./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.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_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/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 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:17:52,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:17:52,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:17:52,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:17:52,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:17:52,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:17:52,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:17:52,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:17:52,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:17:52,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:17:52,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:17:52,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:17:52,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:17:52,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:17:52,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:17:52,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:17:52,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:17:52,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:17:52,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:17:52,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:17:52,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:17:52,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:17:52,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:17:52,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:17:52,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:17:52,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:17:52,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:17:52,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:17:52,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:17:52,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:17:52,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:17:52,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:17:52,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:17:52,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:17:52,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:17:52,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:17:53,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:17:53,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:17:53,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:17:53,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:17:53,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:17:53,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:17:53,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:17:53,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:17:53,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:17:53,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:17:53,051 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:17:53,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:17:53,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:17:53,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:17:53,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:17:53,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:17:53,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:17:53,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:17:53,054 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:17:53,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:17:53,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:17:53,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:17:53,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:17:53,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:17:53,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:17:53,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:17:53,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:53,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:17:53,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:17:53,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:17:53,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:17:53,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:17:53,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:17:53,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:17:53,058 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_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 [2020-11-28 03:17:53,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:17:53,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:17:53,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:17:53,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:17:53,411 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:17:53,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-11-28 03:17:53,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/data/d2f1f0791/39db386f03944eb9b1b36cac42f54f81/FLAG675dd55a8 [2020-11-28 03:17:53,921 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:17:53,923 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-11-28 03:17:53,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/data/d2f1f0791/39db386f03944eb9b1b36cac42f54f81/FLAG675dd55a8 [2020-11-28 03:17:54,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/data/d2f1f0791/39db386f03944eb9b1b36cac42f54f81 [2020-11-28 03:17:54,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:17:54,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:17:54,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:54,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:17:54,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:17:54,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110e93b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:17:54,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:17:54,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:54,487 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:17:54,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:54,535 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:17:54,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54 WrapperNode [2020-11-28 03:17:54,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:54,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:54,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:17:54,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:17:54,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:54,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:17:54,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:17:54,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:17:54,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:17:54,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:17:54,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:17:54,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:17:54,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/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 [2020-11-28 03:17:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:54,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:54,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:54,830 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:17:54,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54 BoogieIcfgContainer [2020-11-28 03:17:54,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:54,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:17:54,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:17:54,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:17:54,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:54" (1/3) ... [2020-11-28 03:17:54,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c48385e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (2/3) ... [2020-11-28 03:17:54,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c48385e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54" (3/3) ... [2020-11-28 03:17:54,844 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore_v4.c [2020-11-28 03:17:54,855 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:17:54,859 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:17:54,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:17:54,906 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:17:54,906 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:17:54,906 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:17:54,906 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:54,906 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:54,907 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:17:54,907 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:54,907 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:17:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 03:17:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:17:54,929 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:54,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:17:54,930 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:17:54,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2020-11-28 03:17:54,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:54,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568576461] [2020-11-28 03:17:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:55,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568576461] [2020-11-28 03:17:55,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:55,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:55,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880545977] [2020-11-28 03:17:55,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:55,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:55,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:55,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:55,143 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-11-28 03:17:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:55,250 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-11-28 03:17:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:55,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:17:55,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:55,259 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:17:55,259 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 03:17:55,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 03:17:55,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-11-28 03:17:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:17:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 03:17:55,290 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2020-11-28 03:17:55,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:55,291 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-28 03:17:55,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 03:17:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:17:55,292 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:55,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:17:55,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:17:55,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:17:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:55,294 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2020-11-28 03:17:55,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:55,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013315001] [2020-11-28 03:17:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:55,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013315001] [2020-11-28 03:17:55,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:55,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:55,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67254493] [2020-11-28 03:17:55,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:17:55,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:17:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:17:55,387 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-11-28 03:17:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:55,451 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-28 03:17:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:17:55,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 03:17:55,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:55,452 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:17:55,452 INFO L226 Difference]: Without dead ends: 8 [2020-11-28 03:17:55,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:17:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-28 03:17:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-28 03:17:55,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:17:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-28 03:17:55,455 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-11-28 03:17:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:55,455 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-28 03:17:55,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:17:55,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-28 03:17:55,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:17:55,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:55,456 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-28 03:17:55,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:17:55,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:17:55,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:55,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2020-11-28 03:17:55,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:55,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526226306] [2020-11-28 03:17:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:55,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526226306] [2020-11-28 03:17:55,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64826332] [2020-11-28 03:17:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:55,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:17:55,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:55,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:17:55,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-28 03:17:55,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638991898] [2020-11-28 03:17:55,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:17:55,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:55,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:17:55,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:17:55,659 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2020-11-28 03:17:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:55,712 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-28 03:17:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:17:55,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-11-28 03:17:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:55,713 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:17:55,713 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:17:55,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:17:55,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:17:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:17:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:17:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:17:55,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-28 03:17:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:55,714 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:17:55,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:17:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:17:55,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:17:55,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:17:55,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:17:55,989 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 03:17:55,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:17:55,990 INFO L277 CegarLoopResult]: At program point L21(lines 10 22) the Hoare annotation is: true [2020-11-28 03:17:55,990 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~x~0 1) ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-28 03:17:55,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 03:17:55,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:17:55,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:17:55,990 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-28 03:17:55,991 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-28 03:17:55,991 INFO L274 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-11-28 03:17:55,991 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-11-28 03:17:56,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:56 BoogieIcfgContainer [2020-11-28 03:17:56,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:56,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:56,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:56,013 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:56,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54" (3/4) ... [2020-11-28 03:17:56,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:17:56,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 03:17:56,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:17:56,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d7117d3-ebca-4dc4-bf86-43f47d435759/bin/uautomizer/witness.graphml [2020-11-28 03:17:56,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:56,081 INFO L168 Benchmark]: Toolchain (without parser) took 1775.84 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.4 MB in the beginning and 90.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:56,081 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 94.4 MB. Free memory was 74.5 MB in the beginning and 74.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:56,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.87 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 72.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:56,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.77 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 70.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:56,083 INFO L168 Benchmark]: Boogie Preprocessor took 16.42 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 872.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:56,084 INFO L168 Benchmark]: RCFGBuilder took 251.08 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 61.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:56,084 INFO L168 Benchmark]: TraceAbstraction took 1177.26 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 63.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:56,085 INFO L168 Benchmark]: Witness Printer took 67.33 ms. Allocated memory is still 113.2 MB. Free memory was 63.4 MB in the beginning and 90.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:56,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 94.4 MB. Free memory was 74.5 MB in the beginning and 74.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.87 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 72.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.77 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 70.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.42 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 872.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 251.08 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 61.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1177.26 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 63.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Witness Printer took 67.33 ms. Allocated memory is still 113.2 MB. Free memory was 63.4 MB in the beginning and 90.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x + 1 <= y && y <= 2147483647 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...