./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/byte_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/bitvector/byte_add-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 57155ec4d1c294d255486bcf60492b490ef9efa5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:09:57,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:09:57,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:09:57,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:09:57,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:09:57,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:09:57,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:09:57,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:09:57,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:09:57,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:09:57,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:09:57,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:09:57,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:09:57,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:09:57,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:09:57,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:09:57,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:09:57,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:09:57,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:09:57,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:09:57,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:09:57,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:09:57,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:09:57,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:09:57,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:09:57,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:09:57,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:09:57,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:09:57,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:09:57,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:09:57,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:09:57,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:09:57,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:09:57,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:09:57,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:09:57,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:09:57,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:09:57,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:09:57,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:09:57,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:09:57,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:09:57,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-26 04:09:57,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:09:57,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:09:57,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:09:57,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:09:57,741 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:09:57,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:09:57,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:09:57,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:09:57,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:09:57,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:09:57,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:09:57,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:09:57,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:09:57,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:09:57,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:09:57,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:09:57,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:09:57,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:09:57,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:09:57,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:09:57,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:09:57,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:09:57,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:09:57,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:09:57,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:09:57,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:09:57,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57155ec4d1c294d255486bcf60492b490ef9efa5 [2020-10-26 04:09:58,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:09:58,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:09:58,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:09:58,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:09:58,236 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:09:58,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-26 04:09:58,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf872c1f9/223b4561e4b64b1e974499b823fec0b0/FLAGae8d6ca13 [2020-10-26 04:09:59,023 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:09:59,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-26 04:09:59,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf872c1f9/223b4561e4b64b1e974499b823fec0b0/FLAGae8d6ca13 [2020-10-26 04:09:59,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf872c1f9/223b4561e4b64b1e974499b823fec0b0 [2020-10-26 04:09:59,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:09:59,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:09:59,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:59,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:09:59,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:09:59,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6429626e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59, skipping insertion in model container [2020-10-26 04:09:59,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:09:59,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:09:59,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:59,669 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:09:59,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:59,767 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:09:59,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59 WrapperNode [2020-10-26 04:09:59,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:59,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:59,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:09:59,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:09:59,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:59,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:09:59,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:09:59,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:09:59,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (1/1) ... [2020-10-26 04:09:59,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:09:59,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:09:59,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:09:59,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:09:59,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (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 04:09:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:09:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:09:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:09:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:10:00,594 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:10:00,595 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-26 04:10:00,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:10:00 BoogieIcfgContainer [2020-10-26 04:10:00,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:10:00,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:10:00,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:10:00,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:10:00,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:09:59" (1/3) ... [2020-10-26 04:10:00,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a6c97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:10:00, skipping insertion in model container [2020-10-26 04:10:00,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:59" (2/3) ... [2020-10-26 04:10:00,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a6c97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:10:00, skipping insertion in model container [2020-10-26 04:10:00,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:10:00" (3/3) ... [2020-10-26 04:10:00,610 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2020-10-26 04:10:00,628 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:10:00,633 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-10-26 04:10:00,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-10-26 04:10:00,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:10:00,707 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:10:00,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:10:00,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:10:00,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:10:00,708 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:10:00,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:10:00,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:10:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-26 04:10:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:10:00,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:00,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:10:00,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-26 04:10:00,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:00,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065842492] [2020-10-26 04:10:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:00,997 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 04:10:00,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065842492] [2020-10-26 04:10:00,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:01,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:10:01,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230770686] [2020-10-26 04:10:01,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-26 04:10:01,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:01,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-26 04:10:01,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 04:10:01,027 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-26 04:10:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:01,051 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2020-10-26 04:10:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:10:01,053 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-26 04:10:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:01,065 INFO L225 Difference]: With dead ends: 138 [2020-10-26 04:10:01,065 INFO L226 Difference]: Without dead ends: 69 [2020-10-26 04:10:01,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 04:10:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-26 