./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI --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 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:33:20,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:33:20,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:33:20,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:33:20,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:33:20,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:33:20,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:33:20,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:33:20,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:33:20,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:33:20,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:33:20,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:33:20,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:33:20,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:33:20,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:33:20,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:33:20,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:33:20,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:33:20,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:33:20,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:33:20,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:33:20,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:33:20,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:33:20,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:33:20,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:33:20,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:33:20,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:33:20,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:33:20,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:33:20,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:33:20,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:33:20,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:33:20,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:33:20,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:33:20,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:33:20,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:33:20,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:33:20,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:33:20,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:33:20,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:33:20,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:33:20,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-29 03:33:20,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:33:20,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:33:20,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:33:20,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:33:20,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:33:20,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:33:20,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:33:20,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:33:20,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:33:20,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:33:20,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:33:20,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:33:20,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:33:20,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:33:20,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:33:20,667 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:33:20,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:33:20,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:33:20,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:33:20,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:33:20,668 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:33:20,668 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:33:20,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:33:20,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:33:20,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:33:20,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:33:20,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:33:20,670 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:33:20,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:33:20,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:33:20,670 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_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 [2021-10-29 03:33:20,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:33:20,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:33:20,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:33:20,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:33:20,967 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:33:20,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2021-10-29 03:33:21,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/data/474405c08/d56630c8411f41a7a7a7cba269e4e0ae/FLAGd43acb6c0 [2021-10-29 03:33:21,519 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:33:21,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2021-10-29 03:33:21,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/data/474405c08/d56630c8411f41a7a7a7cba269e4e0ae/FLAGd43acb6c0 [2021-10-29 03:33:21,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/data/474405c08/d56630c8411f41a7a7a7cba269e4e0ae [2021-10-29 03:33:21,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:33:21,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:33:21,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:33:21,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:33:21,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:33:21,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:33:21" (1/1) ... [2021-10-29 03:33:21,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c06284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:21, skipping insertion in model container [2021-10-29 03:33:21,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:33:21" (1/1) ... [2021-10-29 03:33:21,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:33:21,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:33:22,116 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_c7832159-dfa5-443e-b09e-9265c52eeba0/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2021-10-29 03:33:22,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:33:22,135 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:33:22,148 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_c7832159-dfa5-443e-b09e-9265c52eeba0/sv-benchmarks/c/loop-zilu/benchmark07_linear.i[868,881] [2021-10-29 03:33:22,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:33:22,167 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:33:22,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22 WrapperNode [2021-10-29 03:33:22,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:33:22,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:33:22,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:33:22,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:33:22,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:33:22,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:33:22,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:33:22,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:33:22,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:33:22,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:33:22,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:33:22,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:33:22,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:33:22,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:33:22,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:33:22,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:33:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:33:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:33:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:33:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:33:22,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:33:22,702 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:33:22,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:22 BoogieIcfgContainer [2021-10-29 03:33:22,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:33:22,710 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:33:22,710 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:33:22,730 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:33:22,731 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:22" (1/1) ... [2021-10-29 03:33:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:33:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2021-10-29 03:33:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-29 03:33:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:33:22,807 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:22,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2021-10-29 03:33:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-10-29 03:33:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:33:23,077 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:23,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:33:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:33:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:33:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2021-10-29 03:33:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2021-10-29 03:33:23,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:33:23,128 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:33:23,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:33:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:23,165 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:33:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:23,231 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:33:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:33:23,257 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-10-29 03:33:23,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:33:23 ImpRootNode [2021-10-29 03:33:23,289 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:33:23,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:33:23,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:33:23,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:33:23,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:33:22" (3/4) ... [2021-10-29 03:33:23,294 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:33:23,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7832159-dfa5-443e-b09e-9265c52eeba0/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:33:23,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:33:23,352 INFO L168 Benchmark]: Toolchain (without parser) took 1456.21 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 59.9 MB in the beginning and 57.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,353 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 48.9 MB in the beginning and 48.8 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:33:23,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.95 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 59.8 MB in the beginning and 91.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 115.3 MB. Free memory was 91.5 MB in the beginning and 90.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,355 INFO L168 Benchmark]: Boogie Preprocessor took 21.96 ms. Allocated memory is still 115.3 MB. Free memory was 90.5 MB in the beginning and 89.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:33:23,356 INFO L168 Benchmark]: RCFGBuilder took 470.34 ms. Allocated memory is still 115.3 MB. Free memory was 89.4 MB in the beginning and 78.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,356 INFO L168 Benchmark]: CodeCheck took 579.54 ms. Allocated memory is still 115.3 MB. Free memory was 77.4 MB in the beginning and 59.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,357 INFO L168 Benchmark]: Witness Printer took 59.66 ms. Allocated memory is still 115.3 MB. Free memory was 59.6 MB in the beginning and 57.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:33:23,362 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: 0.4s, 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: 8 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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, 0.0s 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 [L25] COND FALSE !(!(n>0 && n<10)) [L26] COND TRUE i