./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/loop-zilu/benchmark24_conjunctive.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 2c3b9571ba66fa4feec822ae5ad361f0264abe6d66c7b617817aa135932aee0a --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:04:05,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:04:05,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:04:05,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:04:05,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:04:05,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:04:05,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:04:05,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:04:05,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:04:05,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:04:05,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:04:05,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:04:05,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:04:05,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:04:05,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:04:05,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:04:05,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:04:05,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:04:05,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:04:05,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:04:05,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:04:05,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:04:05,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:04:05,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:04:05,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:04:05,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:04:05,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:04:05,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:04:05,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:04:05,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:04:05,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:04:05,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:04:05,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:04:05,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:04:05,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:04:05,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:04:05,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:04:05,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:04:05,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:04:05,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:04:05,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:04:05,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 23:04:05,760 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:04:05,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:04:05,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:04:05,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:04:05,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:04:05,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:04:05,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:04:05,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:04:05,762 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:04:05,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:04:05,763 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:04:05,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:04:05,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:04:05,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:04:05,764 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:04:05,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:04:05,765 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:04:05,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:04:05,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:04:05,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:04:05,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:04:05,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:04:05,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:04:05,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:04:05,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:04:05,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:04:05,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:04:05,767 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c3b9571ba66fa4feec822ae5ad361f0264abe6d66c7b617817aa135932aee0a [2023-02-18 23:04:06,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:04:06,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:04:06,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:04:06,032 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:04:06,033 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:04:06,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2023-02-18 23:04:07,202 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:04:07,391 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:04:07,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2023-02-18 23:04:07,396 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d72cf7/4f1cc2e7bc9a4ba8b466efc7333b1bcf/FLAGca5fc3d46 [2023-02-18 23:04:07,413 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d72cf7/4f1cc2e7bc9a4ba8b466efc7333b1bcf [2023-02-18 23:04:07,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:04:07,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:04:07,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:04:07,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:04:07,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:04:07,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cdff4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07, skipping insertion in model container [2023-02-18 23:04:07,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:04:07,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:04:07,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i[873,886] [2023-02-18 23:04:07,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:04:07,589 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:04:07,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i[873,886] [2023-02-18 23:04:07,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:04:07,637 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:04:07,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07 WrapperNode [2023-02-18 23:04:07,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:04:07,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:04:07,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:04:07,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:04:07,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,665 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-02-18 23:04:07,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:04:07,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:04:07,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:04:07,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:04:07,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:04:07,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:04:07,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:04:07,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:04:07,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (1/1) ... [2023-02-18 23:04:07,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:04:07,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:07,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 23:04:07,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 23:04:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:04:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:04:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:04:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:04:07,809 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:04:07,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:04:07,953 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:04:07,958 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:04:07,958 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:04:07,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:04:07 BoogieIcfgContainer [2023-02-18 23:04:07,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:04:07,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:04:07,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:04:07,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:04:07,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:04:07" (1/3) ... [2023-02-18 23:04:07,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6307a6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:04:07, skipping insertion in model container [2023-02-18 23:04:07,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:04:07" (2/3) ... [2023-02-18 23:04:07,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6307a6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:04:07, skipping insertion in model container [2023-02-18 23:04:07,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:04:07" (3/3) ... [2023-02-18 23:04:07,971 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark24_conjunctive.i [2023-02-18 23:04:07,989 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:04:07,989 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-18 23:04:08,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:04:08,049 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16914292, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:04:08,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-18 23:04:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:04:08,059 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:04:08,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,067 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-18 23:04:08,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652939309] [2023-02-18 23:04:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652939309] [2023-02-18 23:04:08,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652939309] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:04:08,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562354769] [2023-02-18 23:04:08,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:04:08,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:04:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:04:08,344 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,393 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-02-18 23:04:08,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:04:08,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:04:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,403 INFO L225 Difference]: With dead ends: 54 [2023-02-18 23:04:08,403 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 23:04:08,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:04:08,409 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 54 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 23:04:08,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2023-02-18 23:04:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-18 23:04:08,438 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-18 23:04:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,439 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-18 23:04:08,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-18 23:04:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:04:08,440 