./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0233d496bfaf5cb1311bfa260a57f41458184795 .......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:34:53,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:34:53,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:34:53,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:34:53,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:34:53,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:34:53,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:34:53,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:34:53,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:34:53,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:34:53,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:34:53,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:34:53,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:34:53,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:34:53,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:34:53,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:34:53,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:34:53,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:34:53,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:34:53,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:34:53,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:34:53,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:34:53,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:34:53,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:34:53,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:34:53,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:34:53,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:34:53,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:34:53,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:34:53,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:34:53,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:34:53,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:34:53,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:34:53,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:34:53,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:34:53,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:34:53,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:34:53,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:34:53,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:34:53,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:34:53,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:34:53,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 10:34:53,128 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:34:53,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:34:53,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:34:53,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:34:53,130 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:34:53,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:34:53,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:34:53,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:34:53,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:34:53,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:34:53,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:34:53,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:34:53,131 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 10:34:53,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:34:53,131 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:34:53,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:34:53,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:34:53,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:34:53,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:34:53,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:34:53,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:34:53,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:34:53,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:34:53,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:34:53,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:34:53,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:34:53,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:34:53,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer 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 -> Automizer 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 -> 0233d496bfaf5cb1311bfa260a57f41458184795 [2019-11-20 10:34:53,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:34:53,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:34:53,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:34:53,299 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:34:53,301 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:34:53,302 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2019-11-20 10:34:53,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/data/31ca8ac99/bbe0d826b52e4028972251e5f1280177/FLAGbfbb50049 [2019-11-20 10:34:53,784 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:34:53,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2019-11-20 10:34:53,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/data/31ca8ac99/bbe0d826b52e4028972251e5f1280177/FLAGbfbb50049 [2019-11-20 10:34:53,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/data/31ca8ac99/bbe0d826b52e4028972251e5f1280177 [2019-11-20 10:34:53,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:34:53,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:34:53,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:34:53,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:34:53,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:34:53,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:53" (1/1) ... [2019-11-20 10:34:53,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcc30d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:53, skipping insertion in model container [2019-11-20 10:34:53,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:53" (1/1) ... [2019-11-20 10:34:53,832 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:34:53,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:34:53,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:34:54,069 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:34:54,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:34:54,099 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:34:54,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54 WrapperNode [2019-11-20 10:34:54,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:34:54,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:34:54,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:34:54,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:34:54,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:34:54,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:34:54,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:34:54,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:34:54,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... [2019-11-20 10:34:54,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:34:54,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:34:54,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:34:54,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:34:54,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2019-11-20 10:34:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:34:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:34:54,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:34:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:34:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:34:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:34:54,558 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:34:54,559 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 10:34:54,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:54 BoogieIcfgContainer [2019-11-20 10:34:54,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:34:54,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:34:54,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:34:54,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:34:54,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:34:53" (1/3) ... [2019-11-20 10:34:54,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a3149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:54, skipping insertion in model container [2019-11-20 10:34:54,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:54" (2/3) ... [2019-11-20 10:34:54,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a3149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:54, skipping insertion in model container [2019-11-20 10:34:54,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:54" (3/3) ... [2019-11-20 10:34:54,568 INFO L109 eAbstractionObserver]: Analyzing ICFG 4BitCounterPointer.c [2019-11-20 10:34:54,577 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:34:54,589 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-20 10:34:54,600 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-20 10:34:54,627 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:34:54,627 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:34:54,628 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:34:54,628 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:34:54,628 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:34:54,628 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:34:54,628 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:34:54,629 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:34:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 10:34:54,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:34:54,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2019-11-20 10:34:54,699 INFO L447 ceAbstractionStarter]: At program point L33(lines 6 34) the Hoare annotation is: true [2019-11-20 10:34:54,699 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:34:54,699 INFO L444 ceAbstractionStarter]: For program point L15-1(lines 15 32) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L444 ceAbstractionStarter]: For program point L15-3(lines 15 32) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-20 10:34:54,700 INFO L447 ceAbstractionStarter]: At program point L24-2(lines 15 32) the Hoare annotation is: true [2019-11-20 10:34:54,701 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 30) no Hoare annotation was computed. [2019-11-20 10:34:54,701 INFO L444 ceAbstractionStarter]: For program point L16(lines 16 31) no Hoare annotation was computed. [2019-11-20 10:34:54,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:34:54 BoogieIcfgContainer [2019-11-20 10:34:54,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:34:54,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:34:54,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:34:54,710 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:34:54,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:54" (3/4) ... [2019-11-20 10:34:54,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:34:54,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-20 10:34:54,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:34:54,726 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:34:54,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e4e39641-e083-463b-a4a8-41c8f8317312/bin/uautomizer/witness.graphml [2019-11-20 10:34:54,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:34:54,772 INFO L168 Benchmark]: Toolchain (without parser) took 958.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:34:54,773 INFO L168 Benchmark]: CDTParser took 1.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:34:54,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:34:54,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:34:54,774 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:34:54,775 INFO L168 Benchmark]: RCFGBuilder took 399.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:34:54,775 INFO L168 Benchmark]: TraceAbstraction took 148.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:34:54,776 INFO L168 Benchmark]: Witness Printer took 60.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:34:54,778 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 399.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Witness Printer took 60.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...