./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/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 f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:34:57,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:34:57,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:34:57,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:34:57,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:34:57,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:34:57,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:34:57,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:34:57,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:34:57,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:34:57,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:34:57,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:34:57,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:34:57,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:34:57,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:34:57,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:34:57,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:34:57,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:34:57,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:34:57,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:34:57,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:34:57,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:34:57,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:34:57,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:34:57,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:34:57,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:34:57,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:34:57,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:34:57,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:34:57,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:34:57,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:34:57,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:34:57,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:34:57,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:34:57,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:34:57,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:34:57,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:34:57,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:34:57,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:34:57,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:34:57,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:34:57,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 20:34:57,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:34:57,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:34:57,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:34:57,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:34:57,211 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:34:57,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:34:57,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:34:57,212 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:34:57,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:34:57,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:34:57,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:34:57,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:34:57,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:34:57,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:34:57,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:34:57,215 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2020-12-09 20:34:57,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:34:57,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:34:57,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:34:57,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:34:57,399 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:34:57,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-09 20:34:57,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/data/efd337e0a/4ce40d6a05a74a418dc42540f449a1db/FLAG4be6f85a2 [2020-12-09 20:34:57,814 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:34:57,814 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-09 20:34:57,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/data/efd337e0a/4ce40d6a05a74a418dc42540f449a1db/FLAG4be6f85a2 [2020-12-09 20:34:57,829 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/data/efd337e0a/4ce40d6a05a74a418dc42540f449a1db [2020-12-09 20:34:57,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:34:57,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:34:57,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:34:57,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:34:57,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:34:57,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:57,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628b9fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57, skipping insertion in model container [2020-12-09 20:34:57,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:57,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:34:57,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:34:57,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:34:57,956 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:34:57,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:34:57,976 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:34:57,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57 WrapperNode [2020-12-09 20:34:57,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:34:57,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:34:57,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:34:57,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:34:57,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:57,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:34:58,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:34:58,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:34:58,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:34:58,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... [2020-12-09 20:34:58,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:34:58,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:34:58,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:34:58,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:34:58,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/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 [2020-12-09 20:34:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:34:58,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:34:58,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:34:58,205 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 20:34:58,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:58 BoogieIcfgContainer [2020-12-09 20:34:58,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:34:58,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:34:58,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:34:58,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:34:58,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:34:57" (1/3) ... [2020-12-09 20:34:58,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5066228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:34:58, skipping insertion in model container [2020-12-09 20:34:58,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:57" (2/3) ... [2020-12-09 20:34:58,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5066228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:34:58, skipping insertion in model container [2020-12-09 20:34:58,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:58" (3/3) ... [2020-12-09 20:34:58,220 INFO L111 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1.c [2020-12-09 20:34:58,239 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:34:58,242 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 20:34:58,251 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 20:34:58,267 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:34:58,267 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:34:58,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:34:58,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:34:58,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:34:58,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:34:58,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:34:58,267 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:34:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-09 20:34:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 20:34:58,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:58,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 20:34:58,280 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:58,284 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-12-09 20:34:58,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:58,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947426224] [2020-12-09 20:34:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947426224] [2020-12-09 20:34:58,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:58,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:58,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91653897] [2020-12-09 20:34:58,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:58,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:58,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:58,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:58,404 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2020-12-09 20:34:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:58,434 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-12-09 20:34:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:58,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 20:34:58,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:58,441 INFO L225 Difference]: With dead ends: 22 [2020-12-09 20:34:58,442 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 20:34:58,443 INFO L677 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 [2020-12-09 20:34:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 20:34:58,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2020-12-09 20:34:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 20:34:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-12-09 20:34:58,470 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2020-12-09 20:34:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:58,470 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-12-09 20:34:58,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-09 20:34:58,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 20:34:58,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:58,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 20:34:58,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:34:58,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:58,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:58,473 INFO L82 PathProgramCache]: Analyzing trace with hash 964251, now seen corresponding path program 1 times [2020-12-09 20:34:58,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:58,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430890667] [2020-12-09 20:34:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430890667] [2020-12-09 20:34:58,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:58,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:58,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017960188] [2020-12-09 20:34:58,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:58,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:58,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:58,498 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-12-09 20:34:58,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:58,513 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-12-09 20:34:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:58,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 20:34:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:58,514 INFO L225 Difference]: With dead ends: 14 [2020-12-09 20:34:58,514 INFO L226 Difference]: Without dead ends: 13 [2020-12-09 20:34:58,515 INFO L677 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 [2020-12-09 20:34:58,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-09 20:34:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-12-09 20:34:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 20:34:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-12-09 20:34:58,519 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2020-12-09 20:34:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:58,519 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-12-09 20:34:58,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-09 20:34:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 20:34:58,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:58,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 20:34:58,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 20:34:58,521 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-12-09 20:34:58,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:58,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818317918] [2020-12-09 20:34:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818317918] [2020-12-09 20:34:58,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:58,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:58,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252698130] [2020-12-09 20:34:58,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:58,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:58,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:58,546 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-12-09 20:34:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:58,558 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-12-09 20:34:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:58,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 20:34:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:58,559 INFO L225 Difference]: With dead ends: 13 [2020-12-09 20:34:58,559 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 20:34:58,559 INFO L677 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 [2020-12-09 