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:04:08,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-18 23:04:08,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864549775] [2023-02-18 23:04:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864549775] [2023-02-18 23:04:08,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864549775] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:04:08,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538056084] [2023-02-18 23:04:08,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:04:08,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:04:08,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:04:08,486 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,519 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-18 23:04:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:04:08,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:04:08,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,520 INFO L225 Difference]: With dead ends: 23 [2023-02-18 23:04:08,520 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 23:04:08,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:04:08,522 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 23:04:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 23:04:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-18 23:04:08,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2023-02-18 23:04:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,527 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-18 23:04:08,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-18 23:04:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:04:08,528 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:04:08,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2023-02-18 23:04:08,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807124753] [2023-02-18 23:04:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807124753] [2023-02-18 23:04:08,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807124753] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:04:08,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801889887] [2023-02-18 23:04:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:04:08,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:04:08,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:04:08,585 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,639 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2023-02-18 23:04:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:04:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:04:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,641 INFO L225 Difference]: With dead ends: 29 [2023-02-18 23:04:08,641 INFO L226 Difference]: Without dead ends: 28 [2023-02-18 23:04:08,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:04:08,645 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-18 23:04:08,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2023-02-18 23:04:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-18 23:04:08,655 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2023-02-18 23:04:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,655 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-18 23:04:08,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-18 23:04:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:04:08,657 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:04:08,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-18 23:04:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952532857] [2023-02-18 23:04:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952532857] [2023-02-18 23:04:08,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952532857] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:04:08,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068688395] [2023-02-18 23:04:08,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:04:08,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:04:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:04:08,707 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,715 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-18 23:04:08,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:04:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:04:08,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,716 INFO L225 Difference]: With dead ends: 23 [2023-02-18 23:04:08,717 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 23:04:08,717 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:04:08,718 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 23:04:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 23:04:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-18 23:04:08,723 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2023-02-18 23:04:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,723 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-18 23:04:08,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-18 23:04:08,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:04:08,725 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:04:08,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1806979220, now seen corresponding path program 1 times [2023-02-18 23:04:08,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509980360] [2023-02-18 23:04:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509980360] [2023-02-18 23:04:08,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509980360] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:04:08,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386277471] [2023-02-18 23:04:08,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:04:08,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:04:08,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:04:08,761 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,777 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2023-02-18 23:04:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:04:08,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:04:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,778 INFO L225 Difference]: With dead ends: 22 [2023-02-18 23:04:08,779 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 23:04:08,779 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:04:08,780 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 23:04:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-18 23:04:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-02-18 23:04:08,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2023-02-18 23:04:08,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-02-18 23:04:08,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,785 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-02-18 23:04:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:04:08,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:04:08,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-18 23:04:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682496002] [2023-02-18 23:04:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682496002] [2023-02-18 23:04:08,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682496002] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:04:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566775788] [2023-02-18 23:04:08,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:04:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:04:08,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:04:08,831 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,849 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2023-02-18 23:04:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:04:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:04:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,871 INFO L225 Difference]: With dead ends: 28 [2023-02-18 23:04:08,873 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 23:04:08,874 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:04:08,875 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 23:04:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-02-18 23:04:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-02-18 23:04:08,888 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2023-02-18 23:04:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,888 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-02-18 23:04:08,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-02-18 23:04:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:04:08,889 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:04:08,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,893 INFO L85 PathProgramCache]: Analyzing trace with hash 181781037, now seen corresponding path program 1 times [2023-02-18 23:04:08,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168518412] [2023-02-18 23:04:08,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:08,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:08,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168518412] [2023-02-18 23:04:08,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168518412] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:04:08,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:04:08,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:04:08,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111281110] [2023-02-18 23:04:08,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:04:08,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:04:08,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:08,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:04:08,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:04:08,936 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:08,942 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2023-02-18 23:04:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:04:08,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:04:08,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:08,943 INFO L225 Difference]: With dead ends: 24 [2023-02-18 23:04:08,943 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 23:04:08,944 INFO L412 NwaCegarLoop]: 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 [2023-02-18 23:04:08,944 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:08,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:08,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 23:04:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-18 23:04:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-02-18 23:04:08,948 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2023-02-18 23:04:08,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:08,948 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-02-18 23:04:08,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-02-18 23:04:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:04:08,949 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:08,949 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:08,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 23:04:08,950 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2023-02-18 23:04:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:08,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464439524] [2023-02-18 23:04:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:08,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:09,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464439524] [2023-02-18 