./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/hostid.i --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/busybox-1.22.0/hostid.i -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 3b6e96321d82dea19b0b24b62173907aded16288 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:11:58,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:11:58,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:11:58,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:11:58,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:11:58,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:11:58,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:11:58,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:11:58,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:11:58,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:11:58,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:11:58,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:11:58,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:11:58,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:11:58,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:11:58,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:11:58,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:11:58,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:11:58,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:11:58,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:11:58,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:11:58,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:11:58,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:11:58,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:11:58,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:11:58,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:11:58,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:11:58,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:11:58,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:11:58,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:11:58,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:11:58,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:11:58,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:11:58,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:11:58,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:11:58,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:11:58,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:11:58,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:11:58,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:11:58,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:11:58,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:11:58,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:11:58,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:11:58,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:11:58,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:11:58,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:11:58,517 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:11:58,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:11:58,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:11:58,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:11:58,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:11:58,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:11:58,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:11:58,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:11:58,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:11:58,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:11:58,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:11:58,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:11:58,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:11:58,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:11:58,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:11:58,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:11:58,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:11:58,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:11:58,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:11:58,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:11:58,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:11:58,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:11:58,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:11:58,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:11:58,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6e96321d82dea19b0b24b62173907aded16288 [2020-10-26 04:11:58,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:11:58,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:11:58,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:11:58,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:11:58,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:11:58,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-10-26 04:11:59,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a976a28/94455e263ca347adb43b59ebd90a53d3/FLAGe720ab066 [2020-10-26 04:11:59,752 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:11:59,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-10-26 04:11:59,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a976a28/94455e263ca347adb43b59ebd90a53d3/FLAGe720ab066 [2020-10-26 04:11:59,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a976a28/94455e263ca347adb43b59ebd90a53d3 [2020-10-26 04:11:59,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:11:59,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:11:59,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:11:59,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:11:59,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:11:59,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:11:59" (1/1) ... [2020-10-26 04:11:59,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0be80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:11:59, skipping insertion in model container [2020-10-26 04:11:59,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:11:59" (1/1) ... [2020-10-26 04:11:59,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:12:00,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:12:00,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:12:00,770 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:12:00,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:12:01,334 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:12:01,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01 WrapperNode [2020-10-26 04:12:01,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:12:01,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:12:01,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:12:01,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:12:01,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:12:01,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:12:01,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:12:01,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:12:01,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (1/1) ... [2020-10-26 04:12:01,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:12:01,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:12:01,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:12:01,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:12:01,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (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 04:12:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:12:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:12:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:12:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:12:02,476 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:12:02,476 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-26 04:12:02,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:12:02 BoogieIcfgContainer [2020-10-26 04:12:02,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:12:02,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:12:02,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:12:02,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:12:02,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:11:59" (1/3) ... [2020-10-26 04:12:02,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16539fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:12:02, skipping insertion in model container [2020-10-26 04:12:02,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:12:01" (2/3) ... [2020-10-26 04:12:02,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16539fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:12:02, skipping insertion in model container [2020-10-26 04:12:02,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:12:02" (3/3) ... [2020-10-26 04:12:02,488 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2020-10-26 04:12:02,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:12:02,507 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-26 04:12:02,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-26 04:12:02,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:12:02,573 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:12:02,574 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:12:02,574 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:12:02,574 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:12:02,574 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:12:02,574 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:12:02,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:12:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-26 04:12:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:12:02,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:02,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:12:02,606 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:02,618 