04:10:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-26 04:10:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-26 04:10:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-26 04:10:01,112 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2020-10-26 04:10:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:01,113 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-26 04:10:01,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-26 04:10:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-26 04:10:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 04:10:01,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:01,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:01,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:10:01,116 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:01,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2020-10-26 04:10:01,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:01,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775926736] [2020-10-26 04:10:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:01,209 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 04:10:01,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775926736] [2020-10-26 04:10:01,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:01,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:10:01,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508019735] [2020-10-26 04:10:01,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:10:01,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:01,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:10:01,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:10:01,213 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand 3 states. [2020-10-26 04:10:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:01,388 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2020-10-26 04:10:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:10:01,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-26 04:10:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:01,391 INFO L225 Difference]: With dead ends: 145 [2020-10-26 04:10:01,391 INFO L226 Difference]: Without dead ends: 98 [2020-10-26 04:10:01,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 04:10:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-26 04:10:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-26 04:10:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-26 04:10:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-10-26 04:10:01,405 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-10-26 04:10:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:01,405 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-10-26 04:10:01,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:10:01,405 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-10-26 04:10:01,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 04:10:01,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:01,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:01,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:10:01,407 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:01,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:01,408 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2020-10-26 04:10:01,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:01,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391687198] [2020-10-26 04:10:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:10:01,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391687198] [2020-10-26 04:10:01,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:01,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:10:01,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380941283] [2020-10-26 04:10:01,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:01,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:01,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:01,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:01,531 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 4 states. [2020-10-26 04:10:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:01,787 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2020-10-26 04:10:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:01,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-26 04:10:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:01,790 INFO L225 Difference]: With dead ends: 221 [2020-10-26 04:10:01,790 INFO L226 Difference]: Without dead ends: 164 [2020-10-26 04:10:01,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 04:10:01,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-26 04:10:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2020-10-26 04:10:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-26 04:10:01,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2020-10-26 04:10:01,803 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2020-10-26 04:10:01,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:01,804 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2020-10-26 04:10:01,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:01,804 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-10-26 04:10:01,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 04:10:01,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:01,806 INFO L422 BasicCegarLoop]: trace histogram [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 04:10:01,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:10:01,806 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:01,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:01,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2020-10-26 04:10:01,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:01,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742465424] [2020-10-26 04:10:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:02,075 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2020-10-26 04:10:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 04:10:02,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742465424] [2020-10-26 04:10:02,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:02,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:10:02,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481313454] [2020-10-26 04:10:02,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:02,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:02,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:02,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:02,099 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand 4 states. [2020-10-26 04:10:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:02,373 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-10-26 04:10:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:02,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-26 04:10:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:02,376 INFO L225 Difference]: With dead ends: 259 [2020-10-26 04:10:02,376 INFO L226 Difference]: Without dead ends: 194 [2020-10-26 04:10:02,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:10:02,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-26 04:10:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2020-10-26 04:10:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-26 04:10:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2020-10-26 04:10:02,390 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2020-10-26 04:10:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:02,391 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2020-10-26 04:10:02,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2020-10-26 04:10:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 04:10:02,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:02,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 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 04:10:02,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:10:02,397 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:02,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:02,398 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2020-10-26 04:10:02,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:02,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277590347] [2020-10-26 04:10:02,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:02,465 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 04:10:02,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277590347] [2020-10-26 04:10:02,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808718183] [2020-10-26 04:10:02,466 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 04:10:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:02,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:10:02,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:10:02,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:02,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-10-26 04:10:02,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182206604] [2020-10-26 04:10:02,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:02,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:02,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:02,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:02,749 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand 4 states. [2020-10-26 04:10:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:03,110 INFO L93 Difference]: Finished difference Result 216 states and 307 transitions. [2020-10-26 04:10:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:03,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-26 04:10:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:03,112 INFO L225 Difference]: With dead ends: 216 [2020-10-26 04:10:03,113 INFO L226 Difference]: Without dead ends: 169 [2020-10-26 04:10:03,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:03,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-26 04:10:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2020-10-26 04:10:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-26 04:10:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 183 transitions. [2020-10-26 04:10:03,139 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 183 transitions. Word has length 26 [2020-10-26 04:10:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:03,140 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 183 transitions. [2020-10-26 04:10:03,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 183 transitions. [2020-10-26 04:10:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-26 04:10:03,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:03,145 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:03,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:03,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:03,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:03,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1301565703, now seen corresponding path