./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/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_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2178c6f728031bcf04d558c33456922a938f3195f7de6fe54a28dcd39328e684 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:59:51,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:59:51,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 01:59:51,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:59:51,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:59:51,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:59:51,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:59:51,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:59:51,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:59:51,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:59:51,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:59:51,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:59:51,905 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:59:51,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:59:51,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:59:51,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:59:51,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:59:51,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:59:51,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:59:51,909 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:59:51,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:59:51,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:59:51,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:59:51,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:59:51,912 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:59:51,913 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:59:51,913 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:59:51,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:59:51,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:59:51,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:59:51,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:59:51,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:59:51,916 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:59:51,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:59:51,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:59:51,917 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_65774054-8f32-489f-9f64-304991044058/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2178c6f728031bcf04d558c33456922a938f3195f7de6fe54a28dcd39328e684 [2023-12-03 01:59:52,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:59:52,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:59:52,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:59:52,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:59:52,202 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:59:52,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2023-12-03 01:59:54,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:59:55,157 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:59:55,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2023-12-03 01:59:55,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/data/8c68422b0/c8485faec3c34fd4aa96a14d5817ae52/FLAG106d3553e [2023-12-03 01:59:55,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/data/8c68422b0/c8485faec3c34fd4aa96a14d5817ae52 [2023-12-03 01:59:55,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:59:55,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:59:55,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:55,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:59:55,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:59:55,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c63138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55, skipping insertion in model container [2023-12-03 01:59:55,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:59:55,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:55,383 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:59:55,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:55,410 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:59:55,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55 WrapperNode [2023-12-03 01:59:55,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:55,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:55,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:59:55,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:59:55,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,444 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-12-03 01:59:55,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:55,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:59:55,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:59:55,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:59:55,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:59:55,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:59:55,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:59:55,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:59:55,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:59:55,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:59:55,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:59:55,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:59:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:59:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:59:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:59:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:59:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:59:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:59:55,594 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:59:55,596 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:59:55,723 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:59:55,753 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:59:55,753 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:59:55,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:55 BoogieIcfgContainer [2023-12-03 01:59:55,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:59:55,756 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:59:55,756 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:59:55,764 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:59:55,764 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:55" (1/1) ... [2023-12-03 01:59:55,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:59:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-12-03 01:59:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-03 01:59:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 01:59:55,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:55,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-12-03 01:59:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-12-03 01:59:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:59:56,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:56,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:56,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-12-03 01:59:56,178 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-03 01:59:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 01:59:56,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:56,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:59:56,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:56,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:56,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2023-12-03 01:59:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-12-03 01:59:56,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 01:59:56,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:56,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:59:56,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:57,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2023-12-03 01:59:57,046 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2023-12-03 01:59:57,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 01:59:57,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:57,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:57,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 01:59:57,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 36 transitions. [2023-12-03 01:59:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-12-03 01:59:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 01:59:57,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:57,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:59:57,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 48 transitions. [2023-12-03 01:59:57,548 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-12-03 01:59:57,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:59:57,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:57,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:59:57,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:57,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 43 states and 60 transitions. [2023-12-03 01:59:57,916 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-12-03 01:59:57,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 01:59:57,917 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:57,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:59:57,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 51 states and 73 transitions. [2023-12-03 01:59:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2023-12-03 01:59:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 01:59:58,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:58,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:58,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 01:59:58,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 59 states and 85 transitions. [2023-12-03 01:59:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2023-12-03 01:59:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 01:59:59,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:59,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:59,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 01:59:59,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 133 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:00:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 55 states and 77 transitions. [2023-12-03 02:00:00,702 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2023-12-03 02:00:00,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:00:00,703 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-12-03 02:00:00,713 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-03 02:00:00,806 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:00:00,810 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:00:00,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:00:00 ImpRootNode [2023-12-03 02:00:00,811 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:00:00,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:00:00,812 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:00:00,812 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:00:00,813 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:55" (3/4) ... [2023-12-03 02:00:00,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:00:00,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 02:00:00,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 02:00:00,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 02:00:00,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 02:00:00,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:00:00,924 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:00:00,925 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:00:00,925 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:00:00,926 INFO L158 Benchmark]: Toolchain (without parser) took 5741.44ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 120.9MB in the beginning and 93.9MB in the end (delta: 27.0MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,927 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:00:00,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.03ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 109.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.50ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 108.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,928 INFO L158 Benchmark]: Boogie Preprocessor took 20.10ms. Allocated memory is still 163.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 984.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:00:00,929 INFO L158 Benchmark]: RCFGBuilder took 289.04ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 96.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,930 INFO L158 Benchmark]: CodeCheck took 5055.36ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 96.3MB in the beginning and 99.1MB in the end (delta: -2.9MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,930 INFO L158 Benchmark]: Witness Printer took 113.37ms. Allocated memory is still 209.7MB. Free memory was 98.1MB in the beginning and 93.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 02:00:00,933 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 391 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 558 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 370 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 963 IncrementalHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 370 mSolverCounterUnsat, 242 mSDtfsCounter, 963 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2003 GetRequests, 1745 SyntacticMatches, 148 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6033 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 48 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 174/357 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: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.03ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 109.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.50ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 108.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.10ms. Allocated memory is still 163.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 984.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.04ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 96.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 5055.36ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 96.3MB in the beginning and 99.1MB in the end (delta: -2.9MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. * Witness Printer took 113.37ms. Allocated memory is still 209.7MB. Free memory was 98.1MB in the beginning and 93.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 02:00:00,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65774054-8f32-489f-9f64-304991044058/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