23:04:09,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464439524] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:09,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837804686] [2023-02-18 23:04:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:09,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:09,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:09,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:09,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:04:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:09,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:04:09,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837804686] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:09,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:09,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-02-18 23:04:09,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855560402] [2023-02-18 23:04:09,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:09,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 23:04:09,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 23:04:09,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:04:09,161 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:09,289 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2023-02-18 23:04:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 23:04:09,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 23:04:09,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:09,291 INFO L225 Difference]: With dead ends: 41 [2023-02-18 23:04:09,291 INFO L226 Difference]: Without dead ends: 39 [2023-02-18 23:04:09,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-02-18 23:04:09,292 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:09,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 30 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:04:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-18 23:04:09,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-18 23:04:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-02-18 23:04:09,297 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 10 [2023-02-18 23:04:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:09,298 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-02-18 23:04:09,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-02-18 23:04:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:04:09,299 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:09,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:09,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:09,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:09,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2023-02-18 23:04:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:09,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068980053] [2023-02-18 23:04:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:09,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:09,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068980053] [2023-02-18 23:04:09,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068980053] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:09,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877391499] [2023-02-18 23:04:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:09,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:09,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:09,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:09,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:04:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:09,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:04:09,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:09,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877391499] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:09,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:09,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-02-18 23:04:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738894507] [2023-02-18 23:04:09,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:09,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 23:04:09,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:09,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 23:04:09,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-02-18 23:04:09,738 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:09,849 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-02-18 23:04:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 23:04:09,850 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:04:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:09,850 INFO L225 Difference]: With dead ends: 37 [2023-02-18 23:04:09,850 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 23:04:09,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-02-18 23:04:09,853 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:09,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 26 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:04:09,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 23:04:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-02-18 23:04:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-02-18 23:04:09,861 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2023-02-18 23:04:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:09,862 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-02-18 23:04:09,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-02-18 23:04:09,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 23:04:09,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:09,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 23:04:09,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:10,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-02-18 23:04:10,068 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:10,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-18 23:04:10,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:10,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529905817] [2023-02-18 23:04:10,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:10,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529905817] [2023-02-18 23:04:10,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529905817] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:10,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061626254] [2023-02-18 23:04:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:10,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:10,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:10,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:10,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:04:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:10,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:04:10,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:10,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061626254] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:10,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:10,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 23:04:10,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160460395] [2023-02-18 23:04:10,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:10,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:04:10,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:10,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:04:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:04:10,166 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:10,201 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2023-02-18 23:04:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:04:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-18 23:04:10,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:10,203 INFO L225 Difference]: With dead ends: 41 [2023-02-18 23:04:10,204 INFO L226 Difference]: Without dead ends: 40 [2023-02-18 23:04:10,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:04:10,207 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:10,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-18 23:04:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2023-02-18 23:04:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-18 23:04:10,214 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2023-02-18 23:04:10,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:10,215 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-18 23:04:10,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-18 23:04:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:04:10,220 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:10,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 23:04:10,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-18 23:04:10,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:10,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash 487275762, now seen corresponding path program 1 times [2023-02-18 23:04:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:10,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720873087] [2023-02-18 23:04:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:10,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:10,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720873087] [2023-02-18 23:04:10,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720873087] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:10,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809016073] [2023-02-18 23:04:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:10,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:10,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:10,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:10,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:04:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:10,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 23:04:10,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:10,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809016073] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:10,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:10,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-02-18 23:04:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455235649] [2023-02-18 23:04:10,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:10,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-18 23:04:10,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:10,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-18 23:04:10,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-02-18 23:04:10,695 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:10,801 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-02-18 23:04:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 23:04:10,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 23:04:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:10,803 INFO L225 Difference]: With dead ends: 35 [2023-02-18 23:04:10,803 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 23:04:10,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2023-02-18 23:04:10,804 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 46 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:10,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 13 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:04:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 