program 1 times [2020-10-26 04:10:03,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:03,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522624687] [2020-10-26 04:10:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:10:03,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522624687] [2020-10-26 04:10:03,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476491842] [2020-10-26 04:10:03,508 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 04:10:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:03,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:10:03,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 04:10:03,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:03,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2020-10-26 04:10:03,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143027089] [2020-10-26 04:10:03,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:03,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:03,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:03,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:03,766 INFO L87 Difference]: Start difference. First operand 145 states and 183 transitions. Second operand 4 states. [2020-10-26 04:10:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:04,229 INFO L93 Difference]: Finished difference Result 290 states and 391 transitions. [2020-10-26 04:10:04,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:04,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-26 04:10:04,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:04,232 INFO L225 Difference]: With dead ends: 290 [2020-10-26 04:10:04,232 INFO L226 Difference]: Without dead ends: 198 [2020-10-26 04:10:04,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-26 04:10:04,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 170. [2020-10-26 04:10:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-26 04:10:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2020-10-26 04:10:04,250 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 33 [2020-10-26 04:10:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:04,251 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2020-10-26 04:10:04,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2020-10-26 04:10:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-26 04:10:04,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:04,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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 04:10:04,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:04,467 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash -665492217, now seen corresponding path program 1 times [2020-10-26 04:10:04,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:04,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834893627] [2020-10-26 04:10:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:10:04,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834893627] [2020-10-26 04:10:04,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869707812] [2020-10-26 04:10:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:04,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:10:04,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:04,804 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-26 04:10:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 04:10:05,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:05,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2020-10-26 04:10:05,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499496321] [2020-10-26 04:10:05,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:05,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:05,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:05,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:05,027 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand 4 states. [2020-10-26 04:10:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:05,497 INFO L93 Difference]: Finished difference Result 340 states and 447 transitions. [2020-10-26 04:10:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:05,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-26 04:10:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:05,499 INFO L225 Difference]: With dead ends: 340 [2020-10-26 04:10:05,499 INFO L226 Difference]: Without dead ends: 223 [2020-10-26 04:10:05,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-26 04:10:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 195. [2020-10-26 04:10:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-26 04:10:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2020-10-26 04:10:05,516 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 40 [2020-10-26 04:10:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:05,519 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2020-10-26 04:10:05,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2020-10-26 04:10:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-26 04:10:05,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:05,527 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1] [2020-10-26 04:10:05,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:05,742 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:05,743 INFO L82 PathProgramCache]: Analyzing trace with hash 973067587, now seen corresponding path program 1 times [2020-10-26 04:10:05,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:05,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503702715] [2020-10-26 04:10:05,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-26 04:10:05,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503702715] [2020-10-26 04:10:05,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:05,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:10:05,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519563180] [2020-10-26 04:10:05,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:10:05,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:05,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:10:05,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:10:05,828 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand 3 states. [2020-10-26 04:10:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:05,839 INFO L93 Difference]: Finished difference Result 232 states and 282 transitions. [2020-10-26 04:10:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:10:05,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-26 04:10:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:05,841 INFO L225 Difference]: With dead ends: 232 [2020-10-26 04:10:05,841 INFO L226 Difference]: Without dead ends: 169 [2020-10-26 04:10:05,842 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 04:10:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-26 04:10:05,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-26 04:10:05,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-26 04:10:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2020-10-26 04:10:05,848 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 47 [2020-10-26 04:10:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:05,849 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2020-10-26 04:10:05,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:10:05,849 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2020-10-26 04:10:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-26 04:10:05,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:05,851 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 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, 1] [2020-10-26 04:10:05,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 04:10:05,852 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:05,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1501188431, now seen corresponding path program 1 times [2020-10-26 04:10:05,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:05,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102477673] [2020-10-26 04:10:05,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-26 04:10:05,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102477673] [2020-10-26 04:10:05,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:05,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:10:05,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44034777] [2020-10-26 04:10:05,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:10:05,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:05,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:10:05,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:10:05,929 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand 5 states. [2020-10-26 04:10:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:06,239 INFO L93 Difference]: Finished difference Result 465 states and 573 transitions. [2020-10-26 04:10:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:10:06,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-26 04:10:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:06,243 INFO L225 Difference]: With dead ends: 465 [2020-10-26 04:10:06,243 INFO L226 Difference]: Without dead ends: 347 [2020-10-26 04:10:06,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-26 04:10:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 209. [2020-10-26 04:10:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-26 04:10:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 256 transitions. [2020-10-26 04:10:06,260 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 256 transitions. Word has length 59 [2020-10-26 04:10:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:06,260 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 256 transitions. [2020-10-26 04:10:06,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:10:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 256 transitions. [2020-10-26 04:10:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-26 04:10:06,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:06,268 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-26 04:10:06,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 04:10:06,269 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:06,270 INFO L82 PathProgramCache]: Analyzing trace with hash -451056364, now seen corresponding path program 1 times [2020-10-26 04:10:06,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:06,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950503620] [2020-10-26 04:10:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-26 04:10:06,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950503620] [2020-10-26 04:10:06,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:06,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:10:06,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840770350] [2020-10-26 04:10:06,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:06,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:06,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:06,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:06,392 