./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_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_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/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_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/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_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/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 cc264d4b07d7eb3b476452e717e168006b9fa17ef2655b8e318d16d5a9efebca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:48:43,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:48:43,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:48:43,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:48:43,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:48:43,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:48:43,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:48:43,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:48:43,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:48:43,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:48:43,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:48:43,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:48:43,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:48:43,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:48:43,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:48:43,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:48:43,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:48:43,703 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:48:43,703 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:48:43,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:48:43,704 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:48:43,706 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:48:43,706 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:48:43,706 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:48:43,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:48:43,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:48:43,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:48:43,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:48:43,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:48:43,709 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:48:43,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:48:43,709 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:48:43,710 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_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc264d4b07d7eb3b476452e717e168006b9fa17ef2655b8e318d16d5a9efebca [2023-12-03 01:48:43,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:48:43,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:48:43,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:48:43,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:48:43,951 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:48:43,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i [2023-12-03 01:48:46,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:48:46,977 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:48:46,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i [2023-12-03 01:48:47,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/data/2d1654082/78bf4a94ad8b468dba733cb4a9a3ae8a/FLAG354bafe66 [2023-12-03 01:48:47,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/data/2d1654082/78bf4a94ad8b468dba733cb4a9a3ae8a [2023-12-03 01:48:47,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:48:47,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:48:47,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:48:47,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:48:47,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:48:47,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:48:47" (1/1) ... [2023-12-03 01:48:47,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f0ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:47, skipping insertion in model container [2023-12-03 01:48:47,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:48:47" (1/1) ... [2023-12-03 01:48:47,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:48:47,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:48:47,786 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:48:47,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:48:48,021 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:48:48,021 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:48:48,021 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:48:48,022 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:48:48,027 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:48:48,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48 WrapperNode [2023-12-03 01:48:48,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:48:48,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:48:48,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:48:48,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:48:48,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,084 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 89 [2023-12-03 01:48:48,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:48:48,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:48:48,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:48:48,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:48:48,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:48:48,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:48:48,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:48:48,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:48:48,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:48:48,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:48:48,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:48:48,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:48:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 01:48:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 01:48:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-12-03 01:48:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-12-03 01:48:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:48:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:48:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:48:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:48:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:48:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:48:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:48:48,323 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:48:48,325 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:48:48,463 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:48:48,504 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:48:48,505 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:48:48,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:48:48 BoogieIcfgContainer [2023-12-03 01:48:48,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:48:48,507 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:48:48,508 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:48:48,517 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:48:48,518 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:48:48" (1/1) ... [2023-12-03 01:48:48,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:48:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 54 states and 66 transitions. [2023-12-03 01:48:48,568 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2023-12-03 01:48:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:48:48,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:48,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:48,805 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 01:48:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2023-12-03 01:48:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2023-12-03 01:48:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:48:48,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:48,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:48,923 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 01:48:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 52 states and 64 transitions. [2023-12-03 01:48:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2023-12-03 01:48:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 01:48:48,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:48,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,023 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 01:48:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 57 transitions. [2023-12-03 01:48:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2023-12-03 01:48:49,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 01:48:49,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:49,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,129 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 01:48:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 50 transitions. [2023-12-03 01:48:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-12-03 01:48:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:48:49,149 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:49,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-03 01:48:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 41 states and 49 transitions. [2023-12-03 01:48:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-12-03 01:48:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:48:49,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-03 01:48:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 48 transitions. [2023-12-03 01:48:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-12-03 01:48:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 01:48:49,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-03 01:48:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 39 states and 47 transitions. [2023-12-03 01:48:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-12-03 01:48:49,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 01:48:49,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:48:49,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:48:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:48:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-03 01:48:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:48:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 38 states and 46 transitions. [2023-12-03 01:48:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-12-03 01:48:49,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:48:49,572 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 01:48:49,580 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 01:48:49,632 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:48:49,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:48:49 ImpRootNode [2023-12-03 01:48:49,637 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:48:49,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:48:49,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:48:49,638 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:48:49,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:48:48" (3/4) ... [2023-12-03 01:48:49,640 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:48:49,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 01:48:49,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-12-03 01:48:49,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 01:48:49,647 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-12-03 01:48:49,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 01:48:49,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:48:49,649 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:48:49,740 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:48:49,740 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:48:49,740 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:48:49,741 INFO L158 Benchmark]: Toolchain (without parser) took 2721.15ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 54.6MB in the end (delta: 67.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,741 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:48:49,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.57ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 124.0MB in the end (delta: -1.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.99ms. Allocated memory is still 163.6MB. Free memory was 124.0MB in the beginning and 121.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,743 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 119.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,743 INFO L158 Benchmark]: RCFGBuilder took 393.92ms. Allocated memory is still 163.6MB. Free memory was 119.8MB in the beginning and 102.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,743 INFO L158 Benchmark]: CodeCheck took 1129.28ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 59.7MB in the end (delta: 42.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,744 INFO L158 Benchmark]: Witness Printer took 103.22ms. Allocated memory is still 163.6MB. Free memory was 59.7MB in the beginning and 54.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:48:49,745 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 4 procedures, 54 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 569 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 414 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 336 mSDtfsCounter, 188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1176 GetRequests, 1159 SyntacticMatches, 9 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 64/64 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: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: 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: 1622]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.57ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 124.0MB in the end (delta: -1.7MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.99ms. Allocated memory is still 163.6MB. Free memory was 124.0MB in the beginning and 121.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 119.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.92ms. Allocated memory is still 163.6MB. Free memory was 119.8MB in the beginning and 102.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1129.28ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 59.7MB in the end (delta: 42.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 103.22ms. Allocated memory is still 163.6MB. Free memory was 59.7MB in the beginning and 54.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:48:49,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_878e2c11-dd6e-4cd6-b183-1c1daf0cafd7/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