./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/MenloPark.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/MenloPark.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 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:02:24,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:24,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:24,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:24,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:24,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:24,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:24,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:24,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:24,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:24,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:24,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:24,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:24,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:24,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:24,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:24,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:24,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:24,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:24,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:24,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:24,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:24,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:24,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:24,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:24,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:24,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:24,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:24,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:24,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:24,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:24,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:24,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:24,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:24,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:24,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:24,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:24,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:24,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:24,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:24,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:24,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:24,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:24,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:24,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:24,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:24,396 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:24,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:24,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:24,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:24,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:24,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:24,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:24,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:24,399 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:24,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:24,399 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:24,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:24,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:24,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:24,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:24,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:24,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:24,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:24,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:24,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:24,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:24,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:24,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:24,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:24,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2020-10-26 04:02:24,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:24,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:24,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:24,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:24,913 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:24,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/MenloPark.c [2020-10-26 04:02:25,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4d7895a/c38e5f266d474d2cb2bdd51ba586c024/FLAGc70fa717f [2020-10-26 04:02:25,592 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:25,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/MenloPark.c [2020-10-26 04:02:25,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4d7895a/c38e5f266d474d2cb2bdd51ba586c024/FLAGc70fa717f [2020-10-26 04:02:25,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4d7895a/c38e5f266d474d2cb2bdd51ba586c024 [2020-10-26 04:02:25,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:25,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:25,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:25,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:25,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:25,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:25" (1/1) ... [2020-10-26 04:02:26,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13539023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:25, skipping insertion in model container [2020-10-26 04:02:26,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:25" (1/1) ... [2020-10-26 04:02:26,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:26,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:26,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:26,197 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:26,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:26,228 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:26,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26 WrapperNode [2020-10-26 04:02:26,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:26,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:26,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:26,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:26,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:26,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:26,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:26,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:26,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (1/1) ... [2020-10-26 04:02:26,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:26,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:26,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:26,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:26,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (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 04:02:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:26,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:26,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:26,625 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:26,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:26 BoogieIcfgContainer [2020-10-26 04:02:26,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:26,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:26,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:26,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:26,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:25" (1/3) ... [2020-10-26 04:02:26,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f18c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:26, skipping insertion in model container [2020-10-26 04:02:26,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:26" (2/3) ... [2020-10-26 04:02:26,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f18c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:26, skipping insertion in model container [2020-10-26 04:02:26,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:26" (3/3) ... [2020-10-26 04:02:26,639 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2020-10-26 04:02:26,656 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:26,662 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:02:26,686 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:02:26,751 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:26,752 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:26,752 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:26,752 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:26,752 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:26,752 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:26,753 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:26,753 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-26 04:02:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:02:26,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:26,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:02:26,779 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 04:02:26,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:26,786 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-26 04:02:26,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:26,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773434137] [2020-10-26 04:02:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:26,981 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 04:02:26,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773434137] [2020-10-26 04:02:26,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:26,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:26,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202568972] [2020-10-26 04:02:26,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:26,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:27,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:27,013 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-10-26 04:02:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,106 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-26 04:02:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:27,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-26 04:02:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,121 INFO L225 Difference]: With dead