./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:59:53,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:59:53,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:59:53,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:59:53,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:59:53,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:59:53,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:59:53,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:59:53,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:59:53,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:59:53,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:59:53,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:59:53,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:59:53,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:59:53,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:59:53,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:59:53,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:59:53,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:59:53,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:59:53,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:59:53,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:59:53,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:59:53,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:59:53,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:59:53,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:59:53,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:59:53,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:59:53,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:59:53,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:59:53,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:59:53,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:59:53,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:59:53,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:59:53,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:59:53,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:59:53,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:59:53,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:59:53,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:59:53,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:59:53,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:59:53,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:59:53,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 06:59:53,733 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:59:53,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:59:53,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:59:53,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:59:53,743 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:59:53,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:59:53,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 06:59:53,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:59:53,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:59:53,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:59:53,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:59:53,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:59:53,747 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 06:59:53,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:59:53,747 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:59:53,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:59:53,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:59:53,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:59:53,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:59:53,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:59:53,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:59:53,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:59:53,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:59:53,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:59:53,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:59:53,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:59:53,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:59:53,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/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 -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2019-11-20 06:59:53,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:59:53,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:59:53,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:59:53,927 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:59:53,927 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:59:53,928 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-11-20 06:59:53,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/data/58f98c007/caaee6615d8d4376a05207261de2a039/FLAG23d7270f4 [2019-11-20 06:59:54,374 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:59:54,374 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-11-20 06:59:54,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/data/58f98c007/caaee6615d8d4376a05207261de2a039/FLAG23d7270f4 [2019-11-20 06:59:54,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/data/58f98c007/caaee6615d8d4376a05207261de2a039 [2019-11-20 06:59:54,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:59:54,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:59:54,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:59:54,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:59:54,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:59:54,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1d3fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54, skipping insertion in model container [2019-11-20 06:59:54,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,415 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:59:54,430 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:59:54,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:59:54,590 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:59:54,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:59:54,696 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:59:54,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54 WrapperNode [2019-11-20 06:59:54,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:59:54,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:59:54,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:59:54,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:59:54,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:59:54,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:59:54,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:59:54,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:59:54,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... [2019-11-20 06:59:54,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:59:54,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:59:54,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:59:54,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:59:54,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:59:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:59:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:59:55,025 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:59:55,025 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 06:59:55,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:55 BoogieIcfgContainer [2019-11-20 06:59:55,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:59:55,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:59:55,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:59:55,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:59:55,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:59:54" (1/3) ... [2019-11-20 06:59:55,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50972b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:55, skipping insertion in model container [2019-11-20 06:59:55,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:59:54" (2/3) ... [2019-11-20 06:59:55,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50972b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:55, skipping insertion in model container [2019-11-20 06:59:55,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:55" (3/3) ... [2019-11-20 06:59:55,033 INFO L109 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2019-11-20 06:59:55,042 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:59:55,047 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-20 06:59:55,058 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-20 06:59:55,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:59:55,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:59:55,078 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:59:55,078 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:59:55,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:59:55,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:59:55,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:59:55,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:59:55,093 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-20 06:59:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 06:59:55,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:55,098 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 06:59:55,099 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 06:59:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:55,104 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 06:59:55,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:55,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545120459] [2019-11-20 06:59:55,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:55,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545120459] [2019-11-20 06:59:55,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:55,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 06:59:55,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344062631] [2019-11-20 06:59:55,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:59:55,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:59:55,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:59:55,275 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2019-11-20 06:59:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:55,379 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-11-20 06:59:55,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:59:55,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-20 06:59:55,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:55,389 INFO L225 Difference]: With dead ends: 30 [2019-11-20 06:59:55,389 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 06:59:55,394 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:59:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 06:59:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 06:59:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 06:59:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-20 06:59:55,431 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2019-11-20 06:59:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:55,432 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-20 06:59:55,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:59:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-20 06:59:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 06:59:55,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:55,433 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 06:59:55,434 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 06:59:55,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:55,435 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-20 