./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:06:09,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:06:09,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:06:09,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:06:09,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:06:09,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:06:09,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:06:09,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:06:09,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:06:09,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:06:09,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:06:09,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:06:09,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:06:09,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:06:09,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:06:09,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:06:09,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:06:09,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:06:09,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:06:09,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:06:09,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:06:09,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:06:09,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:06:09,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:06:09,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:06:09,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:06:09,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:06:09,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:06:09,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:06:09,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:06:09,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:06:09,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:06:09,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:06:09,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:06:09,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:06:09,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:06:09,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:06:09,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:06:09,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:06:09,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:06:09,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:06:09,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:06:09,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:06:09,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:06:09,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:06:09,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:06:09,939 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:06:09,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:06:09,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:06:09,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:06:09,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:06:09,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:06:09,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:06:09,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:06:09,942 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:06:09,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:06:09,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:06:09,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:06:09,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:06:09,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:06:09,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:06:09,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:06:09,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:06:09,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:06:09,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:06:09,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:06:09,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:06:09,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:06:09,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:06:09,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:06:09,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 [2020-10-26 04:06:10,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:06:10,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:06:10,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:06:10,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:06:10,361 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:06:10,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2020-10-26 04:06:10,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6956916af/45a63b3fd6854fac886a5de0158c77a6/FLAG995614497 [2020-10-26 04:06:11,131 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:06:11,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2020-10-26 04:06:11,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6956916af/45a63b3fd6854fac886a5de0158c77a6/FLAG995614497 [2020-10-26 04:06:11,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6956916af/45a63b3fd6854fac886a5de0158c77a6 [2020-10-26 04:06:11,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:06:11,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:06:11,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:11,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:06:11,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:06:11,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10484fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11, skipping insertion in model container [2020-10-26 04:06:11,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:06:11,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:06:11,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:11,843 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:06:11,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:06:11,879 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:06:11,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11 WrapperNode [2020-10-26 04:06:11,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:06:11,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:11,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:06:11,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:06:11,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:06:11,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:06:11,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:06:11,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:06:11,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... [2020-10-26 04:06:11,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:06:11,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:06:11,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:06:11,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:06:11,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:06:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:06:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:06:12,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:06:12,223 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:06:12,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:12 BoogieIcfgContainer [2020-10-26 04:06:12,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:06:12,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:06:12,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:06:12,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:06:12,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:06:11" (1/3) ... [2020-10-26 04:06:12,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68049810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:12, skipping insertion in model container [2020-10-26 04:06:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:06:11" (2/3) ... [2020-10-26 04:06:12,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68049810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:06:12, skipping insertion in model container [2020-10-26 04:06:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:12" (3/3) ... [2020-10-26 04:06:12,235 INFO L111 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2020-10-26 04:06:12,248 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:06:12,254 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:06:12,268 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:06:12,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:06:12,298 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:06:12,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:06:12,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:06:12,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:06:12,299 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:06:12,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:06:12,299 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:06:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-26 04:06:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:06:12,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:12,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:06:12,324 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:12,331 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-26 04:06:12,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:12,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134091802] [2020-10-26 04:06:12,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:12,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134091802] [2020-10-26 04:06:12,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:12,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:12,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053755539] [2020-10-26 04:06:12,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:06:12,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:12,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:06:12,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:06:12,578 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2020-10-26 04:06:12,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:12,667 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-10-26 04:06:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:06:12,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-26 04:06:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:12,679 INFO L225 Difference]: With dead ends: 46 [2020-10-26 04:06:12,680 INFO L226 Difference]: Without dead ends: 29 [2020-10-26 04:06:12,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:06:12,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-26 04:06:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2020-10-26 04:06:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 04:06:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-10-26 04:06:12,723 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 4 [2020-10-26 04:06:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:12,724 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-10-26 04:06:12,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:06:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-10-26 