./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.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/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:05:43,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:05:43,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:05:43,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:05:43,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:05:43,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:05:43,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:05:43,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:05:43,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:05:43,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:05:43,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:05:43,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:05:43,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:05:43,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:05:43,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:05:43,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:05:43,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:05:43,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:05:43,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:05:43,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:05:43,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:05:43,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:05:43,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:05:43,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:05:43,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:05:43,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:05:43,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:05:43,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:05:43,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:05:43,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:05:43,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:05:43,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:05:43,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:05:43,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:05:43,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:05:43,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:05:43,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:05:43,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:05:43,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:05:43,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:05:43,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:05:43,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:05:43,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:05:43,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:05:43,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:05:43,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:05:43,312 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:05:43,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:05:43,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:05:43,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:05:43,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:05:43,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:05:43,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:05:43,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:05:43,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:05:43,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:05:43,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:05:43,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:05:43,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:05:43,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:05:43,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:05:43,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:05:43,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:05:43,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:05:43,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:05:43,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:05:43,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:05:43,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:05:43,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:05:43,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:05:43,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2020-10-26 04:05:43,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:05:43,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:05:43,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:05:43,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:05:43,802 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:05:43,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2020-10-26 04:05:43,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41b704f5/f9934758e4e645e19d6003bd07359797/FLAGcd38cdb03 [2020-10-26 04:05:44,504 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:05:44,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2020-10-26 04:05:44,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41b704f5/f9934758e4e645e19d6003bd07359797/FLAGcd38cdb03 [2020-10-26 04:05:44,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41b704f5/f9934758e4e645e19d6003bd07359797 [2020-10-26 04:05:44,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:05:44,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:05:44,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:44,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:05:44,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:05:44,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:44" (1/1) ... [2020-10-26 04:05:44,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1d4183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:44, skipping insertion in model container [2020-10-26 04:05:44,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:44" (1/1) ... [2020-10-26 04:05:44,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:05:44,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:05:45,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:45,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:05:45,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:45,132 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:05:45,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45 WrapperNode [2020-10-26 04:05:45,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:45,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:45,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:05:45,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:05:45,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:45,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:05:45,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:05:45,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:05:45,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (1/1) ... [2020-10-26 04:05:45,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:05:45,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:05:45,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:05:45,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:05:45,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (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 04:05:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:05:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:05:45,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:05:45,541 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:05:45,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:45 BoogieIcfgContainer [2020-10-26 04:05:45,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:05:45,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:05:45,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:05:45,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:05:45,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:05:44" (1/3) ... [2020-10-26 04:05:45,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87858c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:45, skipping insertion in model container [2020-10-26 04:05:45,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:45" (2/3) ... [2020-10-26 04:05:45,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87858c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:45, skipping insertion in model container [2020-10-26 04:05:45,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:45" (3/3) ... [2020-10-26 04:05:45,567 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2020-10-26 04:05:45,604 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:05:45,616 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:05:45,648 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:05:45,697 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:05:45,697 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:05:45,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:05:45,698 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:05:45,698 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:05:45,698 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:05:45,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:05:45,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:05:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-26 04:05:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:05:45,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:45,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:05:45,730 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 04:05:45,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:45,742 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-26 04:05:45,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:45,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291868439] [2020-10-26 04:05:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:45,956 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 04:05:45,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291868439] [2020-10-26 04:05:45,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:45,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:45,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44272626] [2020-10-26 04:05:45,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:45,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:45,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:45,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:45,996 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-10-26 04:05:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:46,104 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-26 04:05:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:46,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-26 04:05:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:46,116 INFO L225 Difference]: With dead ends: 30 [2020-10-26 04:05:46,116 INFO L226 Difference]: Without dead ends: 17 [2020-10-26 04:05:46,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-26 04:05:46,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-26 04:05:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-26 04:05:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-26 04:05:46,161 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-10-26 04:05:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:46,161 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-26 04:05:46,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-26 