INFO L87 Difference]: Start difference. First operand 209 states and 256 transitions. Second operand 4 states. [2020-10-26 04:10:06,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:06,480 INFO L93 Difference]: Finished difference Result 465 states and 569 transitions. [2020-10-26 04:10:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:06,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-26 04:10:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:06,486 INFO L225 Difference]: With dead ends: 465 [2020-10-26 04:10:06,486 INFO L226 Difference]: Without dead ends: 307 [2020-10-26 04:10:06,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:06,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-26 04:10:06,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 225. [2020-10-26 04:10:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-26 04:10:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2020-10-26 04:10:06,498 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 62 [2020-10-26 04:10:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:06,499 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2020-10-26 04:10:06,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:06,500 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2020-10-26 04:10:06,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-26 04:10:06,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:06,502 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 04:10:06,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 04:10:06,504 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:06,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1517528546, now seen corresponding path program 1 times [2020-10-26 04:10:06,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:06,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253117734] [2020-10-26 04:10:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 04:10:06,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253117734] [2020-10-26 04:10:06,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:06,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 04:10:06,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337887243] [2020-10-26 04:10:06,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:10:06,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:06,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:10:06,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:06,701 INFO L87 Difference]: Start difference. First operand 225 states and 283 transitions. Second operand 6 states. [2020-10-26 04:10:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:07,156 INFO L93 Difference]: Finished difference Result 619 states and 780 transitions. [2020-10-26 04:10:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:10:07,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-26 04:10:07,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:07,160 INFO L225 Difference]: With dead ends: 619 [2020-10-26 04:10:07,160 INFO L226 Difference]: Without dead ends: 440 [2020-10-26 04:10:07,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:10:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-26 04:10:07,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 361. [2020-10-26 04:10:07,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-26 04:10:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 453 transitions. [2020-10-26 04:10:07,180 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 453 transitions. Word has length 68 [2020-10-26 04:10:07,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:07,180 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 453 transitions. [2020-10-26 04:10:07,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:10:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 453 transitions. [2020-10-26 04:10:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-26 04:10:07,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:07,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:07,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 04:10:07,183 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2020673026, now seen corresponding path program 1 times [2020-10-26 04:10:07,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:07,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161841550] [2020-10-26 04:10:07,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-26 04:10:07,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161841550] [2020-10-26 04:10:07,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356510124] [2020-10-26 04:10:07,284 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 04:10:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:07,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:10:07,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-26 04:10:07,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:07,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2020-10-26 04:10:07,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016821874] [2020-10-26 04:10:07,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:10:07,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:07,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:10:07,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:07,403 INFO L87 Difference]: Start difference. First operand 361 states and 453 transitions. Second operand 4 states. [2020-10-26 04:10:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:07,578 INFO L93 Difference]: Finished difference Result 960 states and 1198 transitions. [2020-10-26 04:10:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:10:07,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-26 04:10:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:07,584 INFO L225 Difference]: With dead ends: 960 [2020-10-26 04:10:07,584 INFO L226 Difference]: Without dead ends: 616 [2020-10-26 04:10:07,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:10:07,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-26 04:10:07,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 496. [2020-10-26 04:10:07,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-26 04:10:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 623 transitions. [2020-10-26 04:10:07,608 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 623 transitions. Word has length 68 [2020-10-26 04:10:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:07,609 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 623 transitions. [2020-10-26 04:10:07,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:10:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 623 transitions. [2020-10-26 04:10:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-26 04:10:07,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:07,611 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 04:10:07,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:07,828 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:07,830 INFO L82 PathProgramCache]: Analyzing trace with hash 579694859, now seen corresponding path program 1 times [2020-10-26 04:10:07,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:07,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827260782] [2020-10-26 04:10:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 04:10:07,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827260782] [2020-10-26 04:10:07,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:07,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 04:10:07,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880487919] [2020-10-26 04:10:07,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:10:07,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:10:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:07,927 INFO L87 Difference]: Start difference. First operand 496 states and 623 transitions. Second operand 6 states. [2020-10-26 04:10:08,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:08,394 INFO L93 Difference]: Finished difference Result 1194 states and 1490 transitions. [2020-10-26 04:10:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:10:08,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-26 04:10:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:08,401 INFO L225 Difference]: With dead ends: 1194 [2020-10-26 04:10:08,401 INFO L226 Difference]: Without dead ends: 717 [2020-10-26 04:10:08,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:10:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-26 04:10:08,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 603. [2020-10-26 04:10:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-26 04:10:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 756 transitions. [2020-10-26 04:10:08,441 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 756 transitions. Word has length 68 [2020-10-26 04:10:08,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:08,443 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 756 transitions. [2020-10-26 04:10:08,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:10:08,443 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 756 transitions. [2020-10-26 04:10:08,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-26 04:10:08,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:08,445 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 04:10:08,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 04:10:08,446 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:08,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:08,447 INFO L82 PathProgramCache]: Analyzing trace with hash 415029660, now seen corresponding path program 1 times [2020-10-26 04:10:08,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:08,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131007209] [2020-10-26 04:10:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-26 04:10:08,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131007209] [2020-10-26 04:10:08,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:08,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 04:10:08,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407004588] [2020-10-26 04:10:08,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:10:08,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:08,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:10:08,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:08,591 INFO L87 Difference]: Start difference. First operand 603 states and 756 transitions. Second operand 7 states. [2020-10-26 04:10:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:09,258 INFO L93 Difference]: Finished difference Result 1482 states and 1841 transitions. [2020-10-26 04:10:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 04:10:09,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-26 04:10:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:09,263 INFO L225 Difference]: With