./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:15:26,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:15:26,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:15:26,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:15:26,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:15:26,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:15:26,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:15:26,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:15:26,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:15:26,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:15:26,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:15:26,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:15:26,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:15:26,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:15:26,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:15:26,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:15:26,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:15:26,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:15:26,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:15:26,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:15:26,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:15:26,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:15:26,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:15:26,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:15:26,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:15:26,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:15:26,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:15:26,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:15:26,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:15:26,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:15:26,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:15:26,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:15:26,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:15:26,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:15:26,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:15:26,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:15:26,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:15:26,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:15:26,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:15:26,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:15:26,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:15:26,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 18:15:26,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:15:26,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:15:26,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:15:26,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:15:26,829 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:15:26,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 18:15:26,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:15:26,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:15:26,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:15:26,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:15:26,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:15:26,832 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_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2019-12-07 18:15:26,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:15:26,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:15:26,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:15:26,950 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:15:26,950 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:15:26,951 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:15:26,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/data/c36119c22/3a95e8f9a40f41eab315a63ccba5ab3a/FLAGca7c80d4d [2019-12-07 18:15:27,396 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:15:27,397 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:15:27,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/data/c36119c22/3a95e8f9a40f41eab315a63ccba5ab3a/FLAGca7c80d4d [2019-12-07 18:15:27,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/data/c36119c22/3a95e8f9a40f41eab315a63ccba5ab3a [2019-12-07 18:15:27,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:15:27,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:15:27,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:15:27,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:15:27,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:15:27,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc7a4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27, skipping insertion in model container [2019-12-07 18:15:27,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:15:27,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:15:27,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:15:27,534 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:15:27,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:15:27,589 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:15:27,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27 WrapperNode [2019-12-07 18:15:27,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:15:27,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:15:27,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:15:27,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:15:27,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:15:27,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:15:27,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:15:27,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:15:27,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... [2019-12-07 18:15:27,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:15:27,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:15:27,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:15:27,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:15:27,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/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 [2019-12-07 18:15:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:15:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:15:27,773 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:15:27,773 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:15:27,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:27 BoogieIcfgContainer [2019-12-07 18:15:27,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:15:27,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:15:27,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:15:27,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:15:27,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:15:27" (1/3) ... [2019-12-07 18:15:27,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd2bccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:15:27, skipping insertion in model container [2019-12-07 18:15:27,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:27" (2/3) ... [2019-12-07 18:15:27,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd2bccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:15:27, skipping insertion in model container [2019-12-07 18:15:27,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:27" (3/3) ... [2019-12-07 18:15:27,779 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:15:27,785 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:15:27,790 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 18:15:27,797 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 18:15:27,811 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:15:27,812 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:15:27,812 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:15:27,812 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:15:27,812 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:15:27,812 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:15:27,812 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:15:27,812 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:15:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 18:15:27,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:15:27,825 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:15:27,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:15:27,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:15:27,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:27,829 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2019-12-07 18:15:27,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:27,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268902124] [2019-12-07 18:15:27,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:27,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268902124] [2019-12-07 18:15:27,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:15:27,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:15:27,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397976894] [2019-12-07 18:15:27,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:15:27,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:15:27,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:15:27,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:15:27,949 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-12-07 18:15:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:15:27,976 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-12-07 18:15:27,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:15:27,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 18:15:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:15:27,983 INFO L225 Difference]: With dead ends: 28 [2019-12-07 18:15:27,984 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 18:15:27,986 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 [2019-12-07 18:15:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 18:15:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 18:15:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 18:15:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 18:15:28,006 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-12-07 18:15:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:15:28,006 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 18:15:28,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:15:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 18:15:28,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:15:28,007 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:15:28,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:15:28,007 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:15:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:28,008 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-12-07 18:15:28,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:28,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291682416] [2019-12-07 18:15:28,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:28,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291682416] [2019-12-07 18:15:28,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:15:28,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:15:28,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609770958] [2019-12-07 