23:04:10,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-18 23:04:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-18 23:04:10,807 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2023-02-18 23:04:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:10,808 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-18 23:04:10,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-18 23:04:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 23:04:10,808 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:10,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:10,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:11,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:11,013 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:11,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:11,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2023-02-18 23:04:11,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:11,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904360312] [2023-02-18 23:04:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:11,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:11,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904360312] [2023-02-18 23:04:11,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904360312] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962764445] [2023-02-18 23:04:11,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:04:11,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:11,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:11,122 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:11,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:04:11,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:04:11,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:11,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 23:04:11,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:11,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:11,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962764445] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:11,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:11,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2023-02-18 23:04:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905532502] [2023-02-18 23:04:11,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:11,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-18 23:04:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-18 23:04:11,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2023-02-18 23:04:11,465 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:11,734 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2023-02-18 23:04:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-18 23:04:11,735 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-18 23:04:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:11,735 INFO L225 Difference]: With dead ends: 50 [2023-02-18 23:04:11,736 INFO L226 Difference]: Without dead ends: 45 [2023-02-18 23:04:11,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=447, Invalid=1359, Unknown=0, NotChecked=0, Total=1806 [2023-02-18 23:04:11,737 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 62 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:11,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 18 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:04:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-18 23:04:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-02-18 23:04:11,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2023-02-18 23:04:11,745 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2023-02-18 23:04:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:11,745 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2023-02-18 23:04:11,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2023-02-18 23:04:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 23:04:11,746 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:11,747 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-18 23:04:11,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 23:04:11,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-18 23:04:11,955 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-18 23:04:11,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:11,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784671626] [2023-02-18 23:04:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:11,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:12,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:12,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784671626] [2023-02-18 23:04:12,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784671626] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:12,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61369801] [2023-02-18 23:04:12,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:04:12,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:12,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:12,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:04:12,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:04:12,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:12,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:04:12,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:12,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:12,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61369801] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:12,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:12,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:04:12,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848697491] [2023-02-18 23:04:12,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:12,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:04:12,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:04:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:04:12,105 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:12,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:12,147 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2023-02-18 23:04:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 23:04:12,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-18 23:04:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:12,148 INFO L225 Difference]: With dead ends: 72 [2023-02-18 23:04:12,148 INFO L226 Difference]: Without dead ends: 71 [2023-02-18 23:04:12,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:04:12,149 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:12,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:04:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-18 23:04:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2023-02-18 23:04:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2023-02-18 23:04:12,154 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 28 [2023-02-18 23:04:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:12,154 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2023-02-18 23:04:12,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2023-02-18 23:04:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-18 23:04:12,155 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:12,155 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:12,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 23:04:12,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:12,357 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2023-02-18 23:04:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:12,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791141867] [2023-02-18 23:04:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:12,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:12,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791141867] [2023-02-18 23:04:12,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791141867] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:12,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511945112] [2023-02-18 23:04:12,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:04:12,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:12,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:12,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:12,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:04:12,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-18 23:04:12,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:12,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 23:04:12,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:12,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:13,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511945112] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:13,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:13,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 24] total 63 [2023-02-18 23:04:13,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664087076] [2023-02-18 23:04:13,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:13,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-18 23:04:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-18 23:04:13,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=805, Invalid=3227, Unknown=0, NotChecked=0, Total=4032 [2023-02-18 23:04:13,530 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:14,623 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-18 23:04:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-18 23:04:14,624 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-02-18 23:04:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:14,625 INFO L225 Difference]: With dead ends: 92 [2023-02-18 23:04:14,625 INFO L226 Difference]: Without dead ends: 87 [2023-02-18 23:04:14,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3324 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1829, Invalid=6361, Unknown=0, NotChecked=0, Total=8190 [2023-02-18 23:04:14,628 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 151 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:14,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 34 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 23:04:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-18 23:04:14,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2023-02-18 23:04:14,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2023-02-18 23:04:14,634 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 41 [2023-02-18 23:04:14,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:14,634 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2023-02-18 23:04:14,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2023-02-18 23:04:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-18 23:04:14,636 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:14,644 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2023-02-18 23:04:14,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:14,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:14,859 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 3 times [2023-02-18 23:04:14,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:14,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668502788] [2023-02-18 23:04:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:14,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:15,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668502788] [2023-02-18 