./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV --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 70d55a4dcb8d0c2db3cbbfd79b532e2c6b14009dde29008a33a122ff3c343af6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:50:47,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:50:47,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:50:47,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:50:47,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:50:47,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:50:47,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:50:47,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:50:47,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:50:47,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:50:47,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:50:47,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:50:47,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:50:47,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:50:47,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:50:47,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:50:47,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:50:47,946 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:50:47,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:50:47,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:50:47,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:50:47,948 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:50:47,948 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:50:47,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:50:47,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:47,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:50:47,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:50:47,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:50:47,951 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:50:47,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:50:47,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:50:47,953 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_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70d55a4dcb8d0c2db3cbbfd79b532e2c6b14009dde29008a33a122ff3c343af6 [2023-11-11 23:50:48,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:50:48,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:50:48,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:50:48,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:50:48,293 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:50:48,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-restricted-15/PastaB2.c [2023-11-11 23:50:51,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:51,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:51,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/sv-benchmarks/c/termination-restricted-15/PastaB2.c [2023-11-11 23:50:51,762 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/data/17edcb3ae/d75c3e641f5d4458892773df13fab42a/FLAG46121d17b [2023-11-11 23:50:51,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/data/17edcb3ae/d75c3e641f5d4458892773df13fab42a [2023-11-11 23:50:51,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:51,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:51,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:51,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:51,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:51,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:51" (1/1) ... [2023-11-11 23:50:51,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183fe101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:51, skipping insertion in model container [2023-11-11 23:50:51,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:51" (1/1) ... [2023-11-11 23:50:51,812 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:51,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:51,975 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:51,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:52,001 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:52,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52 WrapperNode [2023-11-11 23:50:52,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:52,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:52,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:52,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:52,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,035 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-11 23:50:52,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:52,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:52,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:52,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:52,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:52,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:52,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:52,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:52,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:52,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:52,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:52,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:52,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:52,247 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:52,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:52,402 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:52,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:52,424 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:50:52,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:52 BoogieIcfgContainer [2023-11-11 23:50:52,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:52,429 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:52,429 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:52,441 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:52,441 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-11 23:50:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-11 23:50:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:50:52,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-11 23:50:52,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-11 23:50:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:50:52,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:52,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:53,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2023-11-11 23:50:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-11-11 23:50:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:50:53,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-11-11 23:50:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-11 23:50:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:50:53,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-11 23:50:53,635 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-11 23:50:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:50:53,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2023-11-11 23:50:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-11-11 23:50:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:50:53,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-11 23:50:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-11 23:50:54,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:50:54,105 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-11 23:50:54,114 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:50:54,144 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-11 23:50:54,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:50:54 ImpRootNode [2023-11-11 23:50:54,152 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:50:54,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:50:54,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:50:54,153 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:50:54,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:52" (3/4) ... [2023-11-11 23:50:54,156 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:50:54,163 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-11 23:50:54,163 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-11 23:50:54,164 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-11 23:50:54,249 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:50:54,249 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:50:54,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:50:54,250 INFO L158 Benchmark]: Toolchain (without parser) took 2468.06ms. Allocated memory is still 201.3MB. Free memory was 153.8MB in the beginning and 141.9MB in the end (delta: 12.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-11-11 23:50:54,251 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 88.2MB in the end (delta: 157.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:54,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.17ms. Allocated memory is still 201.3MB. Free memory was 153.8MB in the beginning and 144.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:50:54,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.91ms. Allocated memory is still 201.3MB. Free memory was 144.4MB in the beginning and 142.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:54,252 INFO L158 Benchmark]: Boogie Preprocessor took 22.37ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 141.8MB in the end (delta: 766.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:54,253 INFO L158 Benchmark]: RCFGBuilder took 368.15ms. Allocated memory is still 201.3MB. Free memory was 141.8MB in the beginning and 132.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:50:54,253 INFO L158 Benchmark]: CodeCheck took 1723.79ms. Allocated memory is still 201.3MB. Free memory was 131.3MB in the beginning and 145.9MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:54,254 INFO L158 Benchmark]: Witness Printer took 96.73ms. Allocated memory is still 201.3MB. Free memory was 145.9MB in the beginning and 141.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:50:54,256 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, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 0 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 229 SyntacticMatches, 14 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4/5 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (0 <= (y + 2147483648))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 88.2MB in the end (delta: 157.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.17ms. Allocated memory is still 201.3MB. Free memory was 153.8MB in the beginning and 144.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.91ms. Allocated memory is still 201.3MB. Free memory was 144.4MB in the beginning and 142.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.37ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 141.8MB in the end (delta: 766.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 368.15ms. Allocated memory is still 201.3MB. Free memory was 141.8MB in the beginning and 132.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1723.79ms. Allocated memory is still 201.3MB. Free memory was 131.3MB in the beginning and 145.9MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 96.73ms. Allocated memory is still 201.3MB. Free memory was 145.9MB in the beginning and 141.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:50:54,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65521c42-1364-491e-9dc1-cc9a9591b443/bin/ukojak-verify-0OAaufAVZV/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