./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.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_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:52:57,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:52:57,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:52:57,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:52:57,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:52:57,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:52:57,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:52:57,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:52:57,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:52:57,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:52:57,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:52:57,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:52:57,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:52:57,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:52:57,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:52:57,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:52:57,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:52:57,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:52:57,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:52:57,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:52:57,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:52:57,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:52:57,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:52:57,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:52:57,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:52:57,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:52:57,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:52:57,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:52:57,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:52:57,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:52:57,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:52:57,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:52:57,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:52:57,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:52:57,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:52:57,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:52:57,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:52:57,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:52:57,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:52:57,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:52:57,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:52:57,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 23:52:57,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:52:57,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:52:57,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:52:57,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:52:57,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:52:57,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:52:57,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:52:57,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:52:57,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:52:57,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:52:57,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:52:57,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:52:57,777 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 23:52:57,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:52:57,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:52:57,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:52:57,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:52:57,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:52:57,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:52:57,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:52:57,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:52:57,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:52:57,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:52:57,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:52:57,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:52:57,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:52:57,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:52:57,779 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_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-11-19 23:52:57,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:52:57,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:52:57,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:52:58,001 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:52:58,001 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:52:58,002 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-19 23:52:58,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/data/323fd264d/fe07880a946e4d798a3b70be519f4726/FLAG33f2760a6 [2019-11-19 23:52:58,509 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:52:58,510 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-19 23:52:58,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/data/323fd264d/fe07880a946e4d798a3b70be519f4726/FLAG33f2760a6 [2019-11-19 23:52:58,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/data/323fd264d/fe07880a946e4d798a3b70be519f4726 [2019-11-19 23:52:58,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:52:58,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:52:58,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:52:58,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:52:58,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:52:58,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:52:58" (1/1) ... [2019-11-19 23:52:58,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49aaa0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:58, skipping insertion in model container [2019-11-19 23:52:58,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:52:58" (1/1) ... [2019-11-19 23:52:58,952 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:52:58,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:52:59,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:52:59,138 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:52:59,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:52:59,234 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:52:59,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59 WrapperNode [2019-11-19 23:52:59,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:52:59,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:52:59,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:52:59,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:52:59,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:52:59,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:52:59,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:52:59,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:52:59,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... [2019-11-19 23:52:59,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:52:59,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:52:59,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:52:59,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:52:59,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/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 [2019-11-19 23:52:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:52:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:52:59,524 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:52:59,524 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 23:52:59,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:52:59 BoogieIcfgContainer [2019-11-19 23:52:59,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:52:59,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:52:59,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:52:59,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:52:59,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:52:58" (1/3) ... [2019-11-19 23:52:59,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53c8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:52:59, skipping insertion in model container [2019-11-19 23:52:59,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:52:59" (2/3) ... [2019-11-19 23:52:59,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53c8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:52:59, skipping insertion in model container [2019-11-19 23:52:59,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:52:59" (3/3) ... [2019-11-19 23:52:59,533 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-19 23:52:59,542 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:52:59,548 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 23:52:59,560 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 23:52:59,582 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:52:59,582 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:52:59,582 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:52:59,583 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:52:59,583 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:52:59,583 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:52:59,583 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:52:59,583 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:52:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-19 23:52:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 23:52:59,603 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:52:59,604 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 23:52:59,604 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:52:59,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:52:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-19 23:52:59,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:52:59,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442971180] [2019-11-19 23:52:59,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:52:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:52:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:52:59,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442971180] [2019-11-19 23:52:59,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:52:59,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 23:52:59,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564695398] [2019-11-19 23:52:59,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:52:59,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:52:59,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:52:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:52:59,830 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-19 23:52:59,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:52:59,910 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-19 23:52:59,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:52:59,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 23:52:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:52:59,921 INFO L225 Difference]: With dead ends: 19 [2019-11-19 23:52:59,921 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 23:52:59,924 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 [2019-11-19 23:52:59,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 23:52:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-19 23:52:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 23:52:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-19 23:52:59,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-19 23:52:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:52:59,970 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-19 23:52:59,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:52:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-19 23:52:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 23:52:59,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:52:59,971 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 23:52:59,971 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:52:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:52:59,971 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-19 23:52:59,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:52:59,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470901307] [2019-11-19 23:52:59,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:52:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:52:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:52:59,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470901307] [2019-11-19 