20:34:58,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 20:34:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-12-09 20:34:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 20:34:58,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-12-09 20:34:58,563 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2020-12-09 20:34:58,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:58,563 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-12-09 20:34:58,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:58,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-09 20:34:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 20:34:58,564 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:58,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 20:34:58,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 20:34:58,564 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:58,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:58,565 INFO L82 PathProgramCache]: Analyzing trace with hash 29891841, now seen corresponding path program 1 times [2020-12-09 20:34:58,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:58,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645564705] [2020-12-09 20:34:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645564705] [2020-12-09 20:34:58,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:58,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:58,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689362572] [2020-12-09 20:34:58,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:58,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:58,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:58,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:58,587 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-12-09 20:34:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:58,596 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-12-09 20:34:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:58,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 20:34:58,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:58,597 INFO L225 Difference]: With dead ends: 11 [2020-12-09 20:34:58,597 INFO L226 Difference]: Without dead ends: 10 [2020-12-09 20:34:58,597 INFO L677 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 [2020-12-09 20:34:58,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-09 20:34:58,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-09 20:34:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 20:34:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-12-09 20:34:58,600 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2020-12-09 20:34:58,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:58,600 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-12-09 20:34:58,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-09 20:34:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 20:34:58,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:58,601 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-09 20:34:58,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 20:34:58,601 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2020-12-09 20:34:58,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:58,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753508413] [2020-12-09 20:34:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753508413] [2020-12-09 20:34:58,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281908305] [2020-12-09 20:34:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:34:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:58,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:34:58,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:34:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:34:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:58,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284587140] [2020-12-09 20:34:58,764 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 20:34:58,764 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 20:34:58,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 20:34:58,773 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 20:34:58,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 20:34:58,885 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 20:34:58,956 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 20:34:58,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 20:34:58,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2020-12-09 20:34:58,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034261369] [2020-12-09 20:34:58,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:34:58,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:58,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:34:58,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:34:58,958 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 6 states. [2020-12-09 20:34:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:58,993 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2020-12-09 20:34:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:34:58,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-12-09 20:34:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:58,995 INFO L225 Difference]: With dead ends: 32 [2020-12-09 20:34:58,995 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 20:34:58,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:34:58,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 20:34:59,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 19. [2020-12-09 20:34:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 20:34:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-12-09 20:34:59,001 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 7 [2020-12-09 20:34:59,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:59,002 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-12-09 20:34:59,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:34:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-09 20:34:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 20:34:59,003 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:59,003 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2020-12-09 20:34:59,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:34:59,206 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 20:34:59,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:59,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1477250187, now seen corresponding path program 2 times [2020-12-09 20:34:59,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:59,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377872106] [2020-12-09 20:34:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-09 20:34:59,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377872106] [2020-12-09 20:34:59,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324655977] [2020-12-09 20:34:59,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:34:59,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-09 20:34:59,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 20:34:59,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:34:59,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:34:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-09 20:34:59,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:34:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-09 20:34:59,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1556781248] [2020-12-09 20:34:59,425 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 20:34:59,425 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 20:34:59,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 20:34:59,425 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 20:34:59,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 20:34:59,488 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 20:34:59,565 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 20:34:59,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 20:34:59,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2020-12-09 20:34:59,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748461869] [2020-12-09 20:34:59,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:34:59,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:59,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:34:59,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:34:59,567 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 6 states. [2020-12-09 20:34:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:59,599 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-12-09 20:34:59,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:59,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-09 20:34:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:59,600 INFO L225 Difference]: With dead ends: 23 [2020-12-09 20:34:59,600 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:34:59,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-09 20:34:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:34:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:34:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:34:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:34:59,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-09 20:34:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:59,601 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:34:59,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:34:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:34:59,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:34:59,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-09 20:34:59,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:34:59,860 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-09 20:34:59,860 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:34:59,861 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-12-09 20:34:59,861 INFO L258 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= 0 ULTIMATE.start_main_~x~0)) [2020-12-09 20:34:59,862 INFO L262 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-12-09 20:34:59,862 INFO L265 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: true [2020-12-09 20:34:59,862 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-09 20:34:59,862 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-12-09 20:34:59,863 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:34:59,863 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-12-09 20:34:59,863 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-09 20:34:59,863 INFO L262 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-12-09 20:34:59,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:34:59 BoogieIcfgContainer [2020-12-09 20:34:59,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:34:59,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:34:59,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:34:59,900 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:34:59,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:58" (3/4) ... [2020-12-09 20:34:59,908 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:34:59,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 20:34:59,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 20:34:59,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:34:59,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a926525-e408-433f-a879-20c7184f4667/bin/utaipan/witness.graphml [2020-12-09 20:34:59,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:34:59,992 INFO L168 Benchmark]: Toolchain (without parser) took 2158.66 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 65.4 MB in the beginning and 81.7 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:59,993 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 77.6 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:59,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.43 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 56.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:59,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.21 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 55.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:59,994 INFO L168 Benchmark]: Boogie Preprocessor took 16.61 ms. Allocated memory is still 94.4 MB. Free memory was 55.4 MB in the beginning and 54.6 MB in the end (delta: 865.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:59,995 INFO L168 Benchmark]: RCFGBuilder took 185.15 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 43.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:59,996 INFO L168 Benchmark]: TraceAbstraction took 1689.87 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 43.0 MB in the beginning and 83.8 MB in the end (delta: -40.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:59,996 INFO L168 Benchmark]: Witness Printer took 91.74 ms. Allocated memory is still 113.2 MB. Free memory was 83.8 MB in the beginning and 81.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:59,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 77.6 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 142.43 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 56.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.21 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 55.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.61 ms. Allocated memory is still 94.4 MB. Free memory was 55.4 MB in the beginning and 54.6 MB in the end (delta: 865.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 185.15 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 43.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1689.87 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 43.0 MB in the beginning and 83.8 MB in the end (delta: -40.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 91.74 ms. Allocated memory is still 113.2 MB. Free memory was 83.8 MB in the beginning and 81.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 53 SDslu, 13 SDs, 0 SdLazy, 72 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=5, 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, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 11 HoareAnnotationTreeSize, 2 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2435 SizeOfPredicates, 2 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 66/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...