./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 03:00:04,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:00:04,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:00:04,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:00:04,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:00:04,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:00:04,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:00:04,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:00:04,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:00:04,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:00:04,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:00:04,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:00:04,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:00:04,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:00:04,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:00:04,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:00:04,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:00:04,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:00:04,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:00:04,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:00:04,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:00:04,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:00:04,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:00:04,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:00:04,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:00:04,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:00:04,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:00:04,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:00:04,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:00:04,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:00:04,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:00:04,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:00:04,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:00:04,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:00:04,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:00:04,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:00:04,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:00:04,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:00:04,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:00:04,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:00:04,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:00:04,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 03:00:04,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:00:04,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:00:04,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:00:04,169 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:00:04,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:00:04,170 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:00:04,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 03:00:04,170 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:00:04,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:00:04,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 03:00:04,172 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 03:00:04,172 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:00:04,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 03:00:04,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 03:00:04,172 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 03:00:04,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:00:04,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 03:00:04,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:00:04,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:00:04,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:00:04,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:00:04,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:00:04,174 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 03:00:04,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:00:04,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:00:04,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:00:04,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:00:04,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:00:04,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:00:04,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:00:04,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:00:04,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:00:04,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 03:00:04,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:00:04,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:00:04,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:00:04,178 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2019-11-26 03:00:04,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:00:04,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:00:04,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:00:04,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:00:04,353 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:00:04,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-26 03:00:04,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/data/257ac1b6c/0dde753ebda4475ea08a05a3ad67bf65/FLAGafc3c7be9 [2019-11-26 03:00:04,787 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:00:04,787 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-26 03:00:04,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/data/257ac1b6c/0dde753ebda4475ea08a05a3ad67bf65/FLAGafc3c7be9 [2019-11-26 03:00:04,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/data/257ac1b6c/0dde753ebda4475ea08a05a3ad67bf65 [2019-11-26 03:00:04,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:00:04,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:00:04,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:00:04,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:00:04,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:00:04,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:00:04" (1/1) ... [2019-11-26 03:00:04,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:04, skipping insertion in model container [2019-11-26 03:00:04,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:00:04" (1/1) ... [2019-11-26 03:00:04,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:00:04,831 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:00:04,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:00:04,965 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:00:04,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:00:05,052 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:00:05,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05 WrapperNode [2019-11-26 03:00:05,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:00:05,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:00:05,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:00:05,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:00:05,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:00:05,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:00:05,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:00:05,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:00:05,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... [2019-11-26 03:00:05,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:00:05,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:00:05,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:00:05,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:00:05,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:00:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:00:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:00:05,427 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:00:05,428 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 03:00:05,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:00:05 BoogieIcfgContainer [2019-11-26 03:00:05,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:00:05,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:00:05,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:00:05,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:00:05,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:00:04" (1/3) ... [2019-11-26 03:00:05,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555f4b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:00:05, skipping insertion in model container [2019-11-26 03:00:05,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:00:05" (2/3) ... [2019-11-26 03:00:05,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555f4b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:00:05, skipping insertion in model container [2019-11-26 03:00:05,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:00:05" (3/3) ... [2019-11-26 03:00:05,436 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-26 03:00:05,445 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:00:05,451 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 03:00:05,462 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 03:00:05,483 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:00:05,484 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:00:05,484 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:00:05,484 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:00:05,484 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:00:05,485 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:00:05,485 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:00:05,485 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:00:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-26 03:00:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 03:00:05,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:00:05,503 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 03:00:05,504 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 03:00:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:00:05,509 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-26 03:00:05,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:00:05,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747721973] [2019-11-26 03:00:05,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:00:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:00:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:00:05,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747721973] [2019-11-26 03:00:05,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:00:05,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 03:00:05,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047036229] [2019-11-26 03:00:05,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 03:00:05,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:00:05,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 03:00:05,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 03:00:05,658 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-11-26 03:00:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:00:05,713 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-11-26 03:00:05,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 03:00:05,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-26 03:00:05,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:00:05,723 INFO L225 Difference]: With dead ends: 22 [2019-11-26 03:00:05,723 INFO L226 Difference]: Without dead ends: 19 [2019-11-26 03:00:05,725 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 [2019-11-26 03:00:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-26 03:00:05,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2019-11-26 03:00:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-26 03:00:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-26 03:00:05,750 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2019-11-26 03:00:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:00:05,750 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-26 03:00:05,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 03:00:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-26 03:00:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 03:00:05,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:00:05,751 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 03:00:05,752 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 03:00:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:00:05,752 INFO L82 PathProgramCache]: Analyzing trace with hash 964251, now seen corresponding path program 1 times [2019-11-26 03:00:05,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:00:05,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649966176] [2019-11-26 