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-10-26 04:12:02,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:02,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342139204] [2020-10-26 04:12:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:03,088 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 04:12:03,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342139204] [2020-10-26 04:12:03,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:03,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:12:03,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425688942] [2020-10-26 04:12:03,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:03,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:03,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:03,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:03,114 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-10-26 04:12:03,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:03,191 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2020-10-26 04:12:03,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:03,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:12:03,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:03,231 INFO L225 Difference]: With dead ends: 98 [2020-10-26 04:12:03,231 INFO L226 Difference]: Without dead ends: 49 [2020-10-26 04:12:03,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-26 04:12:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-26 04:12:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-26 04:12:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-10-26 04:12:03,278 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 4 [2020-10-26 04:12:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:03,279 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-10-26 04:12:03,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-10-26 04:12:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 04:12:03,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:03,280 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-26 04:12:03,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:12:03,281 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:03,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2020-10-26 04:12:03,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:03,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140621118] [2020-10-26 04:12:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:12:03,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140621118] [2020-10-26 04:12:03,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:03,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:12:03,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168608820] [2020-10-26 04:12:03,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:03,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:03,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:03,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:03,367 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2020-10-26 04:12:03,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:03,388 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-10-26 04:12:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:03,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-26 04:12:03,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:03,390 INFO L225 Difference]: With dead ends: 49 [2020-10-26 04:12:03,390 INFO L226 Difference]: Without dead ends: 48 [2020-10-26 04:12:03,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-26 04:12:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-26 04:12:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-26 04:12:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-26 04:12:03,399 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 7 [2020-10-26 04:12:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:03,400 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-26 04:12:03,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-26 04:12:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 04:12:03,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:03,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-10-26 04:12:03,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:12:03,401 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2020-10-26 04:12:03,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:03,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619003290] [2020-10-26 04:12:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:03,486 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 04:12:03,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619003290] [2020-10-26 04:12:03,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785501503] [2020-10-26 04:12:03,486 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 04:12:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:03,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:12:03,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:12:03,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:12:03,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-26 04:12:03,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829054552] [2020-10-26 04:12:03,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:12:03,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:03,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:12:03,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:12:03,657 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-10-26 04:12:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:03,689 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-26 04:12:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:12:03,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-26 04:12:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:03,691 INFO L225 Difference]: With dead ends: 48 [2020-10-26 04:12:03,692 INFO L226 Difference]: Without dead ends: 47 [2020-10-26 04:12:03,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 04:12:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-26 04:12:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-26 04:12:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-26 04:12:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-10-26 04:12:03,700 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2020-10-26 04:12:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:03,700 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-10-26 04:12:03,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:12:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-10-26 04:12:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 04:12:03,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:03,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:03,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-26 04:12:03,916 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:03,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:03,917 INFO L82 PathProgramCache]: Analyzing trace with hash -334468778, now seen corresponding path program 1 times [2020-10-26 04:12:03,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:03,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973129409] [2020-10-26 04:12:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:12:03,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973129409] [2020-10-26 04:12:03,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907063715] [2020-10-26 04:12:03,979 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 04:12:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:04,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:12:04,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:12:04,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:04,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-26 04:12:04,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554826576] [2020-10-26 04:12:04,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:12:04,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:04,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:12:04,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:12:04,129 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2020-10-26 04:12:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:04,159 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2020-10-26 04:12:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:12:04,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-26 04:12:04,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:04,161 INFO L225 Difference]: With dead ends: 89 [2020-10-26 04:12:04,161 INFO L226 Difference]: Without dead ends: 50 [2020-10-26 04:12:04,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:12:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-26 04:12:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-26 04:12:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-26 04:12:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-26 04:12:04,169 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 9 [2020-10-26 04:12:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:04,169 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-26 04:12:04,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:12:04,169 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-26 04:12:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 04:12:04,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:04,170 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:04,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:04,384 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:04,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1759164880, now seen corresponding path program 2 times [2020-10-26 04:12:04,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:04,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185966106] [2020-10-26 