./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_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/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_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/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 [2020-11-29 18:32:46,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:32:46,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:32:47,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:32:47,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:32:47,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:32:47,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:32:47,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:32:47,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:32:47,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:32:47,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:32:47,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:32:47,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:32:47,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:32:47,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:32:47,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:32:47,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:32:47,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:32:47,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:32:47,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:32:47,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:32:47,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:32:47,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:32:47,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:32:47,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:32:47,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:32:47,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:32:47,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:32:47,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:32:47,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:32:47,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:32:47,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:32:47,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:32:47,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:32:47,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:32:47,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:32:47,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:32:47,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:32:47,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:32:47,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:32:47,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:32:47,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 18:32:47,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:32:47,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:32:47,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 18:32:47,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 18:32:47,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:32:47,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:32:47,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:32:47,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:32:47,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:32:47,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:32:47,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:32:47,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:32:47,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:32:47,221 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 18:32:47,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:32:47,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:32:47,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:32:47,222 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 18:32:47,223 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 18:32:47,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:32:47,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:32:47,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:32:47,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:32:47,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:32:47,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:32:47,225 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 18:32:47,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:32:47,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:32:47,225 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_2874ac54-24da-49a2-84ee-c5c84d3767b4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2020-11-29 18:32:47,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:32:47,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:32:47,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:32:47,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:32:47,619 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:32:47,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2020-11-29 18:32:47,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/data/300b8e93d/f94029a44065478ea79dc531a1c964c3/FLAGcd58b3658 [2020-11-29 18:32:48,329 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:32:48,330 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2020-11-29 18:32:48,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/data/300b8e93d/f94029a44065478ea79dc531a1c964c3/FLAGcd58b3658 [2020-11-29 18:32:48,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/data/300b8e93d/f94029a44065478ea79dc531a1c964c3 [2020-11-29 18:32:48,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:32:48,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:32:48,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:32:48,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:32:48,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:32:48,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:32:48" (1/1) ... [2020-11-29 18:32:48,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e46842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:48, skipping insertion in model container [2020-11-29 18:32:48,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:32:48" (1/1) ... [2020-11-29 18:32:48,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:32:48,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:32:48,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:32:48,955 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:32:49,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:32:49,019 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:32:49,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49 WrapperNode [2020-11-29 18:32:49,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:32:49,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:32:49,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:32:49,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:32:49,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:32:49,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:32:49,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:32:49,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:32:49,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:32:49,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:32:49,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:32:49,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:32:49,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/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 [2020-11-29 18:32:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:32:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:32:49,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:32:49,531 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 18:32:49,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:32:49 BoogieIcfgContainer [2020-11-29 18:32:49,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:32:49,535 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 18:32:49,542 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 18:32:49,563 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 18:32:49,563 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:32:49" (1/1) ... [2020-11-29 18:32:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:32:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-29 18:32:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 18:32:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:32:49,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:50,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-11-29 18:32:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-29 18:32:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:32:50,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2020-11-29 18:32:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2020-11-29 18:32:50,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:32:50,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-11-29 18:32:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-29 18:32:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:32:50,538 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-29 18:32:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-29 18:32:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:32:50,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:51,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2020-11-29 18:32:51,426 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-11-29 18:32:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:32:51,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-11-29 18:32:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-11-29 18:32:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:32:52,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-11-29 18:32:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-11-29 18:32:53,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:32:53,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2020-11-29 18:32:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-29 18:32:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:32:54,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-11-29 18:32:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-11-29 18:32:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:32:55,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2020-11-29 18:32:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2020-11-29 18:32:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:32:56,228 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 44 states and 59 transitions. [2020-11-29 18:32:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2020-11-29 18:32:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:32:57,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2020-11-29 18:32:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2020-11-29 18:32:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:32:57,966 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:32:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:32:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 46 transitions. [2020-11-29 18:32:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-11-29 18:32:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:32:59,088 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:32:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:32:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:33:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:33:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 42 states and 50 transitions. [2020-11-29 18:33:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-11-29 18:33:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 18:33:00,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:33:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:33:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-29 18:33:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:33:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-11-29 18:33:01,072 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-29 18:33:01,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 18:33:01,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:33:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:33:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-29 18:33:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:33:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-29 18:33:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-29 18:33:02,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:33:02,029 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2020-11-29 18:33:02,049 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-29 18:33:02,120 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 18:33:02,124 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-29 18:33:02,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 06:33:02 ImpRootNode [2020-11-29 18:33:02,138 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 18:33:02,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:33:02,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:33:02,140 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:33:02,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:32:49" (3/4) ... [2020-11-29 18:33:02,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:33:02,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 18:33:02,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:33:02,169 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:33:02,221 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2874ac54-24da-49a2-84ee-c5c84d3767b4/bin/ukojak/witness.graphml [2020-11-29 18:33:02,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:33:02,224 INFO L168 Benchmark]: Toolchain (without parser) took 13520.33 ms. Allocated memory was 104.9 MB in the beginning and 220.2 MB in the end (delta: 115.3 MB). Free memory was 72.6 MB in the beginning and 167.9 MB in the end (delta: -95.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:02,225 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 67.1 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:33:02,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.87 ms. Allocated memory is still 104.9 MB. Free memory was 72.4 MB in the beginning and 83.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:02,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:33:02,227 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.1 MB in the end (delta: 616.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:33:02,227 INFO L168 Benchmark]: RCFGBuilder took 414.02 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 70.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:02,228 INFO L168 Benchmark]: CodeCheck took 12602.84 ms. Allocated memory was 104.9 MB in the beginning and 220.2 MB in the end (delta: 115.3 MB). Free memory was 70.3 MB in the beginning and 170.0 MB in the end (delta: -99.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:02,229 INFO L168 Benchmark]: Witness Printer took 82.42 ms. Allocated memory is still 220.2 MB. Free memory was 170.0 MB in the beginning and 167.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:02,233 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: 12.4s, OverallIterations: 17, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 376328 SDslu, 0 SDs, 0 SdLazy, 2179380 SolverSat, 492544 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1774 GetRequests, 1503 SyntacticMatches, 111 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11493 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s 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 0.35 ms. Allocated memory is still 67.1 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.87 ms. Allocated memory is still 104.9 MB. Free memory was 72.4 MB in the beginning and 83.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.1 MB in the end (delta: 616.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 414.02 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 70.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 12602.84 ms. Allocated memory was 104.9 MB in the beginning and 220.2 MB in the end (delta: 115.3 MB). Free memory was 70.3 MB in the beginning and 170.0 MB in the end (delta: -99.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Witness Printer took 82.42 ms. Allocated memory is still 220.2 MB. Free memory was 170.0 MB in the beginning and 167.9 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...