23:52:59,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:52:59,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 23:52:59,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121459810] [2019-11-19 23:52:59,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:52:59,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:52:59,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:52:59,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:52:59,994 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-19 23:53:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:53:00,025 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-19 23:53:00,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:53:00,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 23:53:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:53:00,027 INFO L225 Difference]: With dead ends: 15 [2019-11-19 23:53:00,027 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 23:53:00,028 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 [2019-11-19 23:53:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 23:53:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 23:53:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 23:53:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-19 23:53:00,032 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2019-11-19 23:53:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:53:00,032 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 23:53:00,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:53:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-19 23:53:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:53:00,033 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:53:00,033 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:53:00,033 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:53:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:53:00,033 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-19 23:53:00,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:53:00,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430803923] [2019-11-19 23:53:00,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:53:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:53:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:53:00,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430803923] [2019-11-19 23:53:00,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:53:00,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:53:00,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007046997] [2019-11-19 23:53:00,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:53:00,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:53:00,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:53:00,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:53:00,067 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-11-19 23:53:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:53:00,089 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-19 23:53:00,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:53:00,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 23:53:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:53:00,090 INFO L225 Difference]: With dead ends: 16 [2019-11-19 23:53:00,090 INFO L226 Difference]: Without dead ends: 15 [2019-11-19 23:53:00,091 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:53:00,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-19 23:53:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-11-19 23:53:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-19 23:53:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-19 23:53:00,094 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2019-11-19 23:53:00,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:53:00,095 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-19 23:53:00,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:53:00,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-19 23:53:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:53:00,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:53:00,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:53:00,096 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:53:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:53:00,096 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-19 23:53:00,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:53:00,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115461856] [2019-11-19 23:53:00,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:53:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:53:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:53:00,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115461856] [2019-11-19 23:53:00,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:53:00,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:53:00,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138668100] [2019-11-19 23:53:00,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:53:00,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:53:00,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:53:00,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:53:00,130 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-11-19 23:53:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:53:00,148 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2019-11-19 23:53:00,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:53:00,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 23:53:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:53:00,149 INFO L225 Difference]: With dead ends: 13 [2019-11-19 23:53:00,149 INFO L226 Difference]: Without dead ends: 12 [2019-11-19 23:53:00,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:53:00,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-19 23:53:00,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-19 23:53:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 23:53:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-19 23:53:00,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-19 23:53:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:53:00,153 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-19 23:53:00,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:53:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-19 23:53:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-19 23:53:00,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:53:00,154 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-19 23:53:00,154 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:53:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:53:00,155 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2019-11-19 23:53:00,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:53:00,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974005630] [2019-11-19 23:53:00,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:53:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:53:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:53:00,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974005630] [2019-11-19 23:53:00,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616327341] [2019-11-19 23:53:00,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/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 [2019-11-19 23:53:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:53:00,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:53:00,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:53:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:53:00,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:53:00,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2019-11-19 23:53:00,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002013839] [2019-11-19 23:53:00,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 23:53:00,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:53:00,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:53:00,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:53:00,321 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 8 states. [2019-11-19 23:53:00,510 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-19 23:53:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:53:00,570 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-19 23:53:00,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:53:00,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-11-19 23:53:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:53:00,572 INFO L225 Difference]: With dead ends: 14 [2019-11-19 23:53:00,572 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:53:00,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:53:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:53:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:53:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:53:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:53:00,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-19 23:53:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:53:00,574 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:53:00,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 23:53:00,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:53:00,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:53:00,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:53:00,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-19 23:53:00,816 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2019-11-19 23:53:00,817 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~j~0 2147483647) (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-19 23:53:00,817 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 23:53:00,817 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 23:53:00,817 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:53:00,817 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:53:00,817 INFO L440 ceAbstractionStarter]: At program point L26(lines 13 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2019-11-19 23:53:00,818 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-19 23:53:00,818 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-19 23:53:00,818 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-11-19 23:53:00,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:53:00 BoogieIcfgContainer [2019-11-19 23:53:00,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:53:00,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:53:00,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:53:00,832 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:53:00,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:52:59" (3/4) ... [2019-11-19 23:53:00,836 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:53:00,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 23:53:00,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 23:53:00,881 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_535c0e85-9dd6-4c72-8e9f-d2dc0c7ed706/bin/uautomizer/witness.graphml [2019-11-19 23:53:00,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:53:00,883 INFO L168 Benchmark]: Toolchain (without parser) took 1948.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -99.4 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:53:00,884 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-19 23:53:00,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:53:00,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:53:00,885 INFO L168 Benchmark]: Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:53:00,886 INFO L168 Benchmark]: RCFGBuilder took 245.69 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:53:00,886 INFO L168 Benchmark]: TraceAbstraction took 1304.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:53:00,887 INFO L168 Benchmark]: Witness Printer took 50.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:53:00,890 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 300.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.69 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1304.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (j <= 2147483647 && i <= 2147483647) && N <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 7 SDs, 0 SdLazy, 48 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 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...