./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 9bd2c7ff 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_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/running_example.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL --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-9bd2c7f [2023-11-19 03:38:15,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:38:15,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:38:15,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:38:15,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:38:15,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:38:15,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:38:15,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:38:15,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:38:15,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:38:15,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:38:15,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:38:15,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:38:15,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:38:15,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:38:15,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:38:15,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:38:15,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:38:15,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:38:15,932 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:38:15,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:38:15,933 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:38:15,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:38:15,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:38:15,935 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:38:15,935 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:38:15,936 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:38:15,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:38:15,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:15,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:38:15,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:38:15,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:38:15,939 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:38:15,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:38:15,940 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:38:15,941 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_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318c7aa22aeecc0174739978e9fb15d261281003454726c8705d95a97106063f [2023-11-19 03:38:16,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:38:16,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:38:16,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:38:16,369 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:38:16,370 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:38:16,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/heap-data/running_example.i [2023-11-19 03:38:20,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:38:20,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:38:20,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/sv-benchmarks/c/heap-data/running_example.i [2023-11-19 03:38:20,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/data/f60cd2050/fbc9b963e8b546c7be263cd587968cfd/FLAG618978a34 [2023-11-19 03:38:20,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/data/f60cd2050/fbc9b963e8b546c7be263cd587968cfd [2023-11-19 03:38:20,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:38:20,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:38:20,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:20,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:38:20,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:38:20,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:20" (1/1) ... [2023-11-19 03:38:20,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a432a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:20, skipping insertion in model container [2023-11-19 03:38:20,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:20" (1/1) ... [2023-11-19 03:38:20,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:38:21,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:21,102 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:38:21,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:21,190 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:38:21,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21 WrapperNode [2023-11-19 03:38:21,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:21,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:21,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:38:21,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:38:21,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,241 INFO L138 Inliner]: procedures = 121, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-19 03:38:21,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:21,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:38:21,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:38:21,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:38:21,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:38:21,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:38:21,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:38:21,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:38:21,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:21,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:38:21,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:38:21,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:38:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:38:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:38:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:38:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:38:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:38:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:38:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:38:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:38:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:38:21,557 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:38:21,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:38:21,800 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:38:21,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:38:21,871 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 03:38:21,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:21 BoogieIcfgContainer [2023-11-19 03:38:21,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:38:21,878 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:38:21,879 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:38:21,893 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:38:21,893 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:21" (1/1) ... [2023-11-19 03:38:21,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:38:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-19 03:38:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-19 03:38:21,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:38:21,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:21,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-19 03:38:22,461 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-19 03:38:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:38:22,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:22,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2023-11-19 03:38:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2023-11-19 03:38:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:38:23,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:23,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2023-11-19 03:38:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2023-11-19 03:38:23,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:38:23,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2023-11-19 03:38:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2023-11-19 03:38:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:38:23,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:23,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2023-11-19 03:38:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2023-11-19 03:38:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:38:24,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:24,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:38:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2023-11-19 03:38:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2023-11-19 03:38:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:38:24,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:24,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:38:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 51 transitions. [2023-11-19 03:38:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2023-11-19 03:38:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:38:24,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:24,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:38:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2023-11-19 03:38:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2023-11-19 03:38:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:38:25,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:25,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:38:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2023-11-19 03:38:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2023-11-19 03:38:26,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:38:26,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:38:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2023-11-19 03:38:26,655 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2023-11-19 03:38:26,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:38:26,656 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 03:38:26,669 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 03:38:26,822 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:38:26,829 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:38:26,829 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:38:26,829 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:38:26,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:38:26 ImpRootNode [2023-11-19 03:38:26,832 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:38:26,833 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:38:26,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:38:26,834 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:38:26,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:21" (3/4) ... [2023-11-19 03:38:26,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:38:26,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-19 03:38:26,858 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 03:38:26,858 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:38:26,859 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 03:38:27,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:38:27,033 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:38:27,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:38:27,034 INFO L158 Benchmark]: Toolchain (without parser) took 6368.74ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 110.8MB in the beginning and 116.9MB in the end (delta: -6.1MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,035 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:27,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.63ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 94.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.61ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,037 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:27,038 INFO L158 Benchmark]: RCFGBuilder took 598.87ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 74.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,039 INFO L158 Benchmark]: CodeCheck took 4954.23ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 74.2MB in the beginning and 122.1MB in the end (delta: -47.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,039 INFO L158 Benchmark]: Witness Printer took 200.17ms. Allocated memory is still 213.9MB. Free memory was 122.1MB in the beginning and 116.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:38:27,046 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: 4.7s, 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, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 354 SdHoareTripleChecker+Invalid, 1.7s 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, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s 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 0.40ms. Allocated memory is still 151.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.63ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 94.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.61ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 598.87ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 74.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 4954.23ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 74.2MB in the beginning and 122.1MB in the end (delta: -47.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 200.17ms. Allocated memory is still 213.9MB. Free memory was 122.1MB in the beginning and 116.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:38:27,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b462233e-0b71-4170-b6fd-1bfff8162e34/bin/ukojak-verify-G8NBE6pJGL/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