13.9MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,953 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 180.4MB. Free memory was 122.5MB in the beginning and 122.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:37:24,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.44ms. Allocated memory is still 180.4MB. Free memory was 132.5MB in the beginning and 121.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.67ms. Allocated memory is still 180.4MB. Free memory was 121.9MB in the beginning and 120.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,955 INFO L158 Benchmark]: Boogie Preprocessor took 15.43ms. Allocated memory is still 180.4MB. Free memory was 120.4MB in the beginning and 119.5MB in the end (delta: 888.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:37:24,955 INFO L158 Benchmark]: RCFGBuilder took 295.44ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 107.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,956 INFO L158 Benchmark]: CodeCheck took 8067.74ms. Allocated memory was 180.4MB in the beginning and 253.8MB in the end (delta: 73.4MB). Free memory was 107.4MB in the beginning and 122.8MB in the end (delta: -15.4MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,956 INFO L158 Benchmark]: Witness Printer took 80.31ms. Allocated memory is still 253.8MB. Free memory was 122.8MB in the beginning and 118.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:37:24,958 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: 7.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 106 mSDtfsCounter, 862 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2184 GetRequests, 1989 SyntacticMatches, 101 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3770 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 308 ConstructedInterpolants, 2 QuantifiedInterpolants, 1382 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1022 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 464/734 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: 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 180.4MB. Free memory was 122.5MB in the beginning and 122.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.44ms. Allocated memory is still 180.4MB. Free memory was 132.5MB in the beginning and 121.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.67ms. Allocated memory is still 180.4MB. Free memory was 121.9MB in the beginning and 120.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.43ms. Allocated memory is still 180.4MB. Free memory was 120.4MB in the beginning and 119.5MB in the end (delta: 888.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.44ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 107.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 8067.74ms. Allocated memory was 180.4MB in the beginning and 253.8MB in the end (delta: 73.4MB). Free memory was 107.4MB in the beginning and 122.8MB in the end (delta: -15.4MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Witness Printer took 80.31ms. Allocated memory is still 253.8MB. Free memory was 122.8MB in the beginning and 118.6MB 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! [2023-12-02 23:37:24,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d29cd5-9a57-4325-ba99-b24800bbcce3/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