04:12:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:04,470 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 04:12:04,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185966106] [2020-10-26 04:12:04,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328048241] [2020-10-26 04:12:04,471 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:04,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-26 04:12:04,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:12:04,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 04:12:04,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:04,605 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-26 04:12:04,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-26 04:12:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 04:12:04,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:12:04,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-26 04:12:04,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990902066] [2020-10-26 04:12:04,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:12:04,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:04,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:12:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:12:04,621 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-10-26 04:12:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:04,714 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-26 04:12:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:12:04,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-26 04:12:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:04,716 INFO L225 Difference]: With dead ends: 48 [2020-10-26 04:12:04,716 INFO L226 Difference]: Without dead ends: 40 [2020-10-26 04:12:04,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:12:04,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-26 04:12:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-26 04:12:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-26 04:12:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-26 04:12:04,723 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 12 [2020-10-26 04:12:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:04,723 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-26 04:12:04,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:12:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-26 04:12:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 04:12:04,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:04,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:04,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:04,937 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:04,939 INFO L82 PathProgramCache]: Analyzing trace with hash -172633462, now seen corresponding path program 1 times [2020-10-26 04:12:04,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:04,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33805897] [2020-10-26 04:12:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 04:12:05,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33805897] [2020-10-26 04:12:05,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:05,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:12:05,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811809908] [2020-10-26 04:12:05,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:05,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:05,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:05,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:05,065 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 3 states. [2020-10-26 04:12:05,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:05,101 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-26 04:12:05,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:05,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-26 04:12:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:05,106 INFO L225 Difference]: With dead ends: 64 [2020-10-26 04:12:05,106 INFO L226 Difference]: Without dead ends: 43 [2020-10-26 04:12:05,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 04:12:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-26 04:12:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-26 04:12:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-26 04:12:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-10-26 04:12:05,119 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2020-10-26 04:12:05,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:05,119 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-10-26 04:12:05,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-10-26 04:12:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-26 04:12:05,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:05,122 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:05,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 04:12:05,124 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:05,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:05,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883481, now seen corresponding path program 1 times [2020-10-26 04:12:05,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:05,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466251598] [2020-10-26 04:12:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:05,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 04:12:05,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466251598] [2020-10-26 04:12:05,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:05,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:12:05,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879786368] [2020-10-26 04:12:05,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:05,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:05,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:05,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:05,211 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 3 states. [2020-10-26 04:12:05,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:05,262 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-26 04:12:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:05,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-26 04:12:05,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:05,264 INFO L225 Difference]: With dead ends: 67 [2020-10-26 04:12:05,265 INFO L226 Difference]: Without dead ends: 65 [2020-10-26 04:12:05,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-26 04:12:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2020-10-26 04:12:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-26 04:12:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-10-26 04:12:05,280 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2020-10-26 04:12:05,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:05,280 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-10-26 04:12:05,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:05,281 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-10-26 04:12:05,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-26 04:12:05,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:05,282 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:05,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 04:12:05,283 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:05,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:05,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883426, now seen corresponding path program 1 times [2020-10-26 04:12:05,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:05,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147111409] [2020-10-26 04:12:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 04:12:05,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147111409] [2020-10-26 04:12:05,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:05,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:12:05,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596713639] [2020-10-26 04:12:05,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:05,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:05,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:05,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:05,402 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 3 states. [2020-10-26 04:12:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:05,431 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-26 04:12:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:05,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-26 04:12:05,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:05,433 INFO L225 Difference]: With dead ends: 52 [2020-10-26 04:12:05,433 INFO L226 Difference]: Without dead ends: 51 [2020-10-26 04:12:05,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-26 04:12:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-26 04:12:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 04:12:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-10-26 04:12:05,440 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-10-26 04:12:05,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:05,440 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-10-26 04:12:05,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-10-26 04:12:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 04:12:05,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:05,441 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:05,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 04:12:05,442 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:05,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1387811266, now seen corresponding path program 1 times [2020-10-26 04:12:05,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:05,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181996665] [2020-10-26 