./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/heap-data/running_example.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/running_example.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2 --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 318c7aa22aeecc0174739978e9fb15d261281003454726c8705d95a97106063f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:27:45,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:27:46,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:27:46,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:27:46,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:27:46,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:27:46,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:27:46,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:27:46,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:27:46,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:27:46,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:27:46,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:27:46,126 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:27:46,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:27:46,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:27:46,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:27:46,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:27:46,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:27:46,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:27:46,130 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:27:46,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:27:46,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:27:46,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:27:46,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:27:46,134 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:27:46,135 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:27:46,135 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:27:46,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:27:46,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:27:46,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:27:46,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:27:46,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:27:46,139 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:27:46,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:27:46,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:27:46,140 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_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318c7aa22aeecc0174739978e9fb15d261281003454726c8705d95a97106063f [2023-11-21 18:27:46,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:27:46,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:27:46,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:27:46,444 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:27:46,445 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:27:46,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/heap-data/running_example.i [2023-11-21 18:27:50,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:27:50,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:27:50,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/sv-benchmarks/c/heap-data/running_example.i [2023-11-21 18:27:50,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/data/d0fe918a2/183ac89babb849c0a14852f2fa535d6a/FLAG67f1e79e6 [2023-11-21 18:27:50,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/data/d0fe918a2/183ac89babb849c0a14852f2fa535d6a [2023-11-21 18:27:50,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:27:50,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:27:50,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:27:50,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:27:50,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:27:50,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:27:50" (1/1) ... [2023-11-21 18:27:50,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eeb56df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:50, skipping insertion in model container [2023-11-21 18:27:50,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:27:50" (1/1) ... [2023-11-21 18:27:50,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:27:51,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:27:51,036 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:27:51,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:27:51,182 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:27:51,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51 WrapperNode [2023-11-21 18:27:51,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:27:51,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:27:51,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:27:51,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:27:51,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,282 INFO L138 Inliner]: procedures = 121, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-21 18:27:51,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:27:51,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:27:51,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:27:51,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:27:51,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:27:51,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:27:51,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:27:51,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:27:51,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:51" (1/1) ... [2023-11-21 18:27:51,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:27:51,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:27:51,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:27:51,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:27:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:27:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:27:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:27:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:27:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:27:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:27:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:27:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:27:51,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:27:51,627 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:27:51,630 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:27:51,966 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:27:52,023 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:27:52,023 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 18:27:52,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:52 BoogieIcfgContainer [2023-11-21 18:27:52,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:27:52,027 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:27:52,027 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:27:52,039 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:27:52,040 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:52" (1/1) ... [2023-11-21 18:27:52,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:27:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:52,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-21 18:27:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-21 18:27:52,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:27:52,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:52,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:27:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:52,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-21 18:27:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-21 18:27:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:27:52,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:52,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:27:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:53,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2023-11-21 18:27:53,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2023-11-21 18:27:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:27:53,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:27:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2023-11-21 18:27:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2023-11-21 18:27:53,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:27:53,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:53,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:27:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:53,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2023-11-21 18:27:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2023-11-21 18:27:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:27:53,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:53,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:27:54,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:54,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2023-11-21 18:27:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2023-11-21 18:27:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:27:54,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:54,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:27:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2023-11-21 18:27:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2023-11-21 18:27:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:27:54,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:54,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:27:54,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 51 transitions. [2023-11-21 18:27:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2023-11-21 18:27:54,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:27:54,648 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:54,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:27:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2023-11-21 18:27:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2023-11-21 18:27:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:27:55,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:27:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2023-11-21 18:27:55,646 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2023-11-21 18:27:55,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:27:55,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:55,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:27:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:27:56,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2023-11-21 18:27:56,006 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2023-11-21 18:27:56,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:27:56,007 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-21 18:27:56,016 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:27:56,109 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:27:56,114 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:27:56,115 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:27:56,115 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:27:56,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:27:56 ImpRootNode [2023-11-21 18:27:56,116 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:27:56,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:27:56,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:27:56,117 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:27:56,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:52" (3/4) ... [2023-11-21 18:27:56,120 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:27:56,128 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-21 18:27:56,129 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:27:56,129 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:27:56,130 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:27:56,261 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:27:56,261 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:27:56,262 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:27:56,263 INFO L158 Benchmark]: Toolchain (without parser) took 5771.97ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 71.9MB in the beginning and 70.8MB in the end (delta: 1.1MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,264 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:27:56,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.76ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 54.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.08ms. Allocated memory is still 117.4MB. Free memory was 54.7MB in the beginning and 52.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,270 INFO L158 Benchmark]: Boogie Preprocessor took 65.83ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 51.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,271 INFO L158 Benchmark]: RCFGBuilder took 675.70ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 51.3MB in the beginning and 111.8MB in the end (delta: -60.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,271 INFO L158 Benchmark]: CodeCheck took 4088.68ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 76.0MB in the end (delta: 35.8MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,272 INFO L158 Benchmark]: Witness Printer took 145.64ms. Allocated memory is still 148.9MB. Free memory was 75.0MB in the beginning and 70.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:27:56,275 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 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 418 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 354 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 174 mSDtfsCounter, 612 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 890 GetRequests, 824 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 15/15 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: 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 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.76ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 54.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.08ms. Allocated memory is still 117.4MB. Free memory was 54.7MB in the beginning and 52.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.83ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 51.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.70ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 51.3MB in the beginning and 111.8MB in the end (delta: -60.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * CodeCheck took 4088.68ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 76.0MB in the end (delta: 35.8MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Witness Printer took 145.64ms. Allocated memory is still 148.9MB. Free memory was 75.0MB in the beginning and 70.8MB 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! [2023-11-21 18:27:56,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ce2318-e790-4911-9a7d-f2445cdf2dc1/bin/ukojak-verify-i0I2FZA1j2/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