18:15:28,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:15:28,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:15:28,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:15:28,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:15:28,029 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-12-07 18:15:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:15:28,048 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2019-12-07 18:15:28,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:15:28,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 18:15:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:15:28,048 INFO L225 Difference]: With dead ends: 18 [2019-12-07 18:15:28,049 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 18:15:28,049 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 [2019-12-07 18:15:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 18:15:28,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2019-12-07 18:15:28,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 18:15:28,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 18:15:28,053 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2019-12-07 18:15:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:15:28,053 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 18:15:28,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:15:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 18:15:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 18:15:28,054 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:15:28,054 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 18:15:28,054 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:15:28,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:28,055 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2019-12-07 18:15:28,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:28,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403004110] [2019-12-07 18:15:28,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:28,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403004110] [2019-12-07 18:15:28,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:15:28,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:15:28,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192897872] [2019-12-07 18:15:28,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:15:28,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:15:28,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:15:28,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:15:28,072 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-12-07 18:15:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:15:28,082 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-12-07 18:15:28,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:15:28,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 18:15:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:15:28,083 INFO L225 Difference]: With dead ends: 12 [2019-12-07 18:15:28,083 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 18:15:28,083 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 [2019-12-07 18:15:28,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 18:15:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 18:15:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 18:15:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 18:15:28,085 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-12-07 18:15:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:15:28,086 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 18:15:28,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:15:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-07 18:15:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 18:15:28,086 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:15:28,086 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 18:15:28,086 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:15:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:28,087 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-12-07 18:15:28,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:28,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079448330] [2019-12-07 18:15:28,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:28,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079448330] [2019-12-07 18:15:28,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:15:28,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:15:28,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274318123] [2019-12-07 18:15:28,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:15:28,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:15:28,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:15:28,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:15:28,103 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-12-07 18:15:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:15:28,112 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-12-07 18:15:28,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:15:28,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 18:15:28,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:15:28,113 INFO L225 Difference]: With dead ends: 12 [2019-12-07 18:15:28,113 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 18:15:28,113 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 [2019-12-07 18:15:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 18:15:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 18:15:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 18:15:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 18:15:28,116 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2019-12-07 18:15:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:15:28,116 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 18:15:28,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:15:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-12-07 18:15:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:15:28,116 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:15:28,116 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 18:15:28,117 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:15:28,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:28,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2019-12-07 18:15:28,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:28,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644138640] [2019-12-07 18:15:28,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:15:28,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644138640] [2019-12-07 18:15:28,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:15:28,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:15:28,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353541868] [2019-12-07 18:15:28,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:15:28,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:15:28,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:15:28,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:15:28,133 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-12-07 18:15:28,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:15:28,146 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-12-07 18:15:28,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:15:28,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 18:15:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:15:28,147 INFO L225 Difference]: With dead ends: 13 [2019-12-07 18:15:28,147 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:15:28,147 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 [2019-12-07 18:15:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:15:28,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:15:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:15:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:15:28,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 18:15:28,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:15:28,148 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:15:28,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:15:28,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:15:28,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:15:28,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:15:28,169 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 18:15:28,169 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:15:28,169 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 18:15:28,169 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) (<= 0 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~i~0 4)) [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L242 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L249 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: true [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 18:15:28,170 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 18:15:28,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:15:28 BoogieIcfgContainer [2019-12-07 18:15:28,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:15:28,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:15:28,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:15:28,182 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:15:28,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:27" (3/4) ... [2019-12-07 18:15:28,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:15:28,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:15:28,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:15:28,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9cb91c9b-dbba-4075-8805-e1d227bfe0ff/bin/uautomizer/witness.graphml [2019-12-07 18:15:28,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:15:28,220 INFO L168 Benchmark]: Toolchain (without parser) took 807.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -98.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:28,221 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:28,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:28,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:28,221 INFO L168 Benchmark]: Boogie Preprocessor took 11.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:28,222 INFO L168 Benchmark]: RCFGBuilder took 147.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:28,222 INFO L168 Benchmark]: TraceAbstraction took 407.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:28,222 INFO L168 Benchmark]: Witness Printer took 36.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:28,224 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 147.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 407.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. * Witness Printer took 36.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 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.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 22]: 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: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= i + 2147483648 && 0 <= j) && i <= 4 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 26 SDslu, 8 SDs, 0 SdLazy, 37 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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...