./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_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_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9 --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 b7344d097d65f119e03a45c632facc61e6810404367546208343f8dd8218e1be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:57:00,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:57:00,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:57:00,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:57:00,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:57:00,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:57:00,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:57:00,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:57:00,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:57:00,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:57:00,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:57:00,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:57:00,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:57:00,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:57:00,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:57:00,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:57:00,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:57:00,179 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:57:00,179 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:57:00,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:57:00,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:57:00,181 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:57:00,181 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:57:00,182 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:57:00,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:57:00,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:57:00,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:57:00,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:57:00,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:57:00,184 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:57:00,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:57:00,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:57:00,186 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_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7344d097d65f119e03a45c632facc61e6810404367546208343f8dd8218e1be [2023-12-03 01:57:00,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:57:00,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:57:00,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:57:00,426 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:57:00,426 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:57:00,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i [2023-12-03 01:57:03,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:57:03,586 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:57:03,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i [2023-12-03 01:57:03,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/data/82a83cda0/0429bb3c0f3e416eac3a5e364cd93292/FLAG6967086df [2023-12-03 01:57:03,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/data/82a83cda0/0429bb3c0f3e416eac3a5e364cd93292 [2023-12-03 01:57:03,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:57:03,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:57:03,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:57:03,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:57:03,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:57:03,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:57:03" (1/1) ... [2023-12-03 01:57:03,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c36861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:03, skipping insertion in model container [2023-12-03 01:57:03,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:57:03" (1/1) ... [2023-12-03 01:57:03,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:57:04,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:57:04,618 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:57:04,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:57:04,816 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:57:04,816 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:57:04,816 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:57:04,817 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:57:04,823 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:57:04,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04 WrapperNode [2023-12-03 01:57:04,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:57:04,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:57:04,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:57:04,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:57:04,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,887 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 194 [2023-12-03 01:57:04,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:57:04,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:57:04,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:57:04,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:57:04,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:57:04,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:57:04,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:57:04,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:57:04,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:57:04" (1/1) ... [2023-12-03 01:57:04,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:57:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:57:04,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:57:04,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:57:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 01:57:05,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 01:57:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:57:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:57:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:57:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:57:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:57:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:57:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:57:05,177 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:57:05,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:57:05,498 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:57:05,717 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:57:05,717 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:57:05,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:57:05 BoogieIcfgContainer [2023-12-03 01:57:05,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:57:05,720 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:57:05,720 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:57:05,729 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:57:05,729 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:57:05" (1/1) ... [2023-12-03 01:57:05,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:57:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 42 states and 52 transitions. [2023-12-03 01:57:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2023-12-03 01:57:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:57:05,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:05,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:57:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 51 transitions. [2023-12-03 01:57:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-12-03 01:57:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:57:06,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:06,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:57:06,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 50 transitions. [2023-12-03 01:57:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2023-12-03 01:57:06,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:57:06,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:57:06,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:06,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 46 transitions. [2023-12-03 01:57:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-12-03 01:57:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:57:06,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:06,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:57:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 45 transitions. [2023-12-03 01:57:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-12-03 01:57:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:57:06,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:57:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 44 transitions. [2023-12-03 01:57:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-12-03 01:57:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:57:07,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:57:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 43 transitions. [2023-12-03 01:57:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-12-03 01:57:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:57:07,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:07,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 01:57:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:07,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 42 transitions. [2023-12-03 01:57:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-12-03 01:57:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:57:07,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:07,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 01:57:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 41 transitions. [2023-12-03 01:57:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-12-03 01:57:08,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:57:08,118 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 01:57:08,126 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-12-03 01:57:08,171 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:57:08,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:57:08 ImpRootNode [2023-12-03 01:57:08,175 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:57:08,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:57:08,176 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:57:08,176 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:57:08,177 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:57:05" (3/4) ... [2023-12-03 01:57:08,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:57:08,182 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 01:57:08,182 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 01:57:08,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2023-12-03 01:57:08,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-12-03 01:57:08,198 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:57:08,199 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:57:08,309 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:57:08,310 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:57:08,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:57:08,310 INFO L158 Benchmark]: Toolchain (without parser) took 4676.41ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 94.3MB in the beginning and 125.8MB in the end (delta: -31.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,311 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:57:08,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1187.47ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 80.4MB in the end (delta: 13.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.37ms. Allocated memory is still 151.0MB. Free memory was 80.4MB in the beginning and 76.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,311 INFO L158 Benchmark]: Boogie Preprocessor took 33.75ms. Allocated memory is still 151.0MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,312 INFO L158 Benchmark]: RCFGBuilder took 796.12ms. Allocated memory is still 151.0MB. Free memory was 74.8MB in the beginning and 69.7MB in the end (delta: 5.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,312 INFO L158 Benchmark]: CodeCheck took 2455.62ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 133.1MB in the end (delta: -63.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:57:08,312 INFO L158 Benchmark]: Witness Printer took 133.94ms. Allocated memory is still 192.9MB. Free memory was 133.1MB in the beginning and 125.8MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 01:57:08,315 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 3 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 238 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 224 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 775 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: 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 6 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1187.47ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 80.4MB in the end (delta: 13.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.37ms. Allocated memory is still 151.0MB. Free memory was 80.4MB in the beginning and 76.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.75ms. Allocated memory is still 151.0MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.12ms. Allocated memory is still 151.0MB. Free memory was 74.8MB in the beginning and 69.7MB in the end (delta: 5.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * CodeCheck took 2455.62ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 133.1MB in the end (delta: -63.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.94ms. Allocated memory is still 192.9MB. Free memory was 133.1MB in the beginning and 125.8MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:57:08,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bafac92-eaae-4b04-b4e0-02c9af94f469/bin/ukojak-verify-Qdu7aM0XO9/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