./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/gcd1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/gcd1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk --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 64bit --witnessprinter.graph.data.programhash dbeb9f947cec8628096a17298becb379047c46a0d943e4ea9c16db72c8a208b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:46:59,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:46:59,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:46:59,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:46:59,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:46:59,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:46:59,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:46:59,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:46:59,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:46:59,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:46:59,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:46:59,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:46:59,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:46:59,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:46:59,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:46:59,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:46:59,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:46:59,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:46:59,526 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:46:59,526 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:46:59,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:46:59,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:46:59,527 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:46:59,527 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:46:59,528 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:46:59,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:46:59,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:46:59,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:46:59,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:46:59,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:46:59,530 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:46:59,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:46:59,533 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_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbeb9f947cec8628096a17298becb379047c46a0d943e4ea9c16db72c8a208b4 [2024-11-09 00:46:59,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:46:59,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:46:59,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:46:59,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:46:59,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:46:59,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-memory-alloca/gcd1-alloca.i Unable to find full path for "g++" [2024-11-09 00:47:01,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:47:02,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:47:02,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/sv-benchmarks/c/termination-memory-alloca/gcd1-alloca.i [2024-11-09 00:47:02,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/data/2ab62821b/8ccc46e562764765a87f3169134481ef/FLAGe1d64f75d [2024-11-09 00:47:02,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/data/2ab62821b/8ccc46e562764765a87f3169134481ef [2024-11-09 00:47:02,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:47:02,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:47:02,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:47:02,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:47:02,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:47:02,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296f982d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02, skipping insertion in model container [2024-11-09 00:47:02,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:47:02,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:47:02,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:47:02,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:47:02,729 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:47:02,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02 WrapperNode [2024-11-09 00:47:02,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:47:02,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:47:02,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:47:02,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:47:02,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,786 INFO L138 Inliner]: procedures = 111, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2024-11-09 00:47:02,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:47:02,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:47:02,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:47:02,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:47:02,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:47:02,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:47:02,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:47:02,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:47:02,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:02" (1/1) ... [2024-11-09 00:47:02,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:47:02,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:47:02,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:47:02,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:47:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:47:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:47:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:47:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:47:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:47:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:47:03,007 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:47:03,010 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:47:03,180 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 00:47:03,181 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:47:03,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:47:03,222 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 00:47:03,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:47:03 BoogieIcfgContainer [2024-11-09 00:47:03,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:47:03,224 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:47:03,224 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:47:03,238 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:47:03,238 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:47:03" (1/1) ... [2024-11-09 00:47:03,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:47:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:47:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-11-09 00:47:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-09 00:47:03,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 00:47:03,306 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:47:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:47:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:47:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:47:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:47:03,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-09 00:47:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-09 00:47:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:47:03,693 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:47:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:47:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:47:03,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:47:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:47:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:47:03,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:47:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:47:03,869 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:47:03,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:47:03 ImpRootNode [2024-11-09 00:47:03,896 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:47:03,897 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:47:03,897 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:47:03,897 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:47:03,898 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:47:03" (3/4) ... [2024-11-09 00:47:03,899 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:47:03,953 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:47:03,954 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:47:03,954 INFO L158 Benchmark]: Toolchain (without parser) took 1880.23ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 60.5MB in the beginning and 124.8MB in the end (delta: -64.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:47:03,955 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:47:03,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.29ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 113.4MB in the end (delta: -53.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 00:47:03,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.20ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:47:03,957 INFO L158 Benchmark]: Boogie Preprocessor took 39.78ms. Allocated memory is still 159.4MB. Free memory was 111.3MB in the beginning and 110.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:47:03,957 INFO L158 Benchmark]: RCFGBuilder took 395.35ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 95.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:47:03,958 INFO L158 Benchmark]: CodeCheck took 672.29ms. Allocated memory is still 159.4MB. Free memory was 95.0MB in the beginning and 126.9MB in the end (delta: -31.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:47:03,958 INFO L158 Benchmark]: Witness Printer took 56.74ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 124.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:47:03,960 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, 23 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 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, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - CounterExampleResult [Line: 553]: integer overflow possible integer overflow possible We found a FailurePath: [L565] int x,y; [L566] x = __VERIFIER_nondet_int() [L567] y = __VERIFIER_nondet_int() [L568] CALL gcd(x,y) [L548] int* x_ref = __builtin_alloca (sizeof(int)); [L549] int* y_ref = __builtin_alloca (sizeof(int)); [L550] int* r = __builtin_alloca (sizeof(int)); [L551] *x_ref = x [L552] *y_ref = y [L553] EXPR \read(*x_ref) VAL [r={3569:0}, x_ref={3567:0}, y_ref={3568:0}] [L553] COND TRUE *x_ref < 0 [L553] EXPR \read(*x_ref) VAL [r={3569:0}, x_ref={3567:0}, y_ref={3568:0}] [L553] -(*x_ref) VAL [r={3569:0}, x_ref={3567:0}, y_ref={3568:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.29ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 113.4MB in the end (delta: -53.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.20ms. Allocated memory is still 159.4MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.78ms. Allocated memory is still 159.4MB. Free memory was 111.3MB in the beginning and 110.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.35ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 95.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 672.29ms. Allocated memory is still 159.4MB. Free memory was 95.0MB in the beginning and 126.9MB in the end (delta: -31.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.74ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 124.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:47:03,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af32f171-cb2e-4e50-8d6b-d58733f05bf8/bin/ukojak-verify-ImItNfHLgk/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)