ends: 30 [2020-10-26 04:02:27,121 INFO L226 Difference]: Without dead ends: 17 [2020-10-26 04:02:27,124 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 04:02:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-26 04:02:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-26 04:02:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-26 04:02:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-26 04:02:27,173 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-10-26 04:02:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,174 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-26 04:02:27,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-26 04:02:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:02:27,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:02:27,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:27,176 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 04:02:27,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,177 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-10-26 04:02:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351620811] [2020-10-26 04:02:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,227 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 04:02:27,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351620811] [2020-10-26 04:02:27,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:27,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:02:27,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217157841] [2020-10-26 04:02:27,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:02:27,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:02:27,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:02:27,233 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-10-26 04:02:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,342 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-26 04:02:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:02:27,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-26 04:02:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,344 INFO L225 Difference]: With dead ends: 22 [2020-10-26 04:02:27,345 INFO L226 Difference]: Without dead ends: 21 [2020-10-26 04:02:27,346 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 04:02:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-26 04:02:27,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-10-26 04:02:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 04:02:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-10-26 04:02:27,351 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2020-10-26 04:02:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,351 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-10-26 04:02:27,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:02:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-10-26 04:02:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:02:27,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:02:27,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:02:27,353 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 04:02:27,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,354 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-10-26 04:02:27,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566342474] [2020-10-26 04:02:27,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,390 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 04:02:27,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566342474] [2020-10-26 04:02:27,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:27,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:27,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122404244] [2020-10-26 04:02:27,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:27,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:27,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:27,394 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2020-10-26 04:02:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,481 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-10-26 04:02:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:27,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:02:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,485 INFO L225 Difference]: With dead ends: 20 [2020-10-26 04:02:27,487 INFO L226 Difference]: Without dead ends: 19 [2020-10-26 04:02:27,488 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 04:02:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-26 04:02:27,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-26 04:02:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 04:02:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-26 04:02:27,497 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2020-10-26 04:02:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,497 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-26 04:02:27,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-26 04:02:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 04:02:27,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:02:27,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:02:27,499 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 04:02:27,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,501 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-10-26 04:02:27,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866455873] [2020-10-26 04:02:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,540 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 04:02:27,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866455873] [2020-10-26 04:02:27,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:27,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:27,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9488492] [2020-10-26 04:02:27,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:27,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:27,544 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2020-10-26 04:02:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,611 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-26 04:02:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:27,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 04:02:27,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,613 INFO L225 Difference]: With dead ends: 20 [2020-10-26 04:02:27,614 INFO L226 Difference]: Without dead ends: 19 [2020-10-26 04:02:27,614 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 04:02:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-26 04:02:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-26 04:02:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-26 04:02:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-26 04:02:27,619 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-10-26 04:02:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,619 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-26 04:02:27,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-26 04:02:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 04:02:27,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:02:27,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:02:27,621 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 04:02:27,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2020-10-26 04:02:27,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057665150] [2020-10-26 04:02:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,656 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 04:02:27,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057665150] [2020-10-26 04:02:27,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:27,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:27,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842708765] [2020-10-26 04:02:27,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:27,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:27,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:27,659 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-10-26 04:02:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,705 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-26 04:02:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:27,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-26 04:02:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,707 INFO L225 Difference]: With dead ends: 22 [2020-10-26 04:02:27,707 INFO L226 Difference]: Without dead ends: 21 [2020-10-26 04:02:27,707 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 04:02:27,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-26 04:02:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-10-26 04:02:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-26 04:02:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-26 04:02:27,712 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2020-10-26 04:02:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,712 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-26 04:02:27,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-26 04:02:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 04:02:27,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:02:27,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 04:02:27,714 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 04:02:27,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,714 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2020-10-26 04:02:27,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577282023] [2020-10-26 04:02:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,743 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 04:02:27,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577282023] [2020-10-26 04:02:27,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:27,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:27,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109256344] [2020-10-26 04:02:27,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:27,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:27,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:27,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:27,745 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 3 states. [2020-10-26 04:02:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:27,787 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-26 04:02:27,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:27,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-26 