04:12:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 04:12:05,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181996665] [2020-10-26 04:12:05,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059290525] [2020-10-26 04:12:05,531 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:05,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:12:05,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 04:12:05,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:05,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 7 [2020-10-26 04:12:05,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374161146] [2020-10-26 04:12:05,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:12:05,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:05,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:12:05,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:12:05,689 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 7 states. [2020-10-26 04:12:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:05,755 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2020-10-26 04:12:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:12:05,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-26 04:12:05,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:05,757 INFO L225 Difference]: With dead ends: 108 [2020-10-26 04:12:05,757 INFO L226 Difference]: Without dead ends: 66 [2020-10-26 04:12:05,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:12:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-26 04:12:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2020-10-26 04:12:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-26 04:12:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-10-26 04:12:05,773 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2020-10-26 04:12:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:05,773 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-10-26 04:12:05,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:12:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-10-26 04:12:05,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-26 04:12:05,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:05,775 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:05,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:05,990 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:05,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1627182508, now seen corresponding path program 1 times [2020-10-26 04:12:05,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:05,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675721188] [2020-10-26 04:12:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 04:12:06,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675721188] [2020-10-26 04:12:06,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:12:06,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:12:06,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517317703] [2020-10-26 04:12:06,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:12:06,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:06,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:12:06,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:06,056 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 3 states. [2020-10-26 04:12:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:06,074 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-10-26 04:12:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:12:06,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-26 04:12:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:06,076 INFO L225 Difference]: With dead ends: 54 [2020-10-26 04:12:06,076 INFO L226 Difference]: Without dead ends: 52 [2020-10-26 04:12:06,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:12:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-26 04:12:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-26 04:12:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-26 04:12:06,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-26 04:12:06,081 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 31 [2020-10-26 04:12:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:06,082 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-26 04:12:06,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:12:06,082 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-26 04:12:06,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 04:12:06,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:06,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:06,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 04:12:06,083 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:06,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:06,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1901645191, now seen corresponding path program 1 times [2020-10-26 04:12:06,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:06,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127646485] [2020-10-26 04:12:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 04:12:06,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127646485] [2020-10-26 04:12:06,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505960247] [2020-10-26 04:12:06,166 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 04:12:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:06,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:12:06,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-26 04:12:06,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:06,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 8 [2020-10-26 04:12:06,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041292570] [2020-10-26 04:12:06,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 04:12:06,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:06,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 04:12:06,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:12:06,342 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 8 states. [2020-10-26 04:12:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:06,404 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2020-10-26 04:12:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:12:06,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-26 04:12:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:06,405 INFO L225 Difference]: With dead ends: 100 [2020-10-26 04:12:06,405 INFO L226 Difference]: Without dead ends: 60 [2020-10-26 04:12:06,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:12:06,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-26 04:12:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-10-26 04:12:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-26 04:12:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-10-26 04:12:06,411 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2020-10-26 04:12:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:06,411 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-10-26 04:12:06,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 04:12:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-10-26 04:12:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 04:12:06,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:06,413 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:06,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-26 04:12:06,624 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:06,625 INFO L82 PathProgramCache]: Analyzing trace with hash 71284786, now seen corresponding path program 1 times [2020-10-26 04:12:06,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:06,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645866514] [2020-10-26 04:12:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 04:12:06,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645866514] [2020-10-26 04:12:06,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622293398] [2020-10-26 04:12:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 04:12:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:06,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 04:12:06,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 04:12:06,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:06,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2020-10-26 04:12:06,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266922385] [2020-10-26 04:12:06,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 04:12:06,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:06,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 04:12:06,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:12:06,907 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 9 states. [2020-10-26 04:12:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:06,975 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2020-10-26 04:12:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 04:12:06,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-26 04:12:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:06,977 INFO L225 Difference]: With dead ends: 114 [2020-10-26 04:12:06,977 INFO L226 Difference]: Without dead ends: 72 [2020-10-26 04:12:06,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:12:06,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-26 04:12:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2020-10-26 04:12:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-26 04:12:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2020-10-26 04:12:06,983 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 38 [2020-10-26 04:12:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:06,983 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2020-10-26 04:12:06,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 04:12:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2020-10-26 