23:04:15,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668502788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:15,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361531826] [2023-02-18 23:04:15,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:04:15,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:15,070 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:15,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:04:15,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:04:15,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:15,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:04:15,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:15,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:15,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361531826] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:15,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:15,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 23:04:15,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914406782] [2023-02-18 23:04:15,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:15,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:04:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:15,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:04:15,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:04:15,332 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:15,419 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2023-02-18 23:04:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 23:04:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-02-18 23:04:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:15,423 INFO L225 Difference]: With dead ends: 144 [2023-02-18 23:04:15,423 INFO L226 Difference]: Without dead ends: 143 [2023-02-18 23:04:15,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 93 SyntacticMatches, 11 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:04:15,425 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:15,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 79 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:04:15,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-02-18 23:04:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 122. [2023-02-18 23:04:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.075) internal successors, (129), 121 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2023-02-18 23:04:15,435 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 58 [2023-02-18 23:04:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:15,435 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2023-02-18 23:04:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2023-02-18 23:04:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-18 23:04:15,436 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:15,437 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:15,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:15,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-18 23:04:15,642 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:15,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:15,643 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2023-02-18 23:04:15,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:15,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125438564] [2023-02-18 23:04:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:15,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:16,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:16,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125438564] [2023-02-18 23:04:16,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125438564] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:16,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636704698] [2023-02-18 23:04:16,432 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:04:16,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:16,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:16,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:16,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:04:16,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:04:16,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:16,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-18 23:04:16,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:17,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:19,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636704698] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:19,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:19,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 48, 48] total 127 [2023-02-18 23:04:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860801346] [2023-02-18 23:04:19,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:19,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-18 23:04:19,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:19,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-18 23:04:19,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2961, Invalid=13295, Unknown=0, NotChecked=0, Total=16256 [2023-02-18 23:04:19,366 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:23,471 INFO L93 Difference]: Finished difference Result 176 states and 191 transitions. [2023-02-18 23:04:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-02-18 23:04:23,471 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-02-18 23:04:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:23,472 INFO L225 Difference]: With dead ends: 176 [2023-02-18 23:04:23,472 INFO L226 Difference]: Without dead ends: 171 [2023-02-18 23:04:23,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 75 SyntacticMatches, 7 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14878 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=7329, Invalid=27453, Unknown=0, NotChecked=0, Total=34782 [2023-02-18 23:04:23,478 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 410 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:23,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 60 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-18 23:04:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-02-18 23:04:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 163. [2023-02-18 23:04:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.062111801242236) internal successors, (171), 162 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 171 transitions. [2023-02-18 23:04:23,488 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 171 transitions. Word has length 81 [2023-02-18 23:04:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:23,488 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 171 transitions. [2023-02-18 23:04:23,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 171 transitions. [2023-02-18 23:04:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-02-18 23:04:23,490 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:23,490 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2023-02-18 23:04:23,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:23,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 23:04:23,695 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:23,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 4 times [2023-02-18 23:04:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:23,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985326912] [2023-02-18 23:04:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:23,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985326912] [2023-02-18 23:04:24,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985326912] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721458378] [2023-02-18 23:04:24,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:04:24,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:24,113 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:24,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:04:24,181 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:04:24,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:24,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:04:24,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:24,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:25,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721458378] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:25,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:25,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 23:04:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739736698] [2023-02-18 23:04:25,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:25,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:04:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:25,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:04:25,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:04:25,002 INFO L87 Difference]: Start difference. First operand 163 states and 171 transitions. Second operand has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:25,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:25,188 INFO L93 Difference]: Finished difference Result 288 states and 311 transitions. [2023-02-18 23:04:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 23:04:25,190 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-02-18 23:04:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:25,191 INFO L225 Difference]: With dead ends: 288 [2023-02-18 23:04:25,191 INFO L226 Difference]: Without dead ends: 287 [2023-02-18 23:04:25,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 189 SyntacticMatches, 23 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:04:25,192 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 111 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:25,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 139 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:04:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-02-18 23:04:25,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2023-02-18 23:04:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 1.0708333333333333) internal successors, (257), 241 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 257 transitions. [2023-02-18 23:04:25,201 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 257 transitions. Word has length 118 [2023-02-18 23:04:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:25,201 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 257 transitions. [2023-02-18 23:04:25,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 257 transitions. [2023-02-18 23:04:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-18 23:04:25,203 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:25,203 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2023-02-18 23:04:25,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 23:04:25,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 23:04:25,408 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2023-02-18 23:04:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:25,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403309274] [2023-02-18 23:04:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:04:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:04:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403309274] [2023-02-18 23:04:27,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403309274] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:04:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215802457] [2023-02-18 