./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/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_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/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_e1d3d55b-67d9-436b-a846-3704cef9c5b8/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 fc3b64420d7066ddae343a06976c60db80b11c9064160fc3a579002ff9231727 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:16:31,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:16:31,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:16:31,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:16:31,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:16:31,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:16:31,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:16:31,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:16:31,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:16:31,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:16:31,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:16:31,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:16:31,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:16:31,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:16:31,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:16:31,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:16:31,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:16:31,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:16:31,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:16:31,575 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:16:31,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:16:31,577 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:16:31,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:16:31,578 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:16:31,578 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:16:31,579 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:16:31,580 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:16:31,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:16:31,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:31,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:16:31,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:16:31,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:16:31,583 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:16:31,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:16:31,584 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:16:31,584 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_e1d3d55b-67d9-436b-a846-3704cef9c5b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc3b64420d7066ddae343a06976c60db80b11c9064160fc3a579002ff9231727 [2023-11-23 20:16:31,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:16:31,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:16:31,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:16:31,874 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:16:31,875 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:16:31,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/ldv-regression/test05.c [2023-11-23 20:16:35,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:16:35,397 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:16:35,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/sv-benchmarks/c/ldv-regression/test05.c [2023-11-23 20:16:35,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/data/233913c26/2a4cd2f08ed8463d9dae88f5c2eceb1a/FLAG918fc9b53 [2023-11-23 20:16:35,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/data/233913c26/2a4cd2f08ed8463d9dae88f5c2eceb1a [2023-11-23 20:16:35,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:16:35,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:16:35,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:35,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:16:35,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:16:35,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e0510b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35, skipping insertion in model container [2023-11-23 20:16:35,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,476 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:16:35,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:35,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:16:35,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:35,696 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:16:35,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35 WrapperNode [2023-11-23 20:16:35,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:35,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:35,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:16:35,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:16:35,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,759 INFO L138 Inliner]: procedures = 16, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2023-11-23 20:16:35,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:35,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:16:35,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:16:35,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:16:35,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:16:35,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:16:35,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:16:35,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:16:35,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:35" (1/1) ... [2023-11-23 20:16:35,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:16:35,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:16:35,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:16:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:16:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:16:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:16:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:16:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:16:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:16:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:16:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:16:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:16:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:16:36,013 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:16:36,015 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:16:36,220 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:16:36,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:16:36,356 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:16:36,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:36 BoogieIcfgContainer [2023-11-23 20:16:36,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:16:36,360 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:16:36,360 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:16:36,373 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:16:36,374 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:36" (1/1) ... [2023-11-23 20:16:36,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:16:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-23 20:16:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-23 20:16:36,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 20:16:36,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:16:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-23 20:16:36,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-23 20:16:36,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 20:16:36,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:16:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-23 20:16:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-23 20:16:37,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:16:37,193 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-11-23 20:16:37,204 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:16:37,232 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:37,236 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-23 20:16:37,240 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-23 20:16:37,242 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:37,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:16:37 ImpRootNode [2023-11-23 20:16:37,243 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:16:37,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:16:37,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:16:37,245 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:16:37,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:36" (3/4) ... [2023-11-23 20:16:37,248 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:16:37,263 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-23 20:16:37,263 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 20:16:37,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:16:37,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:16:37,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:16:37,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:16:37,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:16:37,379 INFO L158 Benchmark]: Toolchain (without parser) took 1946.45ms. Allocated memory was 123.7MB in the beginning and 165.7MB in the end (delta: 41.9MB). Free memory was 92.3MB in the beginning and 95.0MB in the end (delta: -2.7MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,379 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:16:37,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.43ms. Allocated memory is still 123.7MB. Free memory was 92.3MB in the beginning and 82.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.13ms. Allocated memory is still 123.7MB. Free memory was 82.0MB in the beginning and 80.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,382 INFO L158 Benchmark]: Boogie Preprocessor took 61.86ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 941.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:16:37,382 INFO L158 Benchmark]: RCFGBuilder took 535.45ms. Allocated memory is still 123.7MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,383 INFO L158 Benchmark]: CodeCheck took 883.69ms. Allocated memory was 123.7MB in the beginning and 165.7MB in the end (delta: 41.9MB). Free memory was 60.1MB in the beginning and 100.2MB in the end (delta: -40.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,383 INFO L158 Benchmark]: Witness Printer took 133.59ms. Allocated memory is still 165.7MB. Free memory was 100.2MB in the beginning and 95.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:16:37,385 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.43ms. Allocated memory is still 123.7MB. Free memory was 92.3MB in the beginning and 82.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.13ms. Allocated memory is still 123.7MB. Free memory was 82.0MB in the beginning and 80.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.86ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 941.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.45ms. Allocated memory is still 123.7MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 883.69ms. Allocated memory was 123.7MB in the beginning and 165.7MB in the end (delta: 41.9MB). Free memory was 60.1MB in the beginning and 100.2MB in the end (delta: -40.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 133.59ms. Allocated memory is still 165.7MB. Free memory was 100.2MB in the beginning and 95.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated RESULT: Ultimate proved your program to be correct! [2023-11-23 20:16:37,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d3d55b-67d9-436b-a846-3704cef9c5b8/bin/ukojak-verify-1t5iHCbJaC/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