./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/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_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/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 32bit --witnessprinter.graph.data.programhash 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:26,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:26,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:51:26,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:51:26,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:51:26,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:26,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:26,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:26,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:26,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:26,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:26,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:26,754 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:51:26,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:51:26,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:51:26,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:26,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:26,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:26,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:26,760 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:51:26,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:26,762 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:51:26,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:26,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:26,764 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:26,765 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:26,765 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:26,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:26,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:26,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:26,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:26,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:26,770 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:51:26,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:51:26,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:26,772 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_9edb7c64-a853-4be0-a69c-f136cfeabac4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 [2023-11-19 02:51:27,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:27,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:27,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:27,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:27,157 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:27,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2023-11-19 02:51:30,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:31,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:31,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2023-11-19 02:51:31,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/data/4f3342047/cbf57e3f3ed64e6a87646e332a3ecced/FLAG39ff993a2 [2023-11-19 02:51:31,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/data/4f3342047/cbf57e3f3ed64e6a87646e332a3ecced [2023-11-19 02:51:31,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:31,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:31,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:31,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:31,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:31,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:31,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659dae34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31, skipping insertion in model container [2023-11-19 02:51:31,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:31,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:31,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:31,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:31,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:31,911 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:31,921 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:31,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31 WrapperNode [2023-11-19 02:51:31,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:31,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:31,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:31,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:31,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:31,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,024 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 459 [2023-11-19 02:51:32,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:32,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:32,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:32,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:32,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:32,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:32,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:32,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:32,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:31" (1/1) ... [2023-11-19 02:51:32,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:32,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:32,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:32,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:51:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2023-11-19 02:51:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2023-11-19 02:51:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:51:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:51:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:51:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:51:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:51:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 02:51:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:51:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2023-11-19 02:51:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2023-11-19 02:51:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:51:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2023-11-19 02:51:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2023-11-19 02:51:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:32,467 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:32,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:33,380 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:33,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:33,629 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 02:51:33,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:33 BoogieIcfgContainer [2023-11-19 02:51:33,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:33,637 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:33,637 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:33,650 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:33,651 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:33" (1/1) ... [2023-11-19 02:51:33,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 65 states and 95 transitions. [2023-11-19 02:51:33,762 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 95 transitions. [2023-11-19 02:51:33,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:51:33,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:34,219 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 02:51:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 64 states and 94 transitions. [2023-11-19 02:51:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2023-11-19 02:51:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:51:34,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:34,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:34,425 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 02:51:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 63 states and 93 transitions. [2023-11-19 02:51:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2023-11-19 02:51:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 02:51:34,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 02:51:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 65 states and 98 transitions. [2023-11-19 02:51:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2023-11-19 02:51:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 02:51:34,712 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:51:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 70 states and 114 transitions. [2023-11-19 02:51:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 114 transitions. [2023-11-19 02:51:35,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:51:35,813 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 02:51:35,825 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 02:51:35,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,928 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,929 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,929 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,929 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,930 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,930 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,930 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,930 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,931 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,931 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,931 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,931 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,932 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:51:35,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:35 ImpRootNode [2023-11-19 02:51:35,933 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:35,934 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:35,934 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:35,934 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:35,935 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:33" (3/4) ... [2023-11-19 02:51:35,938 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:51:35,943 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2023-11-19 02:51:35,944 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2023-11-19 02:51:35,944 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2023-11-19 02:51:35,960 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 90 nodes and edges [2023-11-19 02:51:35,962 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-19 02:51:35,964 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 02:51:35,966 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:51:35,967 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:51:35,969 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:51:36,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:51:36,214 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:51:36,214 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:36,216 INFO L158 Benchmark]: Toolchain (without parser) took 4876.91ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 102.7MB in the end (delta: 18.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,216 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 111.1MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:36,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.39ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 103.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.59ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 100.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,218 INFO L158 Benchmark]: Boogie Preprocessor took 92.90ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 96.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,218 INFO L158 Benchmark]: RCFGBuilder took 1507.68ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 87.9MB in the end (delta: 8.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,219 INFO L158 Benchmark]: CodeCheck took 2296.22ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 114.2MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:36,220 INFO L158 Benchmark]: Witness Printer took 281.31ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 102.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:51:36,223 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, 65 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 97 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 376 SyntacticMatches, 43 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 14/24 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: 354]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 354]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 378]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 378]: 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: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 417]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 111.1MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.39ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 103.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.59ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 100.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.90ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 96.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1507.68ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 87.9MB in the end (delta: 8.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * CodeCheck took 2296.22ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 114.2MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 281.31ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 102.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:51:36,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9edb7c64-a853-4be0-a69c-f136cfeabac4/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