./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/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_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/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 64bit --witnessprinter.graph.data.programhash 611ac8d71845ccf9a512fc72d6bc3a2815b4d05a21509285be3f30b1f4275a4d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:54:36,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:54:36,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:54:36,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:54:36,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:54:36,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:54:36,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:54:36,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:54:36,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:54:36,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:54:36,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:54:36,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:54:36,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:54:36,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:54:36,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:54:36,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:54:36,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:54:36,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:54:36,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:54:36,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:54:36,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:54:36,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:54:36,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:54:36,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:54:36,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:54:36,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:54:36,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:54:36,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:54:36,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:54:36,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:54:36,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:54:36,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:54:36,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:54:36,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:54:36,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:54:36,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:54:36,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:54:36,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:54:36,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:54:36,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:54:36,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:54:36,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 23:54:36,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:54:36,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:54:36,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:54:36,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:54:36,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:54:36,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:54:36,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:54:36,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:54:36,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:54:36,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:54:36,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:54:36,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:54:36,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:54:36,864 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:54:36,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:54:36,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:54:36,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:54:36,870 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:54:36,870 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:54:36,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:54:36,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:54:36,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:54:36,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:54:36,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:54:36,872 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:54:36,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:54:36,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:54:36,873 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_34e2ed27-1c6c-4024-82a2-de85709f5e47/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 611ac8d71845ccf9a512fc72d6bc3a2815b4d05a21509285be3f30b1f4275a4d [2021-11-13 23:54:37,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:54:37,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:54:37,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:54:37,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:54:37,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:54:37,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Gothenburg_v2-2.c [2021-11-13 23:54:37,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/data/1e1452586/ae5a8206a22a4ad7bee5ac72defbb1c6/FLAGbf9868528 [2021-11-13 23:54:37,789 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:54:37,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/sv-benchmarks/c/termination-crafted/Gothenburg_v2-2.c [2021-11-13 23:54:37,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/data/1e1452586/ae5a8206a22a4ad7bee5ac72defbb1c6/FLAGbf9868528 [2021-11-13 23:54:38,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/data/1e1452586/ae5a8206a22a4ad7bee5ac72defbb1c6 [2021-11-13 23:54:38,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:54:38,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:54:38,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:54:38,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:54:38,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:54:38,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2681495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38, skipping insertion in model container [2021-11-13 23:54:38,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:54:38,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:54:38,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:54:38,473 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:54:38,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:54:38,513 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:54:38,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38 WrapperNode [2021-11-13 23:54:38,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:54:38,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:54:38,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:54:38,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:54:38,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:54:38,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:54:38,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:54:38,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:54:38,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:54:38,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:54:38,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:54:38,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:54:38,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:54:38" (1/1) ... [2021-11-13 23:54:38,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:54:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:54:38,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:54:38,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:54:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:54:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:54:39,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:54:39,014 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:54:39,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:54:39 BoogieIcfgContainer [2021-11-13 23:54:39,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:54:39,023 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:54:39,024 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:54:39,034 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:54:39,035 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:54:39" (1/1) ... [2021-11-13 23:54:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:54:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:54:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2021-11-13 23:54:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-13 23:54:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-13 23:54:39,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:54:39,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:54:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:54:39,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:54:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:54:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:54:39,214 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:54:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:54:39,230 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-13 23:54:39,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:54:39 ImpRootNode [2021-11-13 23:54:39,257 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:54:39,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:54:39,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:54:39,260 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:54:39,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:54:39" (3/4) ... [2021-11-13 23:54:39,263 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 23:54:39,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:54:39,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:54:39,306 INFO L158 Benchmark]: Toolchain (without parser) took 1136.23ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 72.2MB in the end (delta: 14.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,311 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory was 36.2MB in the beginning and 36.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:54:39,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.98ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 95.6MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.45ms. Allocated memory is still 119.5MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:54:39,314 INFO L158 Benchmark]: Boogie Preprocessor took 41.91ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,314 INFO L158 Benchmark]: RCFGBuilder took 427.04ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,315 INFO L158 Benchmark]: CodeCheck took 234.15ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 73.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,318 INFO L158 Benchmark]: Witness Printer took 44.60ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 72.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:54:39,324 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, 33 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 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, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x, y, a, b; [L14] a = __VERIFIER_nondet_int() [L15] b = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] b + 1 VAL [a=0, b=2147483647, x=0, y=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory was 36.2MB in the beginning and 36.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.98ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 95.6MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.45ms. Allocated memory is still 119.5MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.91ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.04ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 234.15ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 73.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 44.60ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 72.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 23:54:39,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e2ed27-1c6c-4024-82a2-de85709f5e47/bin/ukojak-2xVlg8857e/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)