./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2 --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 d9bea5117c8c0a4ec3b6d04ad34749e11f55baa315238093be8814a55966f647 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:06,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:06,428 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:54:06,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:54:06,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:54:06,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:06,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:06,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:06,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:06,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:06,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:06,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:06,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:54:06,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:06,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:06,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:06,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:06,492 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:06,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:06,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:06,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:06,494 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:06,494 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:06,495 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:06,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:06,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:06,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:06,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:06,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:06,497 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:54:06,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:54:06,499 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:06,499 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_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9bea5117c8c0a4ec3b6d04ad34749e11f55baa315238093be8814a55966f647 [2023-11-21 18:54:06,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:06,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:06,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:06,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:06,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:06,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_good.i [2023-11-21 18:54:09,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:10,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:10,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_good.i [2023-11-21 18:54:10,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/data/d0e49f07c/91e74686e585470cbd03bf70945a6a9f/FLAG347401551 [2023-11-21 18:54:10,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/data/d0e49f07c/91e74686e585470cbd03bf70945a6a9f [2023-11-21 18:54:10,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:10,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:10,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:10,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:10,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:10,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:10" (1/1) ... [2023-11-21 18:54:10,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d828060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:10, skipping insertion in model container [2023-11-21 18:54:10,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:10" (1/1) ... [2023-11-21 18:54:10,517 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:10,885 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:11,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:11,494 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:11,535 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:11,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:11,841 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,841 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,841 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,842 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,842 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,842 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:11,850 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:11,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11 WrapperNode [2023-11-21 18:54:11,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:11,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:11,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:11,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:11,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:11,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:11,963 INFO L138 Inliner]: procedures = 502, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 112 [2023-11-21 18:54:11,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:11,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:11,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:11,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:11,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:11,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:11,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:11,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:12,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:12,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:12,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:12,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:11" (1/1) ... [2023-11-21 18:54:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:12,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:12,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:12,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-21 18:54:12,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-21 18:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:54:12,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:12,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:54:12,282 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:12,284 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:12,516 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:12,587 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:12,587 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 18:54:12,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:12 BoogieIcfgContainer [2023-11-21 18:54:12,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:12,590 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:12,590 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:12,598 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:12,598 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:12" (1/1) ... [2023-11-21 18:54:12,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2023-11-21 18:54:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-11-21 18:54:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:12,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2023-11-21 18:54:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2023-11-21 18:54:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:13,108 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 52 states and 64 transitions. [2023-11-21 18:54:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2023-11-21 18:54:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:54:13,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2023-11-21 18:54:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2023-11-21 18:54:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:54:13,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:54:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 54 states and 66 transitions. [2023-11-21 18:54:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2023-11-21 18:54:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:54:13,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:54:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2023-11-21 18:54:13,722 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2023-11-21 18:54:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:54:13,723 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:54:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 54 states and 67 transitions. [2023-11-21 18:54:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2023-11-21 18:54:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:54:13,842 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:13,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 56 transitions. [2023-11-21 18:54:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2023-11-21 18:54:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:54:14,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 55 states and 67 transitions. [2023-11-21 18:54:14,744 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2023-11-21 18:54:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:54:14,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:54:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 59 states and 74 transitions. [2023-11-21 18:54:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2023-11-21 18:54:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:54:14,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:14,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:15,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:54:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 