./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak --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 687269bb6882b72a3d48999f1e5c55a1d5283a94 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:20:31,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:20:31,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:20:31,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:20:31,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:20:31,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:20:31,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:20:31,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:20:31,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:20:31,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:20:31,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:20:31,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:20:31,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:20:31,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:20:31,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:20:31,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:20:31,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:20:31,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:20:31,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:20:31,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:20:31,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:20:31,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:20:31,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:20:31,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:20:31,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:20:31,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:20:31,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:20:31,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:20:31,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:20:31,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:20:31,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:20:31,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:20:31,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:20:31,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:20:31,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:20:31,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:20:31,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:20:31,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:20:31,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:20:31,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:20:31,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:20:31,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 01:20:31,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:20:31,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:20:31,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:20:31,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:20:31,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:20:31,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:20:31,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:20:31,717 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:20:31,718 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:20:31,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:20:31,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:20:31,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:20:31,719 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:20:31,719 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:20:31,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:20:31,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:20:31,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:20:31,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:20:31,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:20:31,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:20:31,721 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:20:31,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:20:31,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:20:31,721 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-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2020-11-30 01:20:32,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:20:32,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:20:32,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:20:32,036 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:20:32,037 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:20:32,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-11-30 01:20:32,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/data/a7ada53ff/b613eed131de406987008fc392f4d4b3/FLAG677a0c6e5 [2020-11-30 01:20:32,634 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:20:32,635 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-11-30 01:20:32,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/data/a7ada53ff/b613eed131de406987008fc392f4d4b3/FLAG677a0c6e5 [2020-11-30 01:20:33,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/data/a7ada53ff/b613eed131de406987008fc392f4d4b3 [2020-11-30 01:20:33,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:20:33,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:20:33,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:33,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:20:33,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:20:33,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f80fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33, skipping insertion in model container [2020-11-30 01:20:33,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:20:33,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:20:33,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:33,213 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:20:33,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:33,237 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:20:33,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33 WrapperNode [2020-11-30 01:20:33,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:33,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:33,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:20:33,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:20:33,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:33,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:20:33,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:20:33,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:20:33,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:20:33,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:20:33,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:20:33,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:20:33,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:20:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:20:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:20:33,642 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:20:33,642 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:20:33,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:33 BoogieIcfgContainer [2020-11-30 01:20:33,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:20:33,645 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:20:33,645 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:20:33,659 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:20:33,659 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:33" (1/1) ... [2020-11-30 01:20:33,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2020-11-30 01:20:33,735 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-11-30 01:20:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:20:33,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2020-11-30 01:20:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-30 01:20:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:20:33,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2020-11-30 01:20:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-11-30 01:20:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:20:34,157 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2020-11-30 01:20:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2020-11-30 01:20:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:20:34,227 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2020-11-30 01:20:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2020-11-30 01:20:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:20:34,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2020-11-30 01:20:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2020-11-30 01:20:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:20:34,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2020-11-30 01:20:34,770 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2020-11-30 01:20:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:20:34,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 58 transitions. [2020-11-30 01:20:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2020-11-30 01:20:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:20:34,840 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 44 states and 61 transitions. [2020-11-30 01:20:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions. [2020-11-30 01:20:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:20:34,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2020-11-30 01:20:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2020-11-30 01:20:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:20:35,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2020-11-30 01:20:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2020-11-30 01:20:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:20:35,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:20:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2020-11-30 01:20:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-11-30 01:20:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:20:35,442 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:20:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:20:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:20:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2020-11-30 01:20:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-11-30 01:20:35,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:20:35,485 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2020-11-30 01:20:35,491 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-30 01:20:35,630 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 01:20:35,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:20:35 ImpRootNode [2020-11-30 01:20:35,642 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:20:35,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:20:35,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:20:35,645 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:20:35,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:33" (3/4) ... [2020-11-30 01:20:35,651 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:20:35,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:20:35,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:20:35,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:20:35,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c747b03-fa6f-4d4c-b29a-f7ff8102c7d4/bin/ukojak/witness.graphml [2020-11-30 01:20:35,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:20:35,712 INFO L168 Benchmark]: Toolchain (without parser) took 2689.45 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 84.9 MB in the beginning and 73.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,713 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:35,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.7 MB in the beginning and 92.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 115.3 MB. Free memory was 92.1 MB in the beginning and 90.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:20:35,715 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 906.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,716 INFO L168 Benchmark]: RCFGBuilder took 349.27 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 77.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,717 INFO L168 Benchmark]: CodeCheck took 1997.68 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 77.8 MB in the beginning and 76.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,717 INFO L168 Benchmark]: Witness Printer took 65.72 ms. Allocated memory is still 138.4 MB. Free memory was 76.2 MB in the beginning and 73.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:20:35,721 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, 24 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12288 SDtfs, 32688 SDslu, 23084 SDs, 0 SdLazy, 95840 SolverSat, 17676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 762 GetRequests, 706 SyntacticMatches, 20 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 1310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 11/11 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.7 MB in the beginning and 92.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 115.3 MB. Free memory was 92.1 MB in the beginning and 90.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.86 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 906.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 349.27 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 77.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1997.68 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 77.8 MB in the beginning and 76.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * Witness Printer took 65.72 ms. Allocated memory is still 138.4 MB. Free memory was 76.2 MB in the beginning and 73.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...