./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_65_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_65_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL --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 7bf21a3e1e114bffc19370352e28c32d3665056e9fe88e223bf8fe7ed0e63863 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:50:30,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:50:30,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:50:30,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:50:30,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:50:30,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:50:30,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:50:30,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:50:30,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:50:30,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:50:30,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:50:30,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:50:30,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:50:30,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:50:30,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:50:30,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:50:30,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:50:30,465 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:50:30,466 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:50:30,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:50:30,467 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:50:30,467 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:50:30,468 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:50:30,468 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:50:30,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:50:30,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:30,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:50:30,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:50:30,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:50:30,471 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:50:30,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:50:30,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:50:30,473 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_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf21a3e1e114bffc19370352e28c32d3665056e9fe88e223bf8fe7ed0e63863 [2023-11-19 02:50:30,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:50:30,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:50:30,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:50:30,844 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:50:30,844 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:50:30,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_65_good.i [2023-11-19 02:50:33,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:50:34,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:50:34,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_65_good.i [2023-11-19 02:50:34,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/data/93e3f3de4/123954339c13436290d43365b17e8301/FLAG92bd0afc0 [2023-11-19 02:50:34,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/data/93e3f3de4/123954339c13436290d43365b17e8301 [2023-11-19 02:50:34,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:50:34,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:50:34,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:34,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:50:34,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:50:34,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:34" (1/1) ... [2023-11-19 02:50:34,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32de87e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:34, skipping insertion in model container [2023-11-19 02:50:34,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:34" (1/1) ... [2023-11-19 02:50:34,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:50:34,974 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:50:35,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:35,622 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:50:35,655 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:50:35,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:35,942 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,943 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,943 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,943 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,943 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,943 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:35,951 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:50:35,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35 WrapperNode [2023-11-19 02:50:35,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:35,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:35,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:50:35,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:50:35,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:35,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,017 INFO L138 Inliner]: procedures = 504, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 66 [2023-11-19 02:50:36,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:36,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:50:36,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:50:36,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:50:36,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:50:36,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:50:36,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:50:36,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:50:36,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:35" (1/1) ... [2023-11-19 02:50:36,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:36,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:50:36,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:50:36,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:50:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 02:50:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 02:50:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:50:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:50:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:50:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:50:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:50:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-19 02:50:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-19 02:50:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:50:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:50:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:50:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:50:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:50:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:50:36,275 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:50:36,278 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:50:36,427 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:50:36,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:50:36,464 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:50:36,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:36 BoogieIcfgContainer [2023-11-19 02:50:36,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:50:36,471 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:50:36,471 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:50:36,479 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:50:36,479 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:36" (1/1) ... [2023-11-19 02:50:36,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:50:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-11-19 02:50:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-19 02:50:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:50:36,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:36,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:37,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 43 transitions. [2023-11-19 02:50:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-19 02:50:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:50:37,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:37,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-19 02:50:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-19 02:50:37,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:50:37,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 39 states and 48 transitions. [2023-11-19 02:50:37,755 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-11-19 02:50:37,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:50:37,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:38,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 51 transitions. [2023-11-19 02:50:38,414 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-11-19 02:50:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 02:50:38,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:38,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 47 transitions. [2023-11-19 02:50:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-19 02:50:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:50:39,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 46 transitions. [2023-11-19 02:50:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-19 02:50:40,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:50:40,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:40,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 45 transitions. [2023-11-19 02:50:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-19 02:50:40,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:50:40,436 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-19 02:50:40,445 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 02:50:40,564 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:50:40,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:50:40 ImpRootNode [2023-11-19 02:50:40,569 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:50:40,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:50:40,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:50:40,570 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:50:40,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:36" (3/4) ... [2023-11-19 02:50:40,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:50:40,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 02:50:40,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 02:50:40,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2023-11-19 02:50:40,581 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-19 02:50:40,582 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 02:50:40,582 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:50:40,583 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:50:40,702 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:50:40,703 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:50:40,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:50:40,705 INFO L158 Benchmark]: Toolchain (without parser) took 6336.95ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 124.7MB in the beginning and 91.0MB in the end (delta: 33.7MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,706 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:50:40,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1581.69ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 93.1MB in the end (delta: 30.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.78ms. Allocated memory is still 159.4MB. Free memory was 93.1MB in the beginning and 90.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,707 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,707 INFO L158 Benchmark]: RCFGBuilder took 418.44ms. Allocated memory is still 159.4MB. Free memory was 88.0MB in the beginning and 72.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,708 INFO L158 Benchmark]: CodeCheck took 4098.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 72.2MB in the beginning and 96.1MB in the end (delta: -24.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,708 INFO L158 Benchmark]: Witness Printer took 134.08ms. Allocated memory is still 192.9MB. Free memory was 96.1MB in the beginning and 91.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:50:40,710 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 174 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 174 mSolverCounterUnsat, 149 mSDtfsCounter, 471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 848 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 9/9 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: 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 - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: 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: 1576]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1581.69ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 93.1MB in the end (delta: 30.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.78ms. Allocated memory is still 159.4MB. Free memory was 93.1MB in the beginning and 90.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.44ms. Allocated memory is still 159.4MB. Free memory was 88.0MB in the beginning and 72.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4098.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 72.2MB in the beginning and 96.1MB in the end (delta: -24.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Witness Printer took 134.08ms. Allocated memory is still 192.9MB. Free memory was 96.1MB in the beginning and 91.0MB 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! [2023-11-19 02:50:40,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a61ca1-9d45-4ae2-808a-0fe2c92ca455/bin/ukojak-verify-G8NBE6pJGL/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