04:05:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:05:46,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:46,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:05:46,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:05:46,163 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 04:05:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:46,164 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-10-26 04:05:46,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:46,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61317995] [2020-10-26 04:05:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:46,201 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 04:05:46,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61317995] [2020-10-26 04:05:46,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:46,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:46,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502435554] [2020-10-26 04:05:46,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:46,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:46,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:46,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:46,206 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-10-26 04:05:46,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:46,277 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-10-26 04:05:46,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:46,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-26 04:05:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:46,278 INFO L225 Difference]: With dead ends: 16 [2020-10-26 04:05:46,278 INFO L226 Difference]: Without dead ends: 13 [2020-10-26 04:05:46,280 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 04:05:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-26 04:05:46,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-26 04:05:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-26 04:05:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-10-26 04:05:46,283 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2020-10-26 04:05:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:46,284 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-10-26 04:05:46,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-10-26 04:05:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:05:46,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:46,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:05:46,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:05:46,285 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 04:05:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-10-26 04:05:46,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:46,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932809277] [2020-10-26 04:05:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:46,311 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 04:05:46,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932809277] [2020-10-26 04:05:46,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:46,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:46,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083133384] [2020-10-26 04:05:46,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:46,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:46,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:46,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:46,314 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2020-10-26 04:05:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:46,377 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-26 04:05:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:46,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:05:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:46,379 INFO L225 Difference]: With dead ends: 20 [2020-10-26 04:05:46,380 INFO L226 Difference]: Without dead ends: 18 [2020-10-26 04:05:46,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-26 04:05:46,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-26 04:05:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 04:05:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-26 04:05:46,386 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2020-10-26 04:05:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:46,386 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-26 04:05:46,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-26 04:05:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 04:05:46,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:46,388 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:46,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:05:46,388 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 04:05:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:46,389 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-10-26 04:05:46,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:46,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612423699] [2020-10-26 04:05:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:46,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612423699] [2020-10-26 04:05:46,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118909753] [2020-10-26 04:05:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:05:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:46,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 04:05:46,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:05:46,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:05:46,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:05:46,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:05:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:47,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:05:47,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-26 04:05:47,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119624033] [2020-10-26 04:05:47,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 04:05:47,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:47,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 04:05:47,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:05:47,066 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 10 states. [2020-10-26 04:05:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:47,236 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-26 04:05:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:05:47,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-10-26 04:05:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:47,238 INFO L225 Difference]: With dead ends: 18 [2020-10-26 04:05:47,238 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:05:47,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:05:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:05:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:05:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:05:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:05:47,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-26 04:05:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:47,240 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:05:47,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 04:05:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:05:47,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:05:47,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:05:47,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:05:47,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2020-10-26 04:05:47,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:05:47,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:05:47,524 INFO L277 CegarLoopResult]: At program point L18(lines 11 19) the Hoare annotation is: true [2020-10-26 04:05:47,525 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,525 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,525 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,525 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-26 04:05:47,526 INFO L270 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~y~0 2))) (or (and (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483645)) (<= 2 ULTIMATE.start_main_~y~0) .cse0) (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483645) .cse0))) [2020-10-26 04:05:47,526 INFO L274 CegarLoopResult]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2020-10-26 04:05:47,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:05:47 BoogieIcfgContainer [2020-10-26 04:05:47,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:05:47,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:05:47,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:05:47,551 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:05:47,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:45" (3/4) ... [2020-10-26 04:05:47,555 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:05:47,567 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:05:47,567 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:05:47,627 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:05:47,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:05:47,630 INFO L168 Benchmark]: Toolchain (without parser) took 2742.00 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 37.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,631 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:05:47,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.32 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 35.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 34.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:05:47,635 INFO L168 Benchmark]: Boogie Preprocessor took 22.17 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 33.3 MB in the end (delta: 854.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,639 INFO L168 Benchmark]: RCFGBuilder took 351.13 ms. Allocated memory is still 54.5 MB. Free memory was 33.3 MB in the beginning and 37.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,640 INFO L168 Benchmark]: TraceAbstraction took 2000.44 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.2 MB in the beginning and 40.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,640 INFO L168 Benchmark]: Witness Printer took 76.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 37.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:47,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.32 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 35.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 34.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.17 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 33.3 MB in the end (delta: 854.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 351.13 ms. Allocated memory is still 54.5 MB. Free memory was 33.3 MB in the beginning and 37.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2000.44 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.2 MB in the beginning and 40.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 76.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 37.7 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((x <= y + 2147483645 && 2 <= y) && y <= 2) || ((1 <= y && x <= 2147483645) && y <= 2) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 30 SDslu, 4 SDs, 0 SdLazy, 86 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 24 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 1 QuantifiedInterpolants, 1502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/4 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...