./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.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_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:33:15,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:15,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:15,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:15,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:15,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:15,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:15,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:15,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:15,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:15,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:15,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:15,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:15,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:15,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:15,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:15,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:15,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:15,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:15,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:15,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:15,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:15,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:15,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:15,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:15,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:15,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:15,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:15,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:15,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:15,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:15,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:15,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:15,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:15,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:15,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:15,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:15,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:15,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:15,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:15,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:15,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:33:15,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:15,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:15,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:15,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:15,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:15,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:15,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:15,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:33:15,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:15,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:15,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:15,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:15,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:15,796 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:33:15,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:15,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:15,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:15,797 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:15,797 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:15,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:15,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:15,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:15,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:15,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:15,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:15,798 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:15,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:15,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:15,799 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_b648fbe5-0893-49a0-9087-05c90c521ca5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2020-11-28 04:33:16,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:16,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:16,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:16,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:16,092 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:16,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2020-11-28 04:33:16,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/data/06b750c20/e5d1d0a2add84d2c891fa2f7ee2dd226/FLAG11cbe146b [2020-11-28 04:33:16,702 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:16,703 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2020-11-28 04:33:16,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/data/06b750c20/e5d1d0a2add84d2c891fa2f7ee2dd226/FLAG11cbe146b [2020-11-28 04:33:17,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/data/06b750c20/e5d1d0a2add84d2c891fa2f7ee2dd226 [2020-11-28 04:33:17,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:17,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:17,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:17,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:17,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:17,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b427d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17, skipping insertion in model container [2020-11-28 04:33:17,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:17,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:17,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:17,306 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:17,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:17,355 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:17,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17 WrapperNode [2020-11-28 04:33:17,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:17,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:17,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:17,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:17,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:17,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:17,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:17,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:17,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:17,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:17,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:17,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:17,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/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 [2020-11-28 04:33:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:17,805 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:17,805 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:33:17,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:17 BoogieIcfgContainer [2020-11-28 04:33:17,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:17,808 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:17,808 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:17,821 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:17,821 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:17" (1/1) ... [2020-11-28 04:33:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:17,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:33:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:33:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:33:17,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-11-28 04:33:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-28 04:33:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:33:18,250 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2020-11-28 04:33:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2020-11-28 04:33:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:18,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-11-28 04:33:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-28 04:33:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:19,021 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-28 04:33:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 04:33:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:19,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:19,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2020-11-28 04:33:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-11-28 04:33:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:19,887 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:20,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-11-28 04:33:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-11-28 04:33:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:20,633 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2020-11-28 04:33:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2020-11-28 04:33:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:21,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2020-11-28 04:33:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-28 04:33:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:22,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-11-28 04:33:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-11-28 04:33:22,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:22,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:23,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2020-11-28 04:33:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2020-11-28 04:33:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:23,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 44 states and 59 transitions. [2020-11-28 04:33:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2020-11-28 04:33:24,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:24,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2020-11-28 04:33:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2020-11-28 04:33:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:33:24,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:25,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 46 transitions. [2020-11-28 04:33:25,611 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-11-28 04:33:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:33:25,617 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 42 states and 50 transitions. [2020-11-28 04:33:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-11-28 04:33:26,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:33:26,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 04:33:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-11-28 04:33:27,144 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-28 04:33:27,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:33:27,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 04:33:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-28 04:33:27,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-28 04:33:27,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:33:27,910 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2020-11-28 04:33:27,916 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:33:27,970 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:33:27,973 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-28 04:33:27,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:27 ImpRootNode [2020-11-28 04:33:27,980 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:27,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:27,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:27,982 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:27,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:17" (3/4) ... [2020-11-28 04:33:27,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:33:27,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:33:27,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:33:27,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:33:28,035 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b648fbe5-0893-49a0-9087-05c90c521ca5/bin/ukojak/witness.graphml [2020-11-28 04:33:28,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:28,037 INFO L168 Benchmark]: Toolchain (without parser) took 10945.04 ms. Allocated memory was 94.4 MB in the beginning and 211.8 MB in the end (delta: 117.4 MB). Free memory was 68.6 MB in the beginning and 98.4 MB in the end (delta: -29.8 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,038 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.65 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 68.3 MB in the beginning and 126.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 146.8 MB. Free memory was 126.0 MB in the beginning and 124.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,040 INFO L168 Benchmark]: Boogie Preprocessor took 17.19 ms. Allocated memory is still 146.8 MB. Free memory was 124.6 MB in the beginning and 123.7 MB in the end (delta: 931.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,040 INFO L168 Benchmark]: RCFGBuilder took 402.77 ms. Allocated memory is still 146.8 MB. Free memory was 123.7 MB in the beginning and 112.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,041 INFO L168 Benchmark]: CodeCheck took 10171.92 ms. Allocated memory was 146.8 MB in the beginning and 211.8 MB in the end (delta: 65.0 MB). Free memory was 112.6 MB in the beginning and 100.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,042 INFO L168 Benchmark]: Witness Printer took 54.31 ms. Allocated memory is still 211.8 MB. Free memory was 100.5 MB in the beginning and 98.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,049 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, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 17, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 375816 SDslu, 0 SDs, 0 SdLazy, 2178868 SolverSat, 492544 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1774 GetRequests, 1503 SyntacticMatches, 111 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11482 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10674 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 42/159 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= y2 && y2 <= 2147483647) && y1 <= 2147483647) && 0 <= y1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.65 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 68.3 MB in the beginning and 126.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 146.8 MB. Free memory was 126.0 MB in the beginning and 124.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.19 ms. Allocated memory is still 146.8 MB. Free memory was 124.6 MB in the beginning and 123.7 MB in the end (delta: 931.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 402.77 ms. Allocated memory is still 146.8 MB. Free memory was 123.7 MB in the beginning and 112.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 10171.92 ms. Allocated memory was 146.8 MB in the beginning and 211.8 MB in the end (delta: 65.0 MB). Free memory was 112.6 MB in the beginning and 100.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 54.31 ms. Allocated memory is still 211.8 MB. Free memory was 100.5 MB in the beginning and 98.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...