./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/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 d03c67e233c08f2056b22cded14e60e5b8002325e3ed3bc9a6e35392b69429b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:06:35,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:06:35,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:06:35,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:06:35,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:06:35,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:06:35,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:06:35,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:06:35,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:06:35,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:06:35,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:06:35,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:06:35,881 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:06:35,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:06:35,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:06:35,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:06:35,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:06:35,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:06:35,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:06:35,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:06:35,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:06:35,886 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:06:35,887 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:06:35,887 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:06:35,887 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:06:35,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:06:35,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:06:35,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:06:35,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:06:35,890 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:06:35,890 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:06:35,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:06:35,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:06:35,891 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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d03c67e233c08f2056b22cded14e60e5b8002325e3ed3bc9a6e35392b69429b7 [2023-12-02 22:06:36,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:06:36,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:06:36,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:06:36,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:06:36,107 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:06:36,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c [2023-12-02 22:06:38,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:06:39,076 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:06:39,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c [2023-12-02 22:06:39,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/data/48fa9cfd6/1e37d7aea0c144c2824dca1fe8f117b4/FLAGb075ae851 [2023-12-02 22:06:39,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/data/48fa9cfd6/1e37d7aea0c144c2824dca1fe8f117b4 [2023-12-02 22:06:39,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:06:39,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:06:39,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:06:39,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:06:39,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:06:39,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd111ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39, skipping insertion in model container [2023-12-02 22:06:39,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,496 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:06:39,623 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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c[525,538] [2023-12-02 22:06:39,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:06:39,647 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:06:39,659 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_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound20.c[525,538] [2023-12-02 22:06:39,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:06:39,676 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:06:39,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39 WrapperNode [2023-12-02 22:06:39,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:06:39,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:06:39,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:06:39,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:06:39,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,706 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2023-12-02 22:06:39,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:06:39,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:06:39,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:06:39,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:06:39,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:06:39,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:06:39,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:06:39,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:06:39,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:39" (1/1) ... [2023-12-02 22:06:39,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:06:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:06:39,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:06:39,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:06:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:06:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 22:06:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 22:06:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:06:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:06:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:06:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 22:06:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 22:06:39,854 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:06:39,856 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:06:39,974 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:06:40,004 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:06:40,004 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:06:40,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:40 BoogieIcfgContainer [2023-12-02 22:06:40,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:06:40,007 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:06:40,007 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:06:40,017 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:06:40,018 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:40" (1/1) ... [2023-12-02 22:06:40,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:06:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-02 22:06:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-02 22:06:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:06:40,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:40,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:06:40,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:06:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:06:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-12-02 22:06:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-12-02 22:06:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 22:06:40,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:40,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:06:40,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:06:40,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:06:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2023-12-02 22:06:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2023-12-02 22:06:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 22:06:40,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:40,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:06:40,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:06:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:06:51,610 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 [] [2023-12-02 22:06:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 46 transitions. [2023-12-02 22:06:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-12-02 22:06:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 22:06:51,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:51,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:06:51,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:06:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:07:13,189 WARN L293 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 23 DAG size of output: 23 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:07:40,724 WARN L293 SmtUtils]: Spent 16.71s on a formula simplification. DAG size of input: 25 DAG size of output: 21 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:07:54,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 22:07:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 22 states and 29 transitions. [2023-12-02 22:07:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-12-02 22:07:56,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 22:07:56,045 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-12-02 22:07:56,052 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 22:08:06,126 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L 649] de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.computeHoareAnnotation) [2023-12-02 22:08:06,131 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 22:08:06,134 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 22:08:06,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:08:06 ImpRootNode [2023-12-02 22:08:06,135 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:08:06,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:08:06,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:08:06,136 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:08:06,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:40" (3/4) ... [2023-12-02 22:08:06,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 22:08:06,140 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 22:08:06,140 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 22:08:06,143 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 22:08:06,143 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 22:08:06,143 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 22:08:06,144 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 22:08:06,211 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 22:08:06,212 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 22:08:06,212 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:08:06,213 INFO L158 Benchmark]: Toolchain (without parser) took 86740.56ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 105.9MB in the beginning and 47.6MB in the end (delta: 58.3MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,213 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:08:06,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.13ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.17ms. Allocated memory is still 140.5MB. Free memory was 95.3MB in the beginning and 93.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:08:06,215 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 140.5MB. Free memory was 93.9MB in the beginning and 92.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,215 INFO L158 Benchmark]: RCFGBuilder took 281.14ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,216 INFO L158 Benchmark]: CodeCheck took 86127.59ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 81.8MB in the beginning and 51.8MB in the end (delta: 30.0MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,216 INFO L158 Benchmark]: Witness Printer took 76.66ms. Allocated memory is still 182.5MB. Free memory was 51.8MB in the beginning and 47.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 22:08:06,222 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 23.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 23.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 72 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 636 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 61.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 79 ConstructedInterpolants, 5 QuantifiedInterpolants, 400 SizeOfPredicates, 9 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 22/29 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: 17]: 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: 45]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.13ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.17ms. Allocated memory is still 140.5MB. Free memory was 95.3MB in the beginning and 93.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 140.5MB. Free memory was 93.9MB in the beginning and 92.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 281.14ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 86127.59ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 81.8MB in the beginning and 51.8MB in the end (delta: 30.0MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 76.66ms. Allocated memory is still 182.5MB. Free memory was 51.8MB in the beginning and 47.6MB 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 22:08:06,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a42a186-0ebd-4a2f-a6c6-b9469c95c92c/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