./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e --witnessprinter.witness.filename witness.graphml --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 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:28:04,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:28:04,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:28:05,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:28:05,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:28:05,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:28:05,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:28:05,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:28:05,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:28:05,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:28:05,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:28:05,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:28:05,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:28:05,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:28:05,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:28:05,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:28:05,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:28:05,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:28:05,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:28:05,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:28:05,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:28:05,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:28:05,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:28:05,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:28:05,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:28:05,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:28:05,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:28:05,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:28:05,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:28:05,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:28:05,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:28:05,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:28:05,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:28:05,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:28:05,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:28:05,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:28:05,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:28:05,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:28:05,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:28:05,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:28:05,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:28:05,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-13 23:28:05,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:28:05,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:28:05,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:28:05,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:28:05,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:28:05,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:28:05,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:28:05,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:28:05,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:28:05,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:28:05,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:28:05,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:28:05,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:28:05,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:28:05,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:28:05,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:28:05,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:28:05,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:28:05,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:28:05,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:28:05,171 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:28:05,172 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:28:05,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:28:05,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:28:05,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:28:05,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:28:05,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:28:05,173 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:28:05,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:28:05,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:28:05,173 INFO L138 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_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 [2021-11-13 23:28:05,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:28:05,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:28:05,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:28:05,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:28:05,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:28:05,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2021-11-13 23:28:05,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/data/0f0166a52/42b98297490443eda6dff5d4d7a327b5/FLAG25dc1c262 [2021-11-13 23:28:05,973 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:28:05,973 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2021-11-13 23:28:05,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/data/0f0166a52/42b98297490443eda6dff5d4d7a327b5/FLAG25dc1c262 [2021-11-13 23:28:06,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/data/0f0166a52/42b98297490443eda6dff5d4d7a327b5 [2021-11-13 23:28:06,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:28:06,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:28:06,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:28:06,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:28:06,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:28:06,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06, skipping insertion in model container [2021-11-13 23:28:06,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:28:06,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:28:06,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2021-11-13 23:28:06,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:28:06,621 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:28:06,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2021-11-13 23:28:06,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:28:06,673 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:28:06,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06 WrapperNode [2021-11-13 23:28:06,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:28:06,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:28:06,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:28:06,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:28:06,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:28:06,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:28:06,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:28:06,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:28:06,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:28:06,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:28:06,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:28:06,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:28:06,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:28:06" (1/1) ... [2021-11-13 23:28:06,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:28:06,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:28:06,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:28:06,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:28:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:28:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:28:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:28:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:28:07,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:28:07,086 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:28:07,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:28:07 BoogieIcfgContainer [2021-11-13 23:28:07,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:28:07,090 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:28:07,090 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:28:07,100 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:28:07,100 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:28:07" (1/1) ... [2021-11-13 23:28:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:28:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:28:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2021-11-13 23:28:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-11-13 23:28:07,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:28:07,200 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:28:07,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:28:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:28:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:28:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:28:07,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2021-11-13 23:28:07,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-11-13 23:28:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:28:07,419 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:28:07,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:28:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:28:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:28:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:28:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2021-11-13 23:28:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2021-11-13 23:28:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:28:07,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:28:07,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:28:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:28:07,549 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:28:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:28:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:28:07,614 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:28:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:28:07,661 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-11-13 23:28:07,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:28:07 ImpRootNode [2021-11-13 23:28:07,689 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:28:07,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:28:07,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:28:07,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:28:07,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:28:07" (3/4) ... [2021-11-13 23:28:07,693 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 23:28:07,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebe1a05-af57-46c7-8f8b-2b930afb393a/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:28:07,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:28:07,745 INFO L158 Benchmark]: Toolchain (without parser) took 1357.12ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 70.9MB in the beginning and 97.3MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:28:07,746 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:28:07,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.73ms. Allocated memory is still 102.8MB. Free memory was 70.7MB in the beginning and 77.8MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:28:07,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.43ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 76.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:28:07,748 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 75.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:28:07,749 INFO L158 Benchmark]: RCFGBuilder took 354.25ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 64.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 23:28:07,753 INFO L158 Benchmark]: CodeCheck took 599.62ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.8MB in the beginning and 99.3MB in the end (delta: -34.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:28:07,753 INFO L158 Benchmark]: Witness Printer took 49.19ms. Allocated memory is still 123.7MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:28:07,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 54.66ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 43.60ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 8 mSDtfsCounter, 25 mSolverCounterSat, 1.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int n = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] _Bool flag = __VERIFIER_nondet_bool(); [L24] i=0 VAL [i=0, k=2147483647, n=1] [L25] COND FALSE !(!(n>0 && n<10)) VAL [i=0, k=2147483647, n=1] [L26] COND TRUE i