./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi --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 10dd9db220e8f975638086d64b1bfc4d3d3aa1479afc97ef62d6deeabc3d6d4f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:57:08,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:57:08,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:57:08,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:57:08,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:57:08,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:57:08,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:57:08,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:57:08,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:57:08,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:57:08,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:57:08,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:57:08,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:57:08,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:57:08,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:57:08,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:57:08,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:57:08,819 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:57:08,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:57:08,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:57:08,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:57:08,822 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:57:08,822 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:57:08,823 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:57:08,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:57:08,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:08,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:57:08,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:57:08,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:57:08,825 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:57:08,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:57:08,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:57:08,826 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_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd9db220e8f975638086d64b1bfc4d3d3aa1479afc97ef62d6deeabc3d6d4f [2023-11-24 22:57:09,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:57:09,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:57:09,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:57:09,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:57:09,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:57:09,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_good.i [2023-11-24 22:57:12,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:57:12,900 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:57:12,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_good.i [2023-11-24 22:57:12,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/data/33ea457d3/c39c9bbcec2a46b493cf58bf40eb345f/FLAG758812cd7 [2023-11-24 22:57:12,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/data/33ea457d3/c39c9bbcec2a46b493cf58bf40eb345f [2023-11-24 22:57:12,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:57:12,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:57:12,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:12,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:57:12,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:57:12,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:12" (1/1) ... [2023-11-24 22:57:12,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22458e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:12, skipping insertion in model container [2023-11-24 22:57:12,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:12" (1/1) ... [2023-11-24 22:57:13,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:57:14,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:14,237 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:57:14,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:14,573 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:14,573 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:14,574 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:14,574 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:14,583 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:57:14,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14 WrapperNode [2023-11-24 22:57:14,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:14,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:14,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:57:14,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:57:14,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,685 INFO L138 Inliner]: procedures = 504, calls = 78, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 135 [2023-11-24 22:57:14,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:14,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:57:14,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:57:14,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:57:14,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:57:14,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:57:14,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:57:14,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:57:14,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:14,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:57:14,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:57:14,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:57:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 22:57:14,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 22:57:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:57:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:57:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:57:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:57:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:57:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-24 22:57:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-24 22:57:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2023-11-24 22:57:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2023-11-24 22:57:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:57:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:57:15,059 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:57:15,062 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:57:15,381 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:57:15,433 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:57:15,433 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:57:15,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:15 BoogieIcfgContainer [2023-11-24 22:57:15,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:57:15,437 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:57:15,437 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:57:15,448 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:57:15,448 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:15" (1/1) ... [2023-11-24 22:57:15,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:57:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 73 states and 93 transitions. [2023-11-24 22:57:15,526 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2023-11-24 22:57:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:57:15,533 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:15,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 67 states and 85 transitions. [2023-11-24 22:57:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2023-11-24 22:57:16,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:57:16,208 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:16,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:57:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:16,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 65 states and 81 transitions. [2023-11-24 22:57:16,531 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2023-11-24 22:57:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:57:16,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:57:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 80 transitions. [2023-11-24 22:57:16,656 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-11-24 22:57:16,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:57:16,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:16,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:57:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:16,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 59 states and 73 transitions. [2023-11-24 22:57:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2023-11-24 22:57:16,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:57:16,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:16,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 22:57:17,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 59 states and 72 transitions. [2023-11-24 22:57:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2023-11-24 22:57:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-24 22:57:17,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 22:57:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 63 states and 79 transitions. [2023-11-24 22:57:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2023-11-24 22:57:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 22:57:17,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 22:57:17,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 68 states and 87 transitions. [2023-11-24 22:57:17,636 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2023-11-24 22:57:17,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 22:57:17,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-24 22:57:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 55 states and 66 transitions. [2023-11-24 22:57:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2023-11-24 22:57:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 22:57:17,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-24 22:57:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 55 states and 65 transitions. [2023-11-24 22:57:18,145 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2023-11-24 22:57:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-24 22:57:18,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:18,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-24 22:57:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 54 states and 64 transitions. [2023-11-24 22:57:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2023-11-24 22:57:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-24 22:57:18,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-24 22:57:18,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 53 states and 63 transitions. [2023-11-24 22:57:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-11-24 22:57:18,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:57:18,804 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-24 22:57:18,813 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-24 22:57:18,960 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:57:18,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:57:18 ImpRootNode [2023-11-24 22:57:18,965 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:57:18,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:57:18,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:57:18,966 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:57:18,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:15" (3/4) ... [2023-11-24 22:57:18,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:57:18,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 22:57:18,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2023-11-24 22:57:18,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 22:57:18,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2023-11-24 22:57:18,978 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-24 22:57:18,979 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 22:57:18,979 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:57:18,980 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:57:19,107 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:57:19,107 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:57:19,107 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:57:19,108 INFO L158 Benchmark]: Toolchain (without parser) took 6149.01ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 80.9MB in the beginning and 51.2MB in the end (delta: 29.7MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,109 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 100.5MB in the beginning and 100.4MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:57:19,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1623.54ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 80.5MB in the beginning and 114.5MB in the end (delta: -34.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.69ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 111.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,111 INFO L158 Benchmark]: Boogie Preprocessor took 82.12ms. Allocated memory is still 169.9MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,112 INFO L158 Benchmark]: RCFGBuilder took 666.70ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 89.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,112 INFO L158 Benchmark]: CodeCheck took 3528.31ms. Allocated memory is still 169.9MB. Free memory was 89.4MB in the beginning and 57.4MB in the end (delta: 32.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,112 INFO L158 Benchmark]: Witness Printer took 141.75ms. Allocated memory is still 169.9MB. Free memory was 57.4MB in the beginning and 51.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:57:19,115 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 5 procedures, 73 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1589 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 1179 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 275 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 760 IncrementalHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 275 mSolverCounterUnsat, 1001 mSDtfsCounter, 760 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3213 GetRequests, 3167 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 463 ConstructedInterpolants, 0 QuantifiedInterpolants, 631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 216/220 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: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1654]: 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 130.0MB. Free memory was 100.5MB in the beginning and 100.4MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1623.54ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 80.5MB in the beginning and 114.5MB in the end (delta: -34.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.69ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 111.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.12ms. Allocated memory is still 169.9MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.70ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 89.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 3528.31ms. Allocated memory is still 169.9MB. Free memory was 89.4MB in the beginning and 57.4MB in the end (delta: 32.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 141.75ms. Allocated memory is still 169.9MB. Free memory was 57.4MB in the beginning and 51.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:57:19,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979d6599-28d6-4aad-93cb-a3e5509f87e0/bin/ukojak-verify-afCqCEvfdi/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