04:12:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-26 04:12:06,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:06,984 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:07,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:07,198 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:07,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:07,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1472783081, now seen corresponding path program 1 times [2020-10-26 04:12:07,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:07,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591128096] [2020-10-26 04:12:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-26 04:12:07,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591128096] [2020-10-26 04:12:07,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035543307] [2020-10-26 04:12:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 04:12:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:07,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:12:07,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 04:12:07,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:07,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8] total 10 [2020-10-26 04:12:07,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269347663] [2020-10-26 04:12:07,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 04:12:07,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 04:12:07,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:12:07,517 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 10 states. [2020-10-26 04:12:07,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:07,623 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2020-10-26 04:12:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 04:12:07,624 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-26 04:12:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:07,625 INFO L225 Difference]: With dead ends: 118 [2020-10-26 04:12:07,625 INFO L226 Difference]: Without dead ends: 70 [2020-10-26 04:12:07,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:12:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-26 04:12:07,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-26 04:12:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-26 04:12:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-10-26 04:12:07,630 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 41 [2020-10-26 04:12:07,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:07,630 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-10-26 04:12:07,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 04:12:07,631 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-10-26 04:12:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-26 04:12:07,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:07,632 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:07,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:07,844 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:07,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:07,845 INFO L82 PathProgramCache]: Analyzing trace with hash 312315462, now seen corresponding path program 2 times [2020-10-26 04:12:07,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:07,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33060004] [2020-10-26 04:12:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-26 04:12:07,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33060004] [2020-10-26 04:12:07,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720615960] [2020-10-26 04:12:07,952 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 04:12:08,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-26 04:12:08,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:12:08,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:12:08,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-26 04:12:08,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:08,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-26 04:12:08,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461509007] [2020-10-26 04:12:08,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:12:08,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:08,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:12:08,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:12:08,167 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 4 states. [2020-10-26 04:12:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:08,221 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2020-10-26 04:12:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:12:08,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-26 04:12:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:08,223 INFO L225 Difference]: With dead ends: 68 [2020-10-26 04:12:08,223 INFO L226 Difference]: Without dead ends: 53 [2020-10-26 04:12:08,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 2 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 04:12:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-26 04:12:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-26 04:12:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-26 04:12:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-10-26 04:12:08,227 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46 [2020-10-26 04:12:08,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:08,227 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-10-26 04:12:08,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:12:08,228 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-10-26 04:12:08,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-26 04:12:08,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:08,229 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:08,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-26 04:12:08,438 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:08,439 INFO L82 PathProgramCache]: Analyzing trace with hash -889966142, now seen corresponding path program 2 times [2020-10-26 04:12:08,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:08,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182413989] [2020-10-26 04:12:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-26 04:12:08,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182413989] [2020-10-26 04:12:08,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772797060] [2020-10-26 04:12:08,541 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 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 04:12:08,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-26 04:12:08,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 04:12:08,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:12:08,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-26 04:12:08,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:08,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-26 04:12:08,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474448451] [2020-10-26 04:12:08,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:12:08,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:08,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:12:08,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:12:08,691 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 6 states. [2020-10-26 04:12:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:08,807 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-10-26 04:12:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:12:08,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-10-26 04:12:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:08,809 INFO L225 Difference]: With dead ends: 64 [2020-10-26 04:12:08,809 INFO L226 Difference]: Without dead ends: 63 [2020-10-26 04:12:08,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:12:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-26 04:12:08,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-10-26 04:12:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-26 04:12:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-10-26 04:12:08,816 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 50 [2020-10-26 04:12:08,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:08,818 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-10-26 04:12:08,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:12:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-10-26 04:12:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-26 04:12:08,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:12:08,823 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:12:09,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-26 04:12:09,032 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:12:09,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:12:09,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1819146527, now seen corresponding path program 1 times [2020-10-26 04:12:09,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:12:09,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824374851] [2020-10-26 04:12:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:12:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-26 04:12:09,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824374851] [2020-10-26 04:12:09,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095397089] [2020-10-26 04:12:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:12:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:12:09,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:12:09,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:12:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:12:09,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:12:09,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 11 [2020-10-26 04:12:09,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464189565] [2020-10-26 