06:59:55,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:55,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461189305] [2019-11-20 06:59:55,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:55,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461189305] [2019-11-20 06:59:55,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:55,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:59:55,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203876556] [2019-11-20 06:59:55,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 06:59:55,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:55,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:59:55,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:59:55,480 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2019-11-20 06:59:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:55,529 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-20 06:59:55,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:59:55,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-20 06:59:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:55,530 INFO L225 Difference]: With dead ends: 16 [2019-11-20 06:59:55,530 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 06:59:55,531 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 [2019-11-20 06:59:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 06:59:55,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 06:59:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 06:59:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-20 06:59:55,535 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-11-20 06:59:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:55,535 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-20 06:59:55,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 06:59:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-20 06:59:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 06:59:55,536 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:55,536 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 06:59:55,537 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 06:59:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:55,537 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-11-20 06:59:55,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:55,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578654212] [2019-11-20 06:59:55,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:55,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578654212] [2019-11-20 06:59:55,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:59:55,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 06:59:55,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930559594] [2019-11-20 06:59:55,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:59:55,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:55,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:59:55,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:59:55,566 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2019-11-20 06:59:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:55,609 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-20 06:59:55,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:59:55,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 06:59:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:55,611 INFO L225 Difference]: With dead ends: 20 [2019-11-20 06:59:55,611 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 06:59:55,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:59:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 06:59:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 06:59:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 06:59:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-20 06:59:55,615 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2019-11-20 06:59:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:55,615 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-20 06:59:55,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:59:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-20 06:59:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 06:59:55,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:59:55,616 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:59:55,616 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 06:59:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:59:55,617 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2019-11-20 06:59:55,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:59:55,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051513788] [2019-11-20 06:59:55,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:59:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:55,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051513788] [2019-11-20 06:59:55,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589644486] [2019-11-20 06:59:55,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/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 [2019-11-20 06:59:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:59:55,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 06:59:55,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:59:55,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:59:55,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:59:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:59:55,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:59:55,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2019-11-20 06:59:55,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018125855] [2019-11-20 06:59:55,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 06:59:55,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:59:55,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 06:59:55,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-20 06:59:55,895 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 9 states. [2019-11-20 06:59:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:59:56,009 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-20 06:59:56,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:59:56,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-20 06:59:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:59:56,010 INFO L225 Difference]: With dead ends: 18 [2019-11-20 06:59:56,010 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:59:56,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-20 06:59:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:59:56,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:59:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:59:56,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:59:56,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 06:59:56,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:59:56,012 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:59:56,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 06:59:56,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:59:56,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:59:56,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:59:56,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 06:59:56,316 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-20 06:59:56,317 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L447 ceAbstractionStarter]: At program point L18(lines 11 19) the Hoare annotation is: true [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,318 INFO L444 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,319 INFO L444 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,319 INFO L444 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2019-11-20 06:59:56,319 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_main_~y~0 2))) (or (and (exists ((v_ULTIMATE.start_main_~y~0_17 Int)) (let ((.cse0 (+ v_ULTIMATE.start_main_~y~0_17 1))) (and (<= 0 .cse0) (<= (+ v_ULTIMATE.start_main_~y~0_17 ULTIMATE.start_main_~x~0) 2147483647) (<= (div .cse0 2) ULTIMATE.start_main_~y~0) (<= 2 v_ULTIMATE.start_main_~y~0_17)))) .cse1) (and (<= 2 ULTIMATE.start_main_~y~0) .cse1 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483645))))) [2019-11-20 06:59:56,319 INFO L444 ceAbstractionStarter]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2019-11-20 06:59:56,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:59:56 BoogieIcfgContainer [2019-11-20 06:59:56,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:59:56,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:59:56,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:59:56,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:59:56,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:55" (3/4) ... [2019-11-20 06:59:56,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:59:56,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 06:59:56,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 06:59:56,387 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~y~0_17 : int :: ((0 <= v_ULTIMATE.start_main_~y~0_17 + 1 && v_ULTIMATE.start_main_~y~0_17 + x <= 2147483647) && (v_ULTIMATE.start_main_~y~0_17 + 1) / 2 <= y) && 2 <= v_ULTIMATE.start_main_~y~0_17) && y <= 2) || ((2 <= y && y <= 2) && x <= y + 2147483645) [2019-11-20 06:59:56,407 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a7cb5386-84a0-4f75-a067-573112c376ce/bin/uautomizer/witness.graphml [2019-11-20 06:59:56,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:59:56,409 INFO L168 Benchmark]: Toolchain (without parser) took 2013.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:56,410 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:59:56,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -231.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:56,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.76 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. [2019-11-20 06:59:56,411 INFO L168 Benchmark]: Boogie Preprocessor took 24.10 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. [2019-11-20 06:59:56,412 INFO L168 Benchmark]: RCFGBuilder took 273.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:56,412 INFO L168 Benchmark]: TraceAbstraction took 1314.17 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: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:56,413 INFO L168 Benchmark]: Witness Printer took 65.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 06:59:56,416 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -231.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.76 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 24.10 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 273.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1314.17 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: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. * Witness Printer took 65.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2019-11-20 06:59:56,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] [2019-11-20 06:59:56,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_17,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~y~0_17 : int :: ((0 <= v_ULTIMATE.start_main_~y~0_17 + 1 && v_ULTIMATE.start_main_~y~0_17 + x <= 2147483647) && (v_ULTIMATE.start_main_~y~0_17 + 1) / 2 <= y) && 2 <= v_ULTIMATE.start_main_~y~0_17) && y <= 2) || ((2 <= y && y <= 2) && x <= y + 2147483645) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 21 SDtfs, 30 SDslu, 4 SDs, 0 SdLazy, 86 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 40 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 2 QuantifiedInterpolants, 1646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/4 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...