dead ends: 1482 [2020-10-26 04:10:09,263 INFO L226 Difference]: Without dead ends: 825 [2020-10-26 04:10:09,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-26 04:10:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-26 04:10:09,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 717. [2020-10-26 04:10:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-10-26 04:10:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 900 transitions. [2020-10-26 04:10:09,300 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 900 transitions. Word has length 74 [2020-10-26 04:10:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:09,301 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 900 transitions. [2020-10-26 04:10:09,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:10:09,301 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 900 transitions. [2020-10-26 04:10:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-26 04:10:09,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:09,309 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:09,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 04:10:09,309 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:09,310 INFO L82 PathProgramCache]: Analyzing trace with hash -78732058, now seen corresponding path program 1 times [2020-10-26 04:10:09,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:09,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130281341] [2020-10-26 04:10:09,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:09,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130281341] [2020-10-26 04:10:09,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590234598] [2020-10-26 04:10:09,411 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 04:10:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:09,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:10:09,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:09,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:10:09,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-26 04:10:09,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183977134] [2020-10-26 04:10:09,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:10:09,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:10:09,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:10:09,507 INFO L87 Difference]: Start difference. First operand 717 states and 900 transitions. Second operand 5 states. [2020-10-26 04:10:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:09,706 INFO L93 Difference]: Finished difference Result 2016 states and 2436 transitions. [2020-10-26 04:10:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:10:09,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-10-26 04:10:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:09,717 INFO L225 Difference]: With dead ends: 2016 [2020-10-26 04:10:09,718 INFO L226 Difference]: Without dead ends: 1991 [2020-10-26 04:10:09,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-26 04:10:09,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 993. [2020-10-26 04:10:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-10-26 04:10:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1352 transitions. [2020-10-26 04:10:09,771 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1352 transitions. Word has length 74 [2020-10-26 04:10:09,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:09,772 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1352 transitions. [2020-10-26 04:10:09,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:10:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1352 transitions. [2020-10-26 04:10:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-26 04:10:09,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:09,774 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 04:10:09,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-26 04:10:09,989 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:09,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:09,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2110504499, now seen corresponding path program 1 times [2020-10-26 04:10:09,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:09,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908642197] [2020-10-26 04:10:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-26 04:10:10,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908642197] [2020-10-26 04:10:10,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:10,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 04:10:10,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455843758] [2020-10-26 04:10:10,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:10:10,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:10,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:10:10,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:10,124 INFO L87 Difference]: Start difference. First operand 993 states and 1352 transitions. Second operand 7 states. [2020-10-26 04:10:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:10,664 INFO L93 Difference]: Finished difference Result 2272 states and 3078 transitions. [2020-10-26 04:10:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 04:10:10,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-26 04:10:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:10,673 INFO L225 Difference]: With dead ends: 2272 [2020-10-26 04:10:10,673 INFO L226 Difference]: Without dead ends: 1264 [2020-10-26 04:10:10,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-26 04:10:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-26 04:10:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1141. [2020-10-26 04:10:10,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 04:10:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-26 04:10:10,736 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 74 [2020-10-26 04:10:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:10,736 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-26 04:10:10,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:10:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-26 04:10:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-26 04:10:10,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:10,739 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:10,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 04:10:10,739 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:10,740 INFO L82 PathProgramCache]: Analyzing trace with hash 220871532, now seen corresponding path program 1 times [2020-10-26 04:10:10,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:10,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921326880] [2020-10-26 04:10:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-26 04:10:10,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921326880] [2020-10-26 04:10:10,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:10,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:10:10,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340365176] [2020-10-26 04:10:10,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:10:10,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:10,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:10:10,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:10:10,873 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-26 04:10:11,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:11,320 INFO L93 Difference]: Finished difference Result 3568 states and 4858 transitions. [2020-10-26 04:10:11,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:10:11,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-26 04:10:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:11,341 INFO L225 Difference]: With dead ends: 3568 [2020-10-26 04:10:11,342 INFO L226 Difference]: Without dead ends: 3401 [2020-10-26 04:10:11,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-10-26 04:10:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 1141. [2020-10-26 04:10:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 04:10:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-26 04:10:11,425 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-26 04:10:11,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:11,425 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-26 04:10:11,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:10:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-26 04:10:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-26 04:10:11,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:11,428 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:11,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 04:10:11,429 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2020-10-26 04:10:11,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:11,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822572168] [2020-10-26 04:10:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-26 04:10:11,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822572168] [2020-10-26 04:10:11,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:11,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:10:11,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917553017] [2020-10-26 04:10:11,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 04:10:11,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:11,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:10:11,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:10:11,569 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-26 04:10:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:11,984 INFO L93 Difference]: Finished difference Result 3558 states and 4844 transitions. [2020-10-26 04:10:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:10:11,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-26 04:10:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:12,002 INFO L225 Difference]: With dead ends: 3558 [2020-10-26 04:10:12,003 INFO L226 Difference]: Without dead ends: 3384 [2020-10-26 04:10:12,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-10-26 04:10:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 1141. [2020-10-26 04:10:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 04:10:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-26 04:10:12,082 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-26 04:10:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:12,082 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-26 04:10:12,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 04:10:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-26 04:10:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-26 04:10:12,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:12,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:12,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 04:10:12,086 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:12,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1618881827, now seen corresponding path program 1 times [2020-10-26 04:10:12,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:12,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158037163] [2020-10-26 04:10:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-26 04:10:12,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158037163] [2020-10-26 04:10:12,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:12,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 04:10:12,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869912737] [2020-10-26 04:10:12,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:10:12,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:12,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:10:12,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:12,220 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-26 04:10:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:12,925 INFO L93 Difference]: Finished difference Result 4706 states and 6408 transitions. [2020-10-26 04:10:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:10:12,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-26 04:10:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:12,950 INFO L225 Difference]: With dead ends: 4706 [2020-10-26 04:10:12,951 INFO L226 Difference]: Without dead ends: 4539 [2020-10-26 04:10:12,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:10:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-10-26 04:10:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 1141. [2020-10-26 04:10:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 04:10:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-26 04:10:13,047 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-26 04:10:13,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:13,047 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-26 04:10:13,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:10:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-26 04:10:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-26 04:10:13,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:13,051 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:13,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 04:10:13,052 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:13,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:13,053 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2020-10-26 04:10:13,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:13,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425296716] [2020-10-26 04:10:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-26 04:10:13,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425296716] [2020-10-26 04:10:13,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:13,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 04:10:13,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510373009] [2020-10-26 04:10:13,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:10:13,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:13,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:10:13,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:10:13,283 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-26 04:10:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:13,964 INFO L93 Difference]: Finished difference Result 4686 states and 6381 transitions. [2020-10-26 04:10:13,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:10:13,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-26 04:10:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:13,986 INFO L225 Difference]: With dead ends: 4686 [2020-10-26 04:10:13,987 INFO L226 Difference]: Without dead ends: 4512 [2020-10-26 04:10:13,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-26 04:10:13,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2020-10-26 04:10:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 1141. [2020-10-26 04:10:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 04:10:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-26 04:10:14,075 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-26 04:10:14,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:14,075 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-26 04:10:14,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:10:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-26 04:10:14,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-26 04:10:14,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:14,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:14,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 04:10:14,078 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:14,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:14,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1508814206, now seen corresponding path program 1 times [2020-10-26 04:10:14,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:14,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743029003] [2020-10-26 04:10:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-26 04:10:14,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743029003] [2020-10-26 04:10:14,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263476095] [2020-10-26 04:10:14,203 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 04:10:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:14,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:10:14,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-26 04:10:14,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:10:14,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-26 04:10:14,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463970075] [2020-10-26 04:10:14,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 04:10:14,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:14,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 04:10:14,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 04:10:14,344 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 8 states. [2020-10-26 04:10:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:14,723 INFO L93 Difference]: Finished difference Result 3168 states and 4362 transitions. [2020-10-26 04:10:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:10:14,724 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-26 04:10:14,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:14,734 INFO L225 Difference]: With dead ends: 3168 [2020-10-26 04:10:14,734 INFO L226 Difference]: Without dead ends: 2018 [2020-10-26 04:10:14,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:10:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2020-10-26 04:10:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1911. [2020-10-26 04:10:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-10-26 04:10:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2607 transitions. [2020-10-26 04:10:14,833 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2607 transitions. Word has length 83 [2020-10-26 04:10:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:14,834 INFO L481 AbstractCegarLoop]: Abstraction has 1911 states and 2607 transitions. [2020-10-26 04:10:14,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 04:10:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2607 transitions. [2020-10-26 04:10:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-26 04:10:14,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:14,837 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:15,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:15,057 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:15,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1670983295, now seen corresponding path program 1 times [2020-10-26 04:10:15,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:15,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112692271] [2020-10-26 04:10:15,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-26 04:10:15,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112692271] [2020-10-26 04:10:15,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:15,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 04:10:15,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845594920] [2020-10-26 04:10:15,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:10:15,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:15,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:10:15,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:15,212 INFO L87 Difference]: Start difference. First operand 1911 states and 2607 transitions. Second operand 7 states. [2020-10-26 04:10:16,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:16,154 INFO L93 Difference]: Finished difference Result 4413 states and 5986 transitions. [2020-10-26 04:10:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 04:10:16,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-26 04:10:16,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:16,174 INFO L225 Difference]: With dead ends: 4413 [2020-10-26 04:10:16,174 INFO L226 Difference]: Without dead ends: 4246 [2020-10-26 04:10:16,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:10:16,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2020-10-26 04:10:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 1893. [2020-10-26 04:10:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-10-26 04:10:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2584 transitions. [2020-10-26 04:10:16,275 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2584 transitions. Word has length 85 [2020-10-26 04:10:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:16,275 INFO L481 AbstractCegarLoop]: Abstraction has 1893 states and 2584 transitions. [2020-10-26 04:10:16,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:10:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2584 transitions. [2020-10-26 04:10:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-26 04:10:16,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:16,278 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:16,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 04:10:16,279 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1447135889, now seen corresponding path program 1 times [2020-10-26 04:10:16,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:16,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949130251] [2020-10-26 04:10:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-26 04:10:16,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949130251] [2020-10-26 04:10:16,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:10:16,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 04:10:16,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965322954] [2020-10-26 04:10:16,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:10:16,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:16,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:10:16,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 04:10:16,462 INFO L87 Difference]: Start difference. First operand 1893 states and 2584 transitions. Second operand 7 states. [2020-10-26 04:10:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:17,429 INFO L93 Difference]: Finished difference Result 6724 states and 9154 transitions. [2020-10-26 04:10:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 04:10:17,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-26 04:10:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:17,460 INFO L225 Difference]: With dead ends: 6724 [2020-10-26 04:10:17,460 INFO L226 Difference]: Without dead ends: 6400 [2020-10-26 04:10:17,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:10:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2020-10-26 04:10:17,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 1885. [2020-10-26 04:10:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-10-26 04:10:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2576 transitions. [2020-10-26 04:10:17,568 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2576 transitions. Word has length 85 [2020-10-26 04:10:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:17,568 INFO L481 AbstractCegarLoop]: Abstraction has 1885 states and 2576 transitions. [2020-10-26 04:10:17,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:10:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2576 transitions. [2020-10-26 04:10:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-26 04:10:17,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:17,571 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:17,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 04:10:17,572 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:17,573 INFO L82 PathProgramCache]: Analyzing trace with hash -566259362, now seen corresponding path program 1 times [2020-10-26 04:10:17,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:17,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171483932] [2020-10-26 04:10:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-26 04:10:17,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171483932] [2020-10-26 04:10:17,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526768768] [2020-10-26 04:10:17,713 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 04:10:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 04:10:17,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-26 04:10:18,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:10:18,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-10-26 04:10:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146782384] [2020-10-26 04:10:18,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 04:10:18,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 04:10:18,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-26 04:10:18,389 INFO L87 Difference]: Start difference. First operand 1885 states and 2576 transitions. Second operand 10 states. [2020-10-26 04:10:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:20,018 INFO L93 Difference]: Finished difference Result 5246 states and 7382 transitions. [2020-10-26 04:10:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 04:10:20,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-26 04:10:20,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:20,025 INFO L225 Difference]: With dead ends: 5246 [2020-10-26 04:10:20,025 INFO L226 Difference]: Without dead ends: 3390 [2020-10-26 04:10:20,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 04:10:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2020-10-26 04:10:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2569. [2020-10-26 04:10:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-10-26 04:10:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3488 transitions. [2020-10-26 04:10:20,135 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3488 transitions. Word has length 86 [2020-10-26 04:10:20,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:20,135 INFO L481 AbstractCegarLoop]: Abstraction has 2569 states and 3488 transitions. [2020-10-26 04:10:20,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 04:10:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3488 transitions. [2020-10-26 04:10:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-26 04:10:20,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:20,138 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:20,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:20,352 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:20,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1279960591, now seen corresponding path program 1 times [2020-10-26 04:10:20,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:20,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518816617] [2020-10-26 04:10:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:20,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518816617] [2020-10-26 04:10:20,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596131991] [2020-10-26 04:10:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 04:10:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:20,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 04:10:20,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-26 04:10:20,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:20,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2020-10-26 04:10:20,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979447439] [2020-10-26 04:10:20,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 04:10:20,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:20,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 04:10:20,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:10:20,634 INFO L87 Difference]: Start difference. First operand 2569 states and 3488 transitions. Second operand 6 states. [2020-10-26 04:10:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:20,965 INFO L93 Difference]: Finished difference Result 3367 states and 4548 transitions. [2020-10-26 04:10:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 04:10:20,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-10-26 04:10:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:20,976 INFO L225 Difference]: With dead ends: 3367 [2020-10-26 04:10:20,976 INFO L226 Difference]: Without dead ends: 3167 [2020-10-26 04:10:20,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-26 04:10:20,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-26 04:10:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3140. [2020-10-26 04:10:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-10-26 04:10:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4241 transitions. [2020-10-26 04:10:21,083 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4241 transitions. Word has length 86 [2020-10-26 04:10:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:21,083 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 4241 transitions. [2020-10-26 04:10:21,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 04:10:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4241 transitions. [2020-10-26 04:10:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-26 04:10:21,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:21,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:21,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-26 04:10:21,301 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:21,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:21,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1246814763, now seen corresponding path program 1 times [2020-10-26 04:10:21,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:21,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090614601] [2020-10-26 04:10:21,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-26 04:10:21,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090614601] [2020-10-26 04:10:21,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430474837] [2020-10-26 04:10:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 04:10:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:21,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-26 04:10:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:21,632 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-26 04:10:21,846 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-26 04:10:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-26 04:10:42,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:10:42,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2020-10-26 04:10:42,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910142906] [2020-10-26 04:10:42,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 04:10:42,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:42,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 04:10:42,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-26 04:10:42,900 INFO L87 Difference]: Start difference. First operand 3140 states and 4241 transitions. Second operand 12 states. [2020-10-26 04:10:43,270 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2020-10-26 04:10:43,518 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 119 [2020-10-26 04:10:44,425 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-26 04:10:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:47,228 INFO L93 Difference]: Finished difference Result 6038 states and 8105 transitions. [2020-10-26 04:10:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 04:10:47,229 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-26 04:10:47,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:47,242 INFO L225 Difference]: With dead ends: 6038 [2020-10-26 04:10:47,242 INFO L226 Difference]: Without dead ends: 5497 [2020-10-26 04:10:47,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-10-26 04:10:47,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-10-26 04:10:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 4100. [2020-10-26 04:10:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-26 04:10:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5518 transitions. [2020-10-26 04:10:47,436 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5518 transitions. Word has length 89 [2020-10-26 04:10:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:47,437 INFO L481 AbstractCegarLoop]: Abstraction has 4100 states and 5518 transitions. [2020-10-26 04:10:47,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 04:10:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5518 transitions. [2020-10-26 04:10:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-26 04:10:47,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:47,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:47,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-10-26 04:10:47,658 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash 435136947, now seen corresponding path program 1 times [2020-10-26 04:10:47,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:47,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833077614] [2020-10-26 04:10:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:47,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833077614] [2020-10-26 04:10:47,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351538016] [2020-10-26 04:10:47,816 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 04:10:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:47,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 04:10:47,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:48,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:10:48,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-10-26 04:10:48,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877351011] [2020-10-26 04:10:48,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 04:10:48,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:48,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 04:10:48,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 04:10:48,040 INFO L87 Difference]: Start difference. First operand 4100 states and 5518 transitions. Second operand 12 states. [2020-10-26 04:10:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:52,998 INFO L93 Difference]: Finished difference Result 17412 states and 21999 transitions. [2020-10-26 04:10:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-26 04:10:52,999 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-26 04:10:52,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:53,031 INFO L225 Difference]: With dead ends: 17412 [2020-10-26 04:10:53,032 INFO L226 Difference]: Without dead ends: 14178 [2020-10-26 04:10:53,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-10-26 04:10:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2020-10-26 04:10:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 5702. [2020-10-26 04:10:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5702 states. [2020-10-26 04:10:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7690 transitions. [2020-10-26 04:10:53,426 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7690 transitions. Word has length 89 [2020-10-26 04:10:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:53,426 INFO L481 AbstractCegarLoop]: Abstraction has 5702 states and 7690 transitions. [2020-10-26 04:10:53,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 04:10:53,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7690 transitions. [2020-10-26 04:10:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-26 04:10:53,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:53,435 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:10:53,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-26 04:10:53,650 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:53,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:53,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1767062975, now seen corresponding path program 1 times [2020-10-26 04:10:53,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:53,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681613451] [2020-10-26 04:10:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 04:10:53,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681613451] [2020-10-26 04:10:53,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112153397] [2020-10-26 04:10:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:10:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:10:53,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-26 04:10:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:10:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-26 04:10:54,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:10:54,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2020-10-26 04:10:54,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254157920] [2020-10-26 04:10:54,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 04:10:54,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:10:54,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 04:10:54,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-26 04:10:54,020 INFO L87 Difference]: Start difference. First operand 5702 states and 7690 transitions. Second operand 7 states. [2020-10-26 04:10:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:10:54,402 INFO L93 Difference]: Finished difference Result 6725 states and 9036 transitions. [2020-10-26 04:10:54,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 04:10:54,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-26 04:10:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:10:54,413 INFO L225 Difference]: With dead ends: 6725 [2020-10-26 04:10:54,414 INFO L226 Difference]: Without dead ends: 6089 [2020-10-26 04:10:54,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-26 04:10:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2020-10-26 04:10:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5706. [2020-10-26 04:10:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5706 states. [2020-10-26 04:10:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 7694 transitions. [2020-10-26 04:10:54,729 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 7694 transitions. Word has length 89 [2020-10-26 04:10:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:10:54,730 INFO L481 AbstractCegarLoop]: Abstraction has 5706 states and 7694 transitions. [2020-10-26 04:10:54,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 04:10:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 7694 transitions. [2020-10-26 04:10:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-26 04:10:54,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:10:54,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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 04:10:54,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-26 04:10:54,951 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:10:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:10:54,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1585272271, now seen corresponding path program 1 times [2020-10-26 04:10:54,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:10:54,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820725576] [2020-10-26 04:10:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:10:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:10:55,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:10:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:10:55,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:10:55,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:10:55,116 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:10:55,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-26 04:10:55,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:10:55 BoogieIcfgContainer [2020-10-26 04:10:55,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:10:55,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:10:55,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:10:55,255 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:10:55,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:10:00" (3/4) ... [2020-10-26 04:10:55,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:10:55,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:10:55,263 INFO L168 Benchmark]: Toolchain (without parser) took 55917.92 ms. Allocated memory was 41.9 MB in the beginning and 589.3 MB in the end (delta: 547.4 MB). Free memory was 17.6 MB in the beginning and 466.1 MB in the end (delta: -448.5 MB). Peak memory consumption was 100.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,264 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:10:55,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.02 ms. Allocated memory is still 50.3 MB. Free memory was 34.1 MB in the beginning and 22.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.50 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 33.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,265 INFO L168 Benchmark]: Boogie Preprocessor took 34.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 31.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,266 INFO L168 Benchmark]: RCFGBuilder took 733.54 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 28.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,266 INFO L168 Benchmark]: TraceAbstraction took 54652.18 ms. Allocated memory was 50.3 MB in the beginning and 589.3 MB in the end (delta: 539.0 MB). Free memory was 28.1 MB in the beginning and 467.1 MB in the end (delta: -439.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:10:55,267 INFO L168 Benchmark]: Witness Printer took 7.52 ms. Allocated memory is still 589.3 MB. Free memory was 467.1 MB in the beginning and 466.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:10:55,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.02 ms. Allocated memory is still 50.3 MB. Free memory was 34.1 MB in the beginning and 22.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.50 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 33.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 31.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 733.54 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 28.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54652.18 ms. Allocated memory was 50.3 MB in the beginning and 589.3 MB in the end (delta: 539.0 MB). Free memory was 28.1 MB in the beginning and 467.1 MB in the end (delta: -439.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.52 ms. Allocated memory is still 589.3 MB. Free memory was 467.1 MB in the beginning and 466.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] a = __VERIFIER_nondet_uint() [L119] b = __VERIFIER_nondet_uint() [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND TRUE a3 == (unsigned char)0 [L52] EXPR na - 1 [L52] na = na - 1 [L53] COND TRUE a2 == (unsigned char)0 [L54] EXPR na - 1 [L54] na = na - 1 [L55] COND TRUE a1 == (unsigned char)0 [L56] EXPR na - 1 [L56] na = na - 1 [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)254)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 54.4s, OverallIterations: 29, TraceHistogramMax: 4, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 6706 SDslu, 10501 SDs, 0 SdLazy, 8612 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1033 GetRequests, 784 SyntacticMatches, 33 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5706occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 28 MinimizatonAttempts, 31331 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 2625 NumberOfCodeBlocks, 2625 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2495 ConstructedInterpolants, 36 QuantifiedInterpolants, 1769943 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1851 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 39 InterpolantComputations, 23 PerfectInterpolantSequences, 2276/2396 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...