./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC --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 1df58a12292e53aa25870e709e17978d63a0e61d4dd56fb439981d66ecb6b925 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:04:13,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:04:13,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:04:13,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:04:13,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:04:13,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:04:13,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:04:13,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:04:13,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:04:13,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:04:13,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:04:13,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:04:13,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:04:13,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:04:13,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:04:13,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:04:13,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:04:13,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:04:13,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:04:13,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:04:13,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:04:13,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:04:13,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:04:13,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:04:13,769 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:04:13,769 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:04:13,770 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:04:13,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:04:13,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:13,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:04:13,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:04:13,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:04:13,773 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:04:13,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:04:13,774 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:04:13,774 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_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df58a12292e53aa25870e709e17978d63a0e61d4dd56fb439981d66ecb6b925 [2023-11-23 20:04:14,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:04:14,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:04:14,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:04:14,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:04:14,107 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:04:14,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2023-11-23 20:04:17,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:04:17,579 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:04:17,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2023-11-23 20:04:17,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/data/1d3f4f7de/d1ccdc40903643cda0eaa91fe3a50bfd/FLAG507e42020 [2023-11-23 20:04:17,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/data/1d3f4f7de/d1ccdc40903643cda0eaa91fe3a50bfd [2023-11-23 20:04:17,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:04:17,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:04:17,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:17,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:04:17,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:04:17,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:17" (1/1) ... [2023-11-23 20:04:17,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35615c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:17, skipping insertion in model container [2023-11-23 20:04:17,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:17" (1/1) ... [2023-11-23 20:04:17,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:04:18,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:18,178 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:04:18,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:18,272 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:18,280 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:04:18,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18 WrapperNode [2023-11-23 20:04:18,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:18,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:18,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:04:18,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:04:18,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,329 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 31 [2023-11-23 20:04:18,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:18,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:04:18,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:04:18,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:04:18,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:04:18,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:04:18,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:04:18,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:04:18,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:18,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:04:18,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:04:18,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:04:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:04:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:04:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:04:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:04:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:04:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:04:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:04:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:04:18,601 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:04:18,606 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:04:18,788 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:04:18,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:04:18,863 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:04:18,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18 BoogieIcfgContainer [2023-11-23 20:04:18,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:04:18,866 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:04:18,867 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:04:18,878 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:04:18,878 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:04:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:04:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:04:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:04:18,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:04:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-23 20:04:19,503 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:04:19,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:04:19,504 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:04:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-23 20:04:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-23 20:04:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:04:19,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:04:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2023-11-23 20:04:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-11-23 20:04:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:04:20,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:20,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:04:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2023-11-23 20:04:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-11-23 20:04:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:04:20,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:04:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 30 transitions. [2023-11-23 20:04:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-11-23 20:04:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:04:20,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:04:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 37 transitions. [2023-11-23 20:04:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2023-11-23 20:04:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:04:21,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:04:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 44 transitions. [2023-11-23 20:04:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-23 20:04:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:04:21,683 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:21,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 20:04:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 51 transitions. [2023-11-23 20:04:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2023-11-23 20:04:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 20:04:22,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:04:22,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 58 transitions. [2023-11-23 20:04:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2023-11-23 20:04:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 20:04:22,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:04:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 49 states and 65 transitions. [2023-11-23 20:04:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-23 20:04:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:04:23,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:23,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 20:04:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 54 states and 72 transitions. [2023-11-23 20:04:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2023-11-23 20:04:24,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 20:04:24,370 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:24,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 20:04:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 59 states and 79 transitions. [2023-11-23 20:04:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2023-11-23 20:04:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 20:04:25,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:25,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-23 20:04:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 86 transitions. [2023-11-23 20:04:26,219 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2023-11-23 20:04:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 20:04:26,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:26,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 229 proven. 46 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-23 20:04:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:35,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 59 states and 79 transitions. [2023-11-23 20:04:35,935 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2023-11-23 20:04:35,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:04:35,937 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2023-11-23 20:04:35,945 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:04:36,185 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:04:36,190 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:04:36,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:04:36 ImpRootNode [2023-11-23 20:04:36,190 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:04:36,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:04:36,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:04:36,191 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:04:36,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18" (3/4) ... [2023-11-23 20:04:36,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:04:36,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-23 20:04:36,201 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 20:04:36,201 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:04:36,202 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:04:36,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:04:36,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:04:36,304 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:04:36,304 INFO L158 Benchmark]: Toolchain (without parser) took 18684.95ms. Allocated memory was 138.4MB in the beginning and 302.0MB in the end (delta: 163.6MB). Free memory was 92.7MB in the beginning and 205.6MB in the end (delta: -112.9MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,305 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:36,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.24ms. Allocated memory is still 138.4MB. Free memory was 92.2MB in the beginning and 70.2MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.98ms. Allocated memory is still 138.4MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,313 INFO L158 Benchmark]: Boogie Preprocessor took 28.44ms. Allocated memory is still 138.4MB. Free memory was 68.1MB in the beginning and 67.1MB in the end (delta: 990.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:36,313 INFO L158 Benchmark]: RCFGBuilder took 505.89ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 67.1MB in the beginning and 143.8MB in the end (delta: -76.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,314 INFO L158 Benchmark]: CodeCheck took 17323.99ms. Allocated memory was 174.1MB in the beginning and 302.0MB in the end (delta: 127.9MB). Free memory was 143.8MB in the beginning and 209.8MB in the end (delta: -66.0MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,314 INFO L158 Benchmark]: Witness Printer took 112.81ms. Allocated memory is still 302.0MB. Free memory was 209.8MB in the beginning and 205.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:04:36,317 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: 17.0s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 682 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 421 mSDsluCounter, 528 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 186 mSDsCounter, 644 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2169 IncrementalHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 644 mSolverCounterUnsat, 342 mSDtfsCounter, 2169 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3934 GetRequests, 3532 SyntacticMatches, 192 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18333 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 571 ConstructedInterpolants, 0 QuantifiedInterpolants, 1423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 825/1709 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: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: 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: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.24ms. Allocated memory is still 138.4MB. Free memory was 92.2MB in the beginning and 70.2MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.98ms. Allocated memory is still 138.4MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.44ms. Allocated memory is still 138.4MB. Free memory was 68.1MB in the beginning and 67.1MB in the end (delta: 990.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 505.89ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 67.1MB in the beginning and 143.8MB in the end (delta: -76.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * CodeCheck took 17323.99ms. Allocated memory was 174.1MB in the beginning and 302.0MB in the end (delta: 127.9MB). Free memory was 143.8MB in the beginning and 209.8MB in the end (delta: -66.0MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Witness Printer took 112.81ms. Allocated memory is still 302.0MB. Free memory was 209.8MB in the beginning and 205.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:04:36,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53600adf-1949-42a4-90c0-64b6ad21463f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE