./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC --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 763425cdfe17b743f6d2e6f0cc6531a5beb662f31314e4267baa9658dd9cd8dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:23:47,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:23:47,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:23:47,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:23:47,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:23:47,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:23:47,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:23:47,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:23:47,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:23:47,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:23:47,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:23:47,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:23:47,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:23:47,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:23:47,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:23:47,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:23:47,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:23:47,387 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:23:47,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:23:47,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:23:47,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:23:47,390 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:23:47,390 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:23:47,391 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:23:47,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:23:47,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:23:47,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:23:47,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:23:47,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:23:47,394 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:23:47,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:23:47,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:23:47,395 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_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 763425cdfe17b743f6d2e6f0cc6531a5beb662f31314e4267baa9658dd9cd8dd [2023-11-23 20:23:47,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:23:47,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:23:47,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:23:47,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:23:47,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:23:47,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i [2023-11-23 20:23:50,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:23:51,157 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:23:51,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i [2023-11-23 20:23:51,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/data/8d600a02a/b945b0421cde47609f8887621dd5fba0/FLAG1c0901ef4 [2023-11-23 20:23:51,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/data/8d600a02a/b945b0421cde47609f8887621dd5fba0 [2023-11-23 20:23:51,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:23:51,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:23:51,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:23:51,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:23:51,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:23:51,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:23:51" (1/1) ... [2023-11-23 20:23:51,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35293af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:51, skipping insertion in model container [2023-11-23 20:23:51,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:23:51" (1/1) ... [2023-11-23 20:23:51,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:23:51,770 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:23:52,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:23:52,593 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:23:52,631 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:23:52,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:23:52,914 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,914 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,914 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,914 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,915 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,915 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:23:52,923 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:23:52,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52 WrapperNode [2023-11-23 20:23:52,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:23:52,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:23:52,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:23:52,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:23:52,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:52,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:52,998 INFO L138 Inliner]: procedures = 504, calls = 81, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2023-11-23 20:23:52,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:23:52,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:23:53,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:23:53,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:23:53,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:23:53,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:23:53,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:23:53,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:23:53,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:23:52" (1/1) ... [2023-11-23 20:23:53,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:23:53,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:23:53,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:23:53,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:23:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:23:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:23:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:23:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:23:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:23:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:23:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:23:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:23:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:23:53,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:23:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:23:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:23:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:23:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:23:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:23:53,291 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:23:53,293 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:23:53,465 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:23:53,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:23:53,507 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:23:53,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:23:53 BoogieIcfgContainer [2023-11-23 20:23:53,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:23:53,510 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:23:53,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:23:53,550 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:23:53,550 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:23:53" (1/1) ... [2023-11-23 20:23:53,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:23:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-23 20:23:53,620 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-23 20:23:53,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:23:53,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:23:53,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:23:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:23:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:23:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-23 20:23:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-23 20:23:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:23:54,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:23:54,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:23:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:23:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:23:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2023-11-23 20:23:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-23 20:23:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:23:54,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:23:54,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:23:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:23:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:23:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:54,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2023-11-23 20:23:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-23 20:23:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:23:54,533 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:23:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:23:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:23:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:23:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2023-11-23 20:23:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-23 20:23:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:23:54,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:23:54,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:23:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:23:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:23:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:23:55,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2023-11-23 20:23:55,191 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-11-23 20:23:55,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:23:55,194 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-23 20:23:55,205 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:23:55,241 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:23:55,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:23:55 ImpRootNode [2023-11-23 20:23:55,246 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:23:55,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:23:55,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:23:55,249 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:23:55,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:23:53" (3/4) ... [2023-11-23 20:23:55,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:23:55,255 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:23:55,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:23:55,266 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-23 20:23:55,266 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:23:55,266 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:23:55,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:23:55,384 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:23:55,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:23:55,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:23:55,386 INFO L158 Benchmark]: Toolchain (without parser) took 4168.44ms. Allocated memory is still 161.5MB. Free memory was 115.2MB in the beginning and 98.6MB in the end (delta: 16.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,386 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:23:55,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1703.80ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 93.8MB in the end (delta: 21.1MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.95ms. Allocated memory is still 161.5MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,388 INFO L158 Benchmark]: Boogie Preprocessor took 48.70ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,389 INFO L158 Benchmark]: RCFGBuilder took 460.45ms. Allocated memory is still 161.5MB. Free memory was 89.0MB in the beginning and 71.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,389 INFO L158 Benchmark]: CodeCheck took 1736.37ms. Allocated memory is still 161.5MB. Free memory was 71.3MB in the beginning and 103.8MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:23:55,390 INFO L158 Benchmark]: Witness Printer took 137.17ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 98.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:23:55,392 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, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 77 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 428 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1584]: 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 121.6MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1703.80ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 93.8MB in the end (delta: 21.1MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.95ms. Allocated memory is still 161.5MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.70ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.45ms. Allocated memory is still 161.5MB. Free memory was 89.0MB in the beginning and 71.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1736.37ms. Allocated memory is still 161.5MB. Free memory was 71.3MB in the beginning and 103.8MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 137.17ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 98.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:23:55,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a007e7b1-eec1-42a5-ac62-7376554aa389/bin/ukojak-verify-1t5iHCbJaC/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