04:06:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:06:12,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:12,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:06:12,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:06:12,729 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:12,730 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-26 04:06:12,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:12,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283343890] [2020-10-26 04:06:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:12,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283343890] [2020-10-26 04:06:12,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:12,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:12,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272118787] [2020-10-26 04:06:12,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:06:12,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:12,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:06:12,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:06:12,839 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2020-10-26 04:06:12,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:12,965 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-10-26 04:06:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:06:12,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-26 04:06:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:12,967 INFO L225 Difference]: With dead ends: 31 [2020-10-26 04:06:12,967 INFO L226 Difference]: Without dead ends: 30 [2020-10-26 04:06:12,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:06:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-26 04:06:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2020-10-26 04:06:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-26 04:06:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-26 04:06:12,980 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 4 [2020-10-26 04:06:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:12,980 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-26 04:06:12,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:06:12,981 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-26 04:06:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:06:12,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:12,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:06:12,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:06:12,982 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:12,984 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-26 04:06:12,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:12,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074007830] [2020-10-26 04:06:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:13,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074007830] [2020-10-26 04:06:13,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:13,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:13,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082090011] [2020-10-26 04:06:13,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:13,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:13,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:13,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:13,015 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2020-10-26 04:06:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:13,038 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-10-26 04:06:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:13,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:06:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:13,041 INFO L225 Difference]: With dead ends: 22 [2020-10-26 04:06:13,041 INFO L226 Difference]: Without dead ends: 21 [2020-10-26 04:06:13,041 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 [2020-10-26 04:06:13,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-26 04:06:13,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-26 04:06:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 04:06:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-26 04:06:13,055 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2020-10-26 04:06:13,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:13,056 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-26 04:06:13,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-26 04:06:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:06:13,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:13,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:06:13,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:06:13,058 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:13,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-26 04:06:13,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:13,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157243664] [2020-10-26 04:06:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:06:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:06:13,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157243664] [2020-10-26 04:06:13,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:06:13,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:06:13,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263659775] [2020-10-26 04:06:13,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:06:13,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:06:13,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:06:13,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:06:13,117 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2020-10-26 04:06:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:06:13,149 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-10-26 04:06:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:06:13,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:06:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:06:13,152 INFO L225 Difference]: With dead ends: 21 [2020-10-26 04:06:13,152 INFO L226 Difference]: Without dead ends: 19 [2020-10-26 04:06:13,153 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 [2020-10-26 04:06:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-26 04:06:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-26 04:06:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-26 04:06:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-10-26 04:06:13,160 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2020-10-26 04:06:13,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:06:13,161 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-10-26 04:06:13,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:06:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-10-26 04:06:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:06:13,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:06:13,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:06:13,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:06:13,163 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:06:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:06:13,164 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2020-10-26 04:06:13,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:06:13,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756557614] [2020-10-26 04:06:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:06:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:06:13,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:06:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:06:13,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:06:13,205 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:06:13,206 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:06:13,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 04:06:13,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:06:13 BoogieIcfgContainer [2020-10-26 04:06:13,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:06:13,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:06:13,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:06:13,232 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:06:13,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:06:12" (3/4) ... [2020-10-26 04:06:13,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:06:13,289 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:06:13,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:06:13,292 INFO L168 Benchmark]: Toolchain (without parser) took 1755.42 ms. Allocated memory was 39.8 MB in the beginning and 52.4 MB in the end (delta: 12.6 MB). Free memory was 18.1 MB in the beginning and 35.1 MB in the end (delta: -17.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:13,293 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory is still 22.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:13,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.97 ms. Allocated memory was 39.8 MB in the beginning and 52.4 MB in the end (delta: 12.6 MB). Free memory was 17.5 MB in the beginning and 30.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:13,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.19 ms. Allocated memory is still 52.4 MB. Free memory was 30.8 MB in the beginning and 29.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:13,295 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 28.7 MB in the end (delta: 818.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:13,296 INFO L168 Benchmark]: RCFGBuilder took 276.63 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 32.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:13,297 INFO L168 Benchmark]: TraceAbstraction took 1003.63 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 36.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:06:13,298 INFO L168 Benchmark]: Witness Printer took 58.29 ms. Allocated memory is still 52.4 MB. Free memory was 36.6 MB in the beginning and 35.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:06:13,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory is still 22.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.97 ms. Allocated memory was 39.8 MB in the beginning and 52.4 MB in the end (delta: 12.6 MB). Free memory was 17.5 MB in the beginning and 30.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.19 ms. Allocated memory is still 52.4 MB. Free memory was 30.8 MB in the beginning and 29.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 28.7 MB in the end (delta: 818.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 276.63 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 32.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1003.63 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 36.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Witness Printer took 58.29 ms. Allocated memory is still 52.4 MB. Free memory was 36.6 MB in the beginning and 35.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 [L29] oldx + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 42 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...