55 states and 69 transitions. [2023-11-21 18:54:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-11-21 18:54:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:54:15,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:15,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:54:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 56 states and 70 transitions. [2023-11-21 18:54:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2023-11-21 18:54:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:54:15,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:15,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:54:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 60 states and 75 transitions. [2023-11-21 18:54:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2023-11-21 18:54:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:54:15,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:54:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 62 states and 78 transitions. [2023-11-21 18:54:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2023-11-21 18:54:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:54:15,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:54:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 46 states and 54 transitions. [2023-11-21 18:54:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-11-21 18:54:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:54:16,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:54:16,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 47 states and 55 transitions. [2023-11-21 18:54:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2023-11-21 18:54:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:54:16,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:16,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:54:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:16,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 43 states and 49 transitions. [2023-11-21 18:54:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2023-11-21 18:54:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:54:16,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:16,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:54:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 45 states and 53 transitions. [2023-11-21 18:54:17,110 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2023-11-21 18:54:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:54:17,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:17,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:54:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 48 states and 58 transitions. [2023-11-21 18:54:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-11-21 18:54:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:54:18,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:18,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:54:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 68 transitions. [2023-11-21 18:54:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-21 18:54:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:54:19,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:54:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 55 states and 71 transitions. [2023-11-21 18:54:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2023-11-21 18:54:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:54:19,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:54:19,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 56 states and 72 transitions. [2023-11-21 18:54:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2023-11-21 18:54:19,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 18:54:19,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:54:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 57 states and 73 transitions. [2023-11-21 18:54:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-21 18:54:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:54:19,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-21 18:54:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 42 states and 49 transitions. [2023-11-21 18:54:20,347 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2023-11-21 18:54:20,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:54:20,347 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 24 iterations. [2023-11-21 18:54:20,357 INFO L751 CodeCheckObserver]: All specifications hold 12 specifications checked. All of them hold [2023-11-21 18:54:20,473 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2023-11-21 18:54:20,481 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:54:20,481 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:54:20,481 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:54:20,482 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:54:20,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:54:20 ImpRootNode [2023-11-21 18:54:20,482 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:54:20,483 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:54:20,483 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:54:20,483 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:54:20,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:12" (3/4) ... [2023-11-21 18:54:20,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:54:20,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-21 18:54:20,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-21 18:54:20,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-21 18:54:20,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-21 18:54:20,500 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:54:20,500 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:54:20,644 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:54:20,644 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:54:20,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:54:20,645 INFO L158 Benchmark]: Toolchain (without parser) took 10231.79ms. Allocated memory was 159.4MB in the beginning and 247.5MB in the end (delta: 88.1MB). Free memory was 109.9MB in the beginning and 146.5MB in the end (delta: -36.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,645 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:20,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1436.86ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 109.5MB in the beginning and 137.0MB in the end (delta: -27.5MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.93ms. Allocated memory is still 205.5MB. Free memory was 137.0MB in the beginning and 133.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,647 INFO L158 Benchmark]: Boogie Preprocessor took 61.15ms. Allocated memory is still 205.5MB. Free memory was 133.9MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,647 INFO L158 Benchmark]: RCFGBuilder took 562.83ms. Allocated memory is still 205.5MB. Free memory was 131.9MB in the beginning and 113.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,648 INFO L158 Benchmark]: CodeCheck took 7892.64ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 113.0MB in the beginning and 151.8MB in the end (delta: -38.8MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,648 INFO L158 Benchmark]: Witness Printer took 161.65ms. Allocated memory is still 247.5MB. Free memory was 151.8MB in the beginning and 146.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:54:20,650 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, 48 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1818 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 694 mSDsluCounter, 971 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 793 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3044 IncrementalHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 793 mSolverCounterUnsat, 707 mSDtfsCounter, 3044 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3739 GetRequests, 3607 SyntacticMatches, 8 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5226 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 17 PerfectInterpolantSequences, 80/86 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: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 1586]: Loop Invariant Derived loop invariant: ((h == 0) || (((1 <= h) && ((data + 2) <= 0)) && (0 <= (data + 2)))) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1590]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1436.86ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 109.5MB in the beginning and 137.0MB in the end (delta: -27.5MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.93ms. Allocated memory is still 205.5MB. Free memory was 137.0MB in the beginning and 133.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.15ms. Allocated memory is still 205.5MB. Free memory was 133.9MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.83ms. Allocated memory is still 205.5MB. Free memory was 131.9MB in the beginning and 113.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 7892.64ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 113.0MB in the beginning and 151.8MB in the end (delta: -38.8MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 161.65ms. Allocated memory is still 247.5MB. Free memory was 151.8MB in the beginning and 146.5MB 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! [2023-11-21 18:54:20,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80319e9a-253f-4c5e-ae87-e417e558283e/bin/ukojak-verify-i0I2FZA1j2/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