04:02:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:27,789 INFO L225 Difference]: With dead ends: 22 [2020-10-26 04:02:27,789 INFO L226 Difference]: Without dead ends: 21 [2020-10-26 04:02:27,789 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 04:02:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-26 04:02:27,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-26 04:02:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 04:02:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-10-26 04:02:27,794 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2020-10-26 04:02:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:27,794 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-10-26 04:02:27,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-10-26 04:02:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 04:02:27,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:27,795 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:02:27,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 04:02:27,796 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 04:02:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:27,797 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-10-26 04:02:27,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:27,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941482718] [2020-10-26 04:02:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,855 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 04:02:27,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941482718] [2020-10-26 04:02:27,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815644224] [2020-10-26 04:02:27,856 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 04:02:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:27,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:02:27,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:28,025 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 04:02:28,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:28,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-26 04:02:28,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579911893] [2020-10-26 04:02:28,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 04:02:28,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:28,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 04:02:28,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:02:28,028 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-10-26 04:02:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:28,192 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-10-26 04:02:28,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:02:28,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-26 04:02:28,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:28,193 INFO L225 Difference]: With dead ends: 30 [2020-10-26 04:02:28,194 INFO L226 Difference]: Without dead ends: 29 [2020-10-26 04:02:28,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:02:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-26 04:02:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-10-26 04:02:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 04:02:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-26 04:02:28,203 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2020-10-26 04:02:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:28,204 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-26 04:02:28,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 04:02:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-26 04:02:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 04:02:28,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:28,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:02:28,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-26 04:02:28,419 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 04:02:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:28,421 INFO L82 PathProgramCache]: Analyzing trace with hash 926504987, now seen corresponding path program 1 times [2020-10-26 04:02:28,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:28,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450723988] [2020-10-26 04:02:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:28,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450723988] [2020-10-26 04:02:28,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686071296] [2020-10-26 04:02:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:28,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:02:28,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:28,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:28,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-26 04:02:28,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761889085] [2020-10-26 04:02:28,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:02:28,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:28,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:02:28,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:02:28,579 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2020-10-26 04:02:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:28,673 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-10-26 04:02:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 04:02:28,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-26 04:02:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:28,675 INFO L225 Difference]: With dead ends: 29 [2020-10-26 04:02:28,675 INFO L226 Difference]: Without dead ends: 28 [2020-10-26 04:02:28,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:02:28,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-26 04:02:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2020-10-26 04:02:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-26 04:02:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-10-26 04:02:28,682 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2020-10-26 04:02:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:28,682 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-10-26 04:02:28,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:02:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-10-26 04:02:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 04:02:28,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:28,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-26 04:02:28,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:28,885 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 04:02:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:28,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1343116429, now seen corresponding path program 1 times [2020-10-26 04:02:28,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:28,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103920340] [2020-10-26 04:02:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:28,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103920340] [2020-10-26 04:02:28,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949779160] [2020-10-26 04:02:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-26 04:02:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:28,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:02:28,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:29,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:29,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-26 04:02:29,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553727233] [2020-10-26 04:02:29,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:02:29,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:29,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:02:29,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:02:29,016 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2020-10-26 04:02:29,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:29,086 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-26 04:02:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:02:29,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-26 04:02:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:29,087 INFO L225 Difference]: With dead ends: 24 [2020-10-26 04:02:29,087 INFO L226 Difference]: Without dead ends: 23 [2020-10-26 04:02:29,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:02:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-26 04:02:29,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-26 04:02:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 04:02:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-26 04:02:29,093 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2020-10-26 04:02:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:29,093 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-26 04:02:29,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:02:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-26 04:02:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 04:02:29,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:29,095 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-26 04:02:29,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:29,305 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 04:02:29,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:29,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1313063709, now seen corresponding path program 1 times [2020-10-26 04:02:29,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:29,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039408294] [2020-10-26 04:02:29,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:29,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039408294] [2020-10-26 04:02:29,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859627991] [2020-10-26 04:02:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-26 04:02:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:29,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:29,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:29,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:29,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-26 04:02:29,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349766177] [2020-10-26 04:02:29,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:02:29,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:29,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:02:29,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:02:29,406 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 5 states. [2020-10-26 