23:04:27,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:04:27,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:04:27,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:04:27,997 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:04:27,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 23:04:28,084 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 23:04:28,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:04:28,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-18 23:04:28,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:31,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:04:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:38,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215802457] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:04:38,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:04:38,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 96, 96] total 255 [2023-02-18 23:04:38,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409766443] [2023-02-18 23:04:38,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:04:38,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-18 23:04:38,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:04:38,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-18 23:04:38,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11305, Invalid=53975, Unknown=0, NotChecked=0, Total=65280 [2023-02-18 23:04:38,039 INFO L87 Difference]: Start difference. First operand 242 states and 257 transitions. Second operand has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:04:58,848 INFO L93 Difference]: Finished difference Result 344 states and 375 transitions. [2023-02-18 23:04:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2023-02-18 23:04:58,849 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-02-18 23:04:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:04:58,850 INFO L225 Difference]: With dead ends: 344 [2023-02-18 23:04:58,850 INFO L226 Difference]: Without dead ends: 339 [2023-02-18 23:04:58,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 149 SyntacticMatches, 13 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62853 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=29273, Invalid=113989, Unknown=0, NotChecked=0, Total=143262 [2023-02-18 23:04:58,860 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1591 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9848 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 9849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:04:58,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 115 Invalid, 9849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9848 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-02-18 23:04:58,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-02-18 23:04:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2023-02-18 23:04:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.0560747663551402) internal successors, (339), 322 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2023-02-18 23:04:58,875 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 161 [2023-02-18 23:04:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:04:58,876 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2023-02-18 23:04:58,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:04:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2023-02-18 23:04:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-18 23:04:58,878 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:04:58,879 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2023-02-18 23:04:58,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-18 23:04:59,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 23:04:59,084 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:04:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:04:59,084 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 5 times [2023-02-18 23:04:59,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:04:59,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521009509] [2023-02-18 23:04:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:04:59,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:04:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:05:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:00,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:05:00,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521009509] [2023-02-18 23:05:00,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521009509] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:05:00,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498216451] [2023-02-18 23:05:00,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:05:00,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:05:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:05:00,567 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:05:00,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 23:05:00,698 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:05:00,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:05:00,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:05:00,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:05:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:01,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:05:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:03,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498216451] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:05:03,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:05:03,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 23:05:03,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396836516] [2023-02-18 23:05:03,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:05:03,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 23:05:03,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:05:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 23:05:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:05:03,549 INFO L87 Difference]: Start difference. First operand 323 states and 339 transitions. Second operand has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:05:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:05:03,906 INFO L93 Difference]: Finished difference Result 576 states and 623 transitions. [2023-02-18 23:05:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 23:05:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-02-18 23:05:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:05:03,908 INFO L225 Difference]: With dead ends: 576 [2023-02-18 23:05:03,908 INFO L226 Difference]: Without dead ends: 575 [2023-02-18 23:05:03,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 381 SyntacticMatches, 47 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:05:03,910 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 243 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:05:03,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 273 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:05:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-02-18 23:05:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 482. [2023-02-18 23:05:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 480 states have (on average 1.06875) internal successors, (513), 481 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:05:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 513 transitions. [2023-02-18 23:05:03,933 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 513 transitions. Word has length 238 [2023-02-18 23:05:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:05:03,934 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 513 transitions. [2023-02-18 23:05:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:05:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 513 transitions. [2023-02-18 23:05:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-18 23:05:03,938 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:05:03,938 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2023-02-18 23:05:03,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 23:05:04,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:05:04,141 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:05:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:05:04,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2023-02-18 23:05:04,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:05:04,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426426963] [2023-02-18 23:05:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:05:04,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:05:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:05:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:14,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:05:14,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426426963] [2023-02-18 23:05:14,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426426963] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:05:14,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755202728] [2023-02-18 23:05:14,241 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:05:14,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:05:14,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:05:14,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:05:14,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 23:05:14,396 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-18 23:05:14,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:05:14,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 193 conjunts are in the unsatisfiable core [2023-02-18 23:05:14,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:05:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:26,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:05:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:52,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755202728] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:05:52,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:05:52,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 192, 192] total 511 [2023-02-18 23:05:52,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653580830] [2023-02-18 23:05:52,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:05:52,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2023-02-18 23:05:52,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:05:52,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2023-02-18 23:05:52,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44121, Invalid=217511, Unknown=0, NotChecked=0, Total=261632 [2023-02-18 23:05:52,349 INFO L87 Difference]: Start difference. First operand 482 states and 513 transitions. Second operand has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:56,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:07:56,834 INFO L93 Difference]: Finished difference Result 680 states and 743 transitions. [2023-02-18 23:07:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2023-02-18 23:07:56,835 INFO L78 Accepts]: Start accepts. Automaton has has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2023-02-18 23:07:56,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:07:56,837 INFO L225 Difference]: With dead ends: 680 [2023-02-18 23:07:56,837 INFO L226 Difference]: Without dead ends: 675 [2023-02-18 23:