03:00:05,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:00:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:00:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:00:05,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649966176] [2019-11-26 03:00:05,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:00:05,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 03:00:05,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015959056] [2019-11-26 03:00:05,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 03:00:05,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:00:05,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 03:00:05,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 03:00:05,776 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-26 03:00:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:00:05,790 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-26 03:00:05,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 03:00:05,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-26 03:00:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:00:05,792 INFO L225 Difference]: With dead ends: 13 [2019-11-26 03:00:05,792 INFO L226 Difference]: Without dead ends: 12 [2019-11-26 03:00:05,793 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 [2019-11-26 03:00:05,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-26 03:00:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-26 03:00:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-26 03:00:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-26 03:00:05,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2019-11-26 03:00:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:00:05,796 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-26 03:00:05,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 03:00:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-26 03:00:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 03:00:05,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:00:05,796 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 03:00:05,797 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 03:00:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:00:05,797 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-26 03:00:05,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:00:05,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467739893] [2019-11-26 03:00:05,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:00:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:00:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:00:05,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467739893] [2019-11-26 03:00:05,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:00:05,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 03:00:05,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904257112] [2019-11-26 03:00:05,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 03:00:05,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:00:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 03:00:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 03:00:05,825 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-11-26 03:00:05,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:00:05,841 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-26 03:00:05,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 03:00:05,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 03:00:05,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:00:05,842 INFO L225 Difference]: With dead ends: 13 [2019-11-26 03:00:05,843 INFO L226 Difference]: Without dead ends: 12 [2019-11-26 03:00:05,843 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 [2019-11-26 03:00:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-26 03:00:05,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-26 03:00:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 03:00:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-26 03:00:05,847 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-11-26 03:00:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:00:05,847 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-26 03:00:05,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 03:00:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-26 03:00:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 03:00:05,848 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:00:05,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 03:00:05,848 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 03:00:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:00:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash 29891841, now seen corresponding path program 1 times [2019-11-26 03:00:05,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:00:05,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644625206] [2019-11-26 03:00:05,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:00:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:00:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:00:05,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644625206] [2019-11-26 03:00:05,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:00:05,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 03:00:05,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235366155] [2019-11-26 03:00:05,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 03:00:05,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:00:05,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 03:00:05,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 03:00:05,874 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-26 03:00:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:00:05,892 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-11-26 03:00:05,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 03:00:05,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 03:00:05,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:00:05,893 INFO L225 Difference]: With dead ends: 11 [2019-11-26 03:00:05,893 INFO L226 Difference]: Without dead ends: 10 [2019-11-26 03:00:05,894 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 [2019-11-26 03:00:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-26 03:00:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-26 03:00:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-26 03:00:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-26 03:00:05,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2019-11-26 03:00:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:00:05,898 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-26 03:00:05,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 03:00:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-11-26 03:00:05,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 03:00:05,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:00:05,899 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-26 03:00:05,899 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 03:00:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:00:05,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2019-11-26 03:00:05,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:00:05,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633805308] [2019-11-26 03:00:05,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:00:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:00:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 03:00:05,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633805308] [2019-11-26 03:00:05,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:00:05,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 03:00:05,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52899374] [2019-11-26 03:00:05,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 03:00:05,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:00:05,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 03:00:05,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 03:00:05,921 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-11-26 03:00:05,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:00:05,955 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-26 03:00:05,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 03:00:05,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-26 03:00:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:00:05,956 INFO L225 Difference]: With dead ends: 13 [2019-11-26 03:00:05,956 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 03:00:05,957 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 [2019-11-26 03:00:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 03:00:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 03:00:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 03:00:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 03:00:05,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-26 03:00:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:00:05,958 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 03:00:05,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 03:00:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 03:00:05,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 03:00:05,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 03:00:06,004 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-26 03:00:06,004 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 03:00:06,004 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-26 03:00:06,005 INFO L440 ceAbstractionStarter]: 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)) [2019-11-26 03:00:06,005 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2019-11-26 03:00:06,005 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) [2019-11-26 03:00:06,005 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-26 03:00:06,005 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-26 03:00:06,006 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 03:00:06,006 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-26 03:00:06,006 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-26 03:00:06,006 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-26 03:00:06,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:00:06 BoogieIcfgContainer [2019-11-26 03:00:06,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:00:06,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:00:06,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:00:06,023 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:00:06,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:00:05" (3/4) ... [2019-11-26 03:00:06,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 03:00:06,037 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-26 03:00:06,038 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 03:00:06,038 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 03:00:06,113 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_284ad047-f5fb-4e4f-9d93-e1404e298ddc/bin/utaipan/witness.graphml [2019-11-26 03:00:06,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:00:06,122 INFO L168 Benchmark]: Toolchain (without parser) took 1311.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,122 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:00:06,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.75 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. [2019-11-26 03:00:06,124 INFO L168 Benchmark]: Boogie Preprocessor took 15.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,125 INFO L168 Benchmark]: RCFGBuilder took 332.23 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,125 INFO L168 Benchmark]: TraceAbstraction took 591.49 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,130 INFO L168 Benchmark]: Witness Printer took 92.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:00:06,136 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.75 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 15.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 332.23 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 591.49 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 92.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 28 SDslu, 7 SDs, 0 SdLazy, 36 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=13occurred in iteration=1, 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, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 17 HoareAnnotationTreeSize, 2 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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...