04:02:29,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:29,524 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-10-26 04:02:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:02:29,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-26 04:02:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:29,526 INFO L225 Difference]: With dead ends: 35 [2020-10-26 04:02:29,526 INFO L226 Difference]: Without dead ends: 34 [2020-10-26 04:02:29,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:02:29,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-26 04:02:29,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-10-26 04:02:29,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-26 04:02:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-26 04:02:29,533 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 13 [2020-10-26 04:02:29,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:29,533 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-26 04:02:29,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:02:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-26 04:02:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 04:02:29,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:29,534 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-10-26 04:02:29,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:29,736 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 04:02:29,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:29,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2050269365, now seen corresponding path program 1 times [2020-10-26 04:02:29,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:29,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974292776] [2020-10-26 04:02:29,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:29,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974292776] [2020-10-26 04:02:29,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340507217] [2020-10-26 04:02:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:29,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:02:29,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:29,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:29,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2020-10-26 04:02:29,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669297257] [2020-10-26 04:02:29,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:02:29,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:29,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:02:29,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:02:29,824 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 4 states. [2020-10-26 04:02:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:29,844 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-10-26 04:02:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:29,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 04:02:29,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:29,845 INFO L225 Difference]: With dead ends: 30 [2020-10-26 04:02:29,845 INFO L226 Difference]: Without dead ends: 28 [2020-10-26 04:02:29,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 04:02:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-26 04:02:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-26 04:02:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-26 04:02:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-26 04:02:29,851 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2020-10-26 04:02:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:29,851 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-26 04:02:29,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:02:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-26 04:02:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 04:02:29,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:29,852 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1] [2020-10-26 04:02:30,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-26 04:02:30,064 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 04:02:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:30,065 INFO L82 PathProgramCache]: Analyzing trace with hash 844787553, now seen corresponding path program 2 times [2020-10-26 04:02:30,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:30,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772464138] [2020-10-26 04:02:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:30,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772464138] [2020-10-26 04:02:30,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458311925] [2020-10-26 04:02:30,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:30,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 04:02:30,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:02:30,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 04:02:30,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:30,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:30,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-10-26 04:02:30,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383482747] [2020-10-26 04:02:30,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 04:02:30,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:30,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 04:02:30,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-26 04:02:30,468 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 13 states. [2020-10-26 04:02:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:30,918 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2020-10-26 04:02:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 04:02:30,919 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2020-10-26 04:02:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:30,920 INFO L225 Difference]: With dead ends: 53 [2020-10-26 04:02:30,920 INFO L226 Difference]: Without dead ends: 52 [2020-10-26 04:02:30,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-10-26 04:02:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-26 04:02:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-26 04:02:30,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-26 04:02:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-26 04:02:30,927 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2020-10-26 04:02:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:30,928 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-26 04:02:30,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 04:02:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-26 04:02:30,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 04:02:30,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:30,928 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1] [2020-10-26 04:02:31,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:31,134 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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 04:02:31,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash 418610411, now seen corresponding path program 2 times [2020-10-26 04:02:31,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:31,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669766864] [2020-10-26 04:02:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:02:31,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669766864] [2020-10-26 04:02:31,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708354889] [2020-10-26 04:02:31,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:31,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 04:02:31,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:02:31,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 04:02:31,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:02:31,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:31,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-26 04:02:31,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998353514] [2020-10-26 04:02:31,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:02:31,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:31,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:02:31,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:02:31,257 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 7 states. [2020-10-26 04:02:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:31,322 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-26 04:02:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:02:31,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 04:02:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:31,324 INFO L225 Difference]: With dead ends: 48 [2020-10-26 04:02:31,324 INFO L226 Difference]: Without dead ends: 47 [2020-10-26 04:02:31,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:02:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-26 04:02:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-26 04:02:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-26 04:02:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-26 04:02:31,332 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 18 [2020-10-26 04:02:31,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:31,332 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-26 04:02:31,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:02:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-26 04:02:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 04:02:31,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:31,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1] [2020-10-26 04:02:31,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:31,546 INFO L429 AbstractCegarLoop]: === Iteration 14 === [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 04:02:31,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:31,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1442319379, now seen corresponding path program 2 times [2020-10-26 04:02:31,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:31,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690794991] [2020-10-26 04:02:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 04:02:31,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690794991] [2020-10-26 04:02:31,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662383426] [2020-10-26 04:02:31,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:31,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 04:02:31,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:02:31,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 