./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/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 e153b2922c94b2bcf8f70f9e86faabd543aefaed .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:02:04,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:02:04,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:02:04,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:02:04,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:02:04,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:02:04,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:02:04,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:02:04,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:02:04,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:02:04,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:02:04,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:02:04,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:02:04,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:02:04,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:02:04,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:02:04,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:02:04,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:02:04,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:02:04,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:02:04,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:02:04,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:02:04,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:02:04,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:02:04,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:02:04,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:02:04,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:02:04,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:02:04,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:02:04,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:02:04,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:02:04,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:02:04,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:02:04,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:02:04,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:02:04,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:02:04,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:02:04,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:02:04,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:02:04,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:02:04,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:02:04,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 11:02:04,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:02:04,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:02:04,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:02:04,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:02:04,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:02:04,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:02:04,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:02:04,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:02:04,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:02:04,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:02:04,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:02:04,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:02:04,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:02:04,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:02:04,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:02:04,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:02:04,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:02:04,805 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:02:04,805 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:02:04,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:02:04,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:02:04,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:02:04,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:02:04,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:02:04,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:02:04,808 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:02:04,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:02:04,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:02:04,808 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_37663b03-b7ef-47b2-b436-5cb3523374f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2020-12-03 11:02:05,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:02:05,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:02:05,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:02:05,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:02:05,076 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:02:05,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-12-03 11:02:05,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/data/24fb9d1a8/91b5e80766f34f07affd34101c2dacdc/FLAGb729159d8 [2020-12-03 11:02:05,724 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:02:05,724 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-12-03 11:02:05,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/data/24fb9d1a8/91b5e80766f34f07affd34101c2dacdc/FLAGb729159d8 [2020-12-03 11:02:06,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/data/24fb9d1a8/91b5e80766f34f07affd34101c2dacdc [2020-12-03 11:02:06,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:02:06,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:02:06,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:02:06,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:02:06,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:02:06,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176a0e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06, skipping insertion in model container [2020-12-03 11:02:06,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:02:06,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:02:06,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:02:06,302 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:02:06,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:02:06,334 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:02:06,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06 WrapperNode [2020-12-03 11:02:06,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:02:06,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:02:06,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:02:06,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:02:06,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:02:06,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:02:06,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:02:06,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:02:06,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:02:06,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:02:06,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:02:06,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:02:06,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/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 [2020-12-03 11:02:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:02:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:02:06,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:02:06,684 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 11:02:06,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:06 BoogieIcfgContainer [2020-12-03 11:02:06,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:02:06,687 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:02:06,687 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:02:06,702 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:02:06,702 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:06" (1/1) ... [2020-12-03 11:02:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:02:06,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:06,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-03 11:02:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-03 11:02:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:02:06,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-03 11:02:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-03 11:02:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:02:06,907 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-12-03 11:02:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-12-03 11:02:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:02:06,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-12-03 11:02:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-12-03 11:02:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:02:07,116 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-03 11:02:07,214 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-03 11:02:07,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 11:02:07,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 11:02:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-03 11:02:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-03 11:02:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 11:02:07,358 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:07,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-12-03 11:02:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-12-03 11:02:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 11:02:07,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 11:02:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-03 11:02:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-03 11:02:07,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:02:07,839 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-03 11:02:07,845 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 11:02:07,930 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-03 11:02:07,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:02:07 ImpRootNode [2020-12-03 11:02:07,946 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:02:07,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:02:07,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:02:07,948 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:02:07,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:06" (3/4) ... [2020-12-03 11:02:07,952 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:02:07,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 11:02:07,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-03 11:02:07,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:02:08,030 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37663b03-b7ef-47b2-b436-5cb3523374f4/bin/ukojak/witness.graphml [2020-12-03 11:02:08,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:02:08,035 INFO L168 Benchmark]: Toolchain (without parser) took 1914.72 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.8 MB in the beginning and 52.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:08,036 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 86.0 MB. Free memory was 44.2 MB in the beginning and 44.2 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:08,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.40 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 66.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:08,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.66 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 65.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:08,038 INFO L168 Benchmark]: Boogie Preprocessor took 19.64 ms. Allocated memory is still 86.0 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 832.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:08,038 INFO L168 Benchmark]: RCFGBuilder took 272.09 ms. Allocated memory is still 86.0 MB. Free memory was 63.8 MB in the beginning and 53.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:08,039 INFO L168 Benchmark]: CodeCheck took 1259.28 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 54.8 MB in the end (delta: -1.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:08,040 INFO L168 Benchmark]: Witness Printer took 85.10 ms. Allocated memory is still 104.9 MB. Free memory was 54.8 MB in the beginning and 52.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:08,048 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 724 SDslu, 530 SDs, 0 SdLazy, 1916 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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: 13]: Loop Invariant Derived loop invariant: 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 86.0 MB. Free memory was 44.2 MB in the beginning and 44.2 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.40 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 66.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.66 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 65.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.64 ms. Allocated memory is still 86.0 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 832.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 272.09 ms. Allocated memory is still 86.0 MB. Free memory was 63.8 MB in the beginning and 53.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1259.28 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 54.8 MB in the end (delta: -1.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Witness Printer took 85.10 ms. Allocated memory is still 104.9 MB. Free memory was 54.8 MB in the beginning and 52.7 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...