04:12:09,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 04:12:09,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:12:09,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 04:12:09,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:12:09,398 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 11 states. [2020-10-26 04:12:09,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:12:09,537 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2020-10-26 04:12:09,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 04:12:09,538 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-26 04:12:09,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:12:09,538 INFO L225 Difference]: With dead ends: 87 [2020-10-26 04:12:09,538 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:12:09,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:12:09,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:12:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:12:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:12:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:12:09,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-10-26 04:12:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:12:09,542 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:12:09,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 04:12:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:12:09,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:12:09,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-26 04:12:09,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:12:10,024 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2020-10-26 04:12:10,226 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,226 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-10-26 04:12:10,226 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,226 INFO L274 CegarLoopResult]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2020-10-26 04:12:10,226 INFO L274 CegarLoopResult]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L270 CegarLoopResult]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~j~0 0)) (.cse2 (= ULTIMATE.start_main_~i~4 0)) (.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse8 (<= 1 ULTIMATE.start_main_~j~0)) (.cse7 (< ULTIMATE.start_main_~i~4 268435454)) (.cse6 (<= 1 ULTIMATE.start_main_~i~4)) (.cse4 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse7 .cse6 .cse4 .cse5))) [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point L1886(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point L1886-1(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L274 CegarLoopResult]: For program point L1886-2(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,227 INFO L277 CegarLoopResult]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1887(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1887-2(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1887-3(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L270 CegarLoopResult]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (or (<= 1 ULTIMATE.start_main_~i~3) (= ULTIMATE.start_main_~i~3 0)) [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,228 INFO L270 CegarLoopResult]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-26 04:12:10,229 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-10-26 04:12:10,229 INFO L274 CegarLoopResult]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2020-10-26 04:12:10,229 INFO L274 CegarLoopResult]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2020-10-26 04:12:10,231 INFO L270 CegarLoopResult]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~j~0) (<= 1 ULTIMATE.start_main_~i~4) .cse2 .cse3) (and .cse0 .cse1 (= ULTIMATE.start_main_~i~4 0) .cse2 .cse3))) [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point L1782-1(lines 1782 1783) no Hoare annotation was computed. [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2020-10-26 04:12:10,232 INFO L274 CegarLoopResult]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2020-10-26 04:12:10,233 INFO L270 CegarLoopResult]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~5 0) .cse3) (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~i~5) .cse2 .cse3))) [2020-10-26 04:12:10,233 INFO L274 CegarLoopResult]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2020-10-26 04:12:10,233 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-26 04:12:10,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-10-26 04:12:10,234 INFO L270 CegarLoopResult]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-26 04:12:10,234 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-10-26 04:12:10,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:12:10,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-10-26 04:12:10,234 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-26 04:12:10,235 INFO L270 CegarLoopResult]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-26 04:12:10,235 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-26 04:12:10,235 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-10-26 04:12:10,235 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-26 04:12:10,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:12:10 BoogieIcfgContainer [2020-10-26 04:12:10,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:12:10,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:12:10,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:12:10,293 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:12:10,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:12:02" (3/4) ... [2020-10-26 04:12:10,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:12:10,320 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-26 04:12:10,320 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-26 04:12:10,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:12:10,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:12:10,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:12:10,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:12:10,404 INFO L168 Benchmark]: Toolchain (without parser) took 10441.86 ms. Allocated memory was 46.1 MB in the beginning and 174.1 MB in the end (delta: 127.9 MB). Free memory was 29.4 MB in the beginning and 83.3 MB in the end (delta: -53.9 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,405 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:12:10,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1367.32 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 28.7 MB in the beginning and 40.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.72 ms. Allocated memory is still 73.4 MB. Free memory was 40.4 MB in the beginning and 36.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,407 INFO L168 Benchmark]: Boogie Preprocessor took 102.60 ms. Allocated memory is still 73.4 MB. Free memory was 36.7 MB in the beginning and 34.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,407 INFO L168 Benchmark]: RCFGBuilder took 886.30 ms. Allocated memory is still 73.4 MB. Free memory was 34.1 MB in the beginning and 43.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,408 INFO L168 Benchmark]: TraceAbstraction took 7809.91 ms. Allocated memory was 73.4 MB in the beginning and 174.1 MB in the end (delta: 100.7 MB). Free memory was 43.1 MB in the beginning and 87.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 98.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,408 INFO L168 Benchmark]: Witness Printer took 111.69 ms. Allocated memory is still 174.1 MB. Free memory was 87.5 MB in the beginning and 83.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:12:10,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1367.32 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 28.7 MB in the beginning and 40.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 149.72 ms. Allocated memory is still 73.4 MB. Free memory was 40.4 MB in the beginning and 36.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.60 ms. Allocated memory is still 73.4 MB. Free memory was 36.7 MB in the beginning and 34.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 886.30 ms. Allocated memory is still 73.4 MB. Free memory was 34.1 MB in the beginning and 43.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7809.91 ms. Allocated memory was 73.4 MB in the beginning and 174.1 MB in the end (delta: 100.7 MB). Free memory was 43.1 MB in the beginning and 87.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 98.1 MB. Max. memory is 16.1 GB. * Witness Printer took 111.69 ms. Allocated memory is still 174.1 MB. Free memory was 87.5 MB in the beginning and 83.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: (((((((argc <= 10000 && 1 <= i) && i == 0) && j == 0) && 1 <= argc) && cond == 1) || ((((((argc <= 10000 && 1 <= i) && 1 <= i) && i < 268435454) && j == 0) && 1 <= argc) && cond == 1)) || (((((argc <= 10000 && 1 <= i) && 1 <= j) && i == 0) && 1 <= argc) && cond == 1)) || ((((((argc <= 10000 && 1 <= i) && 1 <= j) && i < 268435454) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((argc <= 10000 && 1 <= i) && 1 <= j) && 1 <= i) && 1 <= argc) && cond == 1) || ((((argc <= 10000 && 1 <= i) && i == 0) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: ((((argc <= 10000 && 1 <= i) && 1 <= argc) && i == 0) && cond == 1) || ((((argc <= 10000 && 1 <= i) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 272 SDslu, 900 SDs, 0 SdLazy, 422 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 56 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 199 HoareAnnotationTreeSize, 8 FomulaSimplifications, 527 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 744 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 45433 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1738 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 467/672 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...