04:02:31,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:31,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:31,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2020-10-26 04:02:31,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478632537] [2020-10-26 04:02:31,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:02:31,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:31,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:02:31,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:02:31,678 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 6 states. [2020-10-26 04:02:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:31,739 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2020-10-26 04:02:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:02:31,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-26 04:02:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:31,740 INFO L225 Difference]: With dead ends: 47 [2020-10-26 04:02:31,740 INFO L226 Difference]: Without dead ends: 46 [2020-10-26 04:02:31,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:02:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-26 04:02:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2020-10-26 04:02:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-26 04:02:31,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2020-10-26 04:02:31,747 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 20 [2020-10-26 04:02:31,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:31,747 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2020-10-26 04:02:31,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:02:31,748 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2020-10-26 04:02:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 04:02:31,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:31,749 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1] [2020-10-26 04:02:31,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-26 04:02:31,961 INFO L429 AbstractCegarLoop]: === Iteration 15 === [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 04:02:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:31,962 INFO L82 PathProgramCache]: Analyzing trace with hash 747995697, now seen corresponding path program 3 times [2020-10-26 04:02:31,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:31,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671826109] [2020-10-26 04:02:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:32,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671826109] [2020-10-26 04:02:32,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843332695] [2020-10-26 04:02:32,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:32,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-26 04:02:32,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:02:32,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:02:32,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 04:02:32,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:32,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 20 [2020-10-26 04:02:32,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897319447] [2020-10-26 04:02:32,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-26 04:02:32,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:32,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-26 04:02:32,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2020-10-26 04:02:32,579 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 22 states. [2020-10-26 04:02:33,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:33,803 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-10-26 04:02:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 04:02:33,804 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 38 [2020-10-26 04:02:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:33,804 INFO L225 Difference]: With dead ends: 42 [2020-10-26 04:02:33,805 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:02:33,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2020-10-26 04:02:33,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:02:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:02:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:02:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:02:33,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-10-26 04:02:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:33,807 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:02:33,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-26 04:02:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:02:33,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:02:34,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-26 04:02:34,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:02:34,207 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 27 [2020-10-26 04:02:34,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-26 04:02:34,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:02:34,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:02:34,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-26 04:02:34,212 INFO L277 CegarLoopResult]: At program point L27(lines 16 28) the Hoare annotation is: true [2020-10-26 04:02:34,212 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-26 04:02:34,212 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-26 04:02:34,212 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-26 04:02:34,212 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-26 04:02:34,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 04:02:34,213 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-10-26 04:02:34,214 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (<= 100 ULTIMATE.start_main_~y~0)) (.cse3 (+ ULTIMATE.start_main_~z~0 100)) (.cse1 (<= ULTIMATE.start_main_~z~0 1)) (.cse2 (<= ULTIMATE.start_main_~y~0 100))) (or (and .cse0 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483547)) .cse1 (<= 1 ULTIMATE.start_main_~z~0) .cse2) (and (<= .cse3 ULTIMATE.start_main_~y~0) (<= 0 (+ ULTIMATE.start_main_~z~0 1)) (<= ULTIMATE.start_main_~y~0 99) (<= ULTIMATE.start_main_~x~0 2147483547)) (and .cse0 (<= ULTIMATE.start_main_~y~0 .cse3) (<= ULTIMATE.start_main_~x~0 2147483448) .cse1 .cse2))) [2020-10-26 04:02:34,214 INFO L274 CegarLoopResult]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2020-10-26 04:02:34,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:34 BoogieIcfgContainer [2020-10-26 04:02:34,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:34,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:34,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:34,234 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:34,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:26" (3/4) ... [2020-10-26 04:02:34,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:02:34,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:02:34,251 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:02:34,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:34,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:34,314 INFO L168 Benchmark]: Toolchain (without parser) took 8333.39 ms. Allocated memory was 41.9 MB in the beginning and 92.3 MB in the end (delta: 50.3 MB). Free memory was 20.0 MB in the beginning and 53.6 MB in the end (delta: -33.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,314 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 41.9 MB. Free memory was 22.6 MB in the beginning and 22.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:34,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.73 ms. Allocated memory is still 41.9 MB. Free memory was 19.4 MB in the beginning and 20.4 MB in the end (delta: -926.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 41.9 MB. Free memory was 20.4 MB in the beginning and 19.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,321 INFO L168 Benchmark]: Boogie Preprocessor took 22.74 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 18.3 MB in the end (delta: 862.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:34,321 INFO L168 Benchmark]: RCFGBuilder took 337.00 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.1 MB in the beginning and 31.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,323 INFO L168 Benchmark]: TraceAbstraction took 7603.94 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 30.9 MB in the beginning and 55.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,323 INFO L168 Benchmark]: Witness Printer took 78.79 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 53.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:34,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 41.9 MB. Free memory was 22.6 MB in the beginning and 22.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.73 ms. Allocated memory is still 41.9 MB. Free memory was 19.4 MB in the beginning and 20.4 MB in the end (delta: -926.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 41.9 MB. Free memory was 20.4 MB in the beginning and 19.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.74 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 18.3 MB in the end (delta: 862.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 337.00 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.1 MB in the beginning and 31.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7603.94 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 30.9 MB in the beginning and 55.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. * Witness Printer took 78.79 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 53.6 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((100 <= y && x <= y + 2147483547) && z <= 1) && 1 <= z) && y <= 100) || (((z + 100 <= y && 0 <= z + 1) && y <= 99) && x <= 2147483547)) || ((((100 <= y && y <= z + 100) && x <= 2147483448) && z <= 1) && y <= 100) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 15, TraceHistogramMax: 6, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 141 SDslu, 48 SDs, 0 SdLazy, 984 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=12, 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, 15 MinimizatonAttempts, 32 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 55 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 279 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 36380 SizeOfPredicates, 8 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 31/282 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...