./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 ............................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:14:45,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:14:45,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:14:45,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:14:45,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:14:45,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:14:45,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:14:45,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:14:45,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:14:45,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:14:45,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:14:45,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:14:45,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:14:45,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:14:45,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:14:45,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:14:45,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:14:45,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:14:45,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:14:45,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:14:45,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:14:45,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:14:45,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:14:45,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:14:45,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:14:45,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:14:45,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:14:45,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:14:45,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:14:45,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:14:45,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:14:45,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:14:45,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:14:45,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:14:45,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:14:45,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:14:45,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:14:45,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:14:45,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:14:45,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:14:45,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:14:45,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:14:45,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:14:45,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:14:45,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:14:45,687 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:14:45,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:14:45,688 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:14:45,689 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:14:45,689 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:14:45,689 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:14:45,689 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:14:45,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:14:45,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:14:45,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:14:45,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:14:45,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:14:45,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:14:45,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:14:45,691 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:14:45,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:14:45,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:14:45,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:14:45,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:14:45,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:14:45,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:14:45,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:14:45,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:14:45,693 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan 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 -> Taipan 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 -> e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 [2019-11-26 02:14:45,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:14:45,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:14:45,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:14:45,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:14:45,840 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:14:45,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-11-26 02:14:45,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/data/304c48589/4332ef2059d6447290327622831ac1f8/FLAG32ac0c3aa [2019-11-26 02:14:46,278 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:14:46,278 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-11-26 02:14:46,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/data/304c48589/4332ef2059d6447290327622831ac1f8/FLAG32ac0c3aa [2019-11-26 02:14:46,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/data/304c48589/4332ef2059d6447290327622831ac1f8 [2019-11-26 02:14:46,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:14:46,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:14:46,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:14:46,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:14:46,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:14:46,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:46,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59aa6a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46, skipping insertion in model container [2019-11-26 02:14:46,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:46,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:14:46,762 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:14:46,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:14:46,902 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:14:46,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:14:46,983 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:14:46,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46 WrapperNode [2019-11-26 02:14:46,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:14:46,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:14:46,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:14:46,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:14:46,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:46,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:14:47,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:14:47,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:14:47,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:14:47,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... [2019-11-26 02:14:47,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:14:47,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:14:47,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:14:47,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:14:47,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/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 [2019-11-26 02:14:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:14:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:14:47,320 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:14:47,321 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:14:47,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:47 BoogieIcfgContainer [2019-11-26 02:14:47,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:14:47,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:14:47,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:14:47,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:14:47,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:14:46" (1/3) ... [2019-11-26 02:14:47,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1bac5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:14:47, skipping insertion in model container [2019-11-26 02:14:47,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:14:46" (2/3) ... [2019-11-26 02:14:47,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1bac5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:14:47, skipping insertion in model container [2019-11-26 02:14:47,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:47" (3/3) ... [2019-11-26 02:14:47,345 INFO L109 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple7.c [2019-11-26 02:14:47,354 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:14:47,359 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:14:47,387 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:14:47,411 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:14:47,411 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:14:47,411 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:14:47,411 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:14:47,412 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:14:47,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:14:47,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:14:47,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:14:47,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:14:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:14:47,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:14:47,439 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:14:47,439 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:14:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:14:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-11-26 02:14:47,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:14:47,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235202512] [2019-11-26 02:14:47,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:14:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:14:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:14:47,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235202512] [2019-11-26 02:14:47,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:14:47,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:14:47,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020785062] [2019-11-26 02:14:47,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:14:47,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:14:47,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:14:47,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:14:47,647 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-26 02:14:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:14:47,733 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-26 02:14:47,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:14:47,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:14:47,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:14:47,742 INFO L225 Difference]: With dead ends: 14 [2019-11-26 02:14:47,742 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:14:47,745 INFO L630 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 [2019-11-26 02:14:47,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:14:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-26 02:14:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-26 02:14:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-26 02:14:47,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-11-26 02:14:47,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:14:47,776 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-26 02:14:47,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:14:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-26 02:14:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:14:47,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:14:47,777 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:14:47,777 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:14:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:14:47,778 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2019-11-26 02:14:47,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:14:47,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242553235] [2019-11-26 02:14:47,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:14:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:14:47,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:14:47,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242553235] [2019-11-26 02:14:47,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:14:47,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:14:47,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414579141] [2019-11-26 02:14:47,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:14:47,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:14:47,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:14:47,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:14:47,807 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-11-26 02:14:47,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:14:47,844 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-26 02:14:47,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:14:47,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-26 02:14:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:14:47,845 INFO L225 Difference]: With dead ends: 9 [2019-11-26 02:14:47,845 INFO L226 Difference]: Without dead ends: 8 [2019-11-26 02:14:47,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:14:47,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-26 02:14:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-26 02:14:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-26 02:14:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-26 02:14:47,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-11-26 02:14:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:14:47,849 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-26 02:14:47,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:14:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-26 02:14:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:14:47,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:14:47,850 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-26 02:14:47,851 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:14:47,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:14:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2019-11-26 02:14:47,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:14:47,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842715134] [2019-11-26 02:14:47,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:14:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:14:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:14:47,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842715134] [2019-11-26 02:14:47,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183860906] [2019-11-26 02:14:47,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/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 [2019-11-26 02:14:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:14:47,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 02:14:47,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:14:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:14:48,018 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:14:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:14:48,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-26 02:14:48,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 7 [2019-11-26 02:14:48,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466193160] [2019-11-26 02:14:48,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:14:48,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:14:48,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:14:48,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:14:48,082 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2019-11-26 02:14:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:14:48,096 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-11-26 02:14:48,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:14:48,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:14:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:14:48,097 INFO L225 Difference]: With dead ends: 8 [2019-11-26 02:14:48,097 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:14:48,097 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:14:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:14:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:14:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:14:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:14:48,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-26 02:14:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:14:48,099 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:14:48,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:14:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:14:48,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:14:48,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:14:48,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:14:48,377 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:14:48,377 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:14:48,377 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-26 02:14:48,377 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-26 02:14:48,377 INFO L444 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-11-26 02:14:48,377 INFO L440 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-26 02:14:48,378 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:14:48,378 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:14:48,378 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (<= ULTIMATE.start_main_~c~0 0) (<= (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) 2147483647) (<= 0 ULTIMATE.start_main_~c~0)) [2019-11-26 02:14:48,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:14:48 BoogieIcfgContainer [2019-11-26 02:14:48,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:14:48,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:14:48,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:14:48,397 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:14:48,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:14:47" (3/4) ... [2019-11-26 02:14:48,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:14:48,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:14:48,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:14:48,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:14:48,460 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3499e55c-8fcd-4865-b200-460dc0e46acc/bin/utaipan/witness.graphml [2019-11-26 02:14:48,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:14:48,463 INFO L168 Benchmark]: Toolchain (without parser) took 1727.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:48,464 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:14:48,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:48,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:14:48,465 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:14:48,466 INFO L168 Benchmark]: RCFGBuilder took 295.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:48,466 INFO L168 Benchmark]: TraceAbstraction took 1074.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:48,467 INFO L168 Benchmark]: Witness Printer took 63.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:14:48,470 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 295.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1074.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * Witness Printer took 63.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (c <= 0 && c + x <= 2147483647) && 0 <= c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 21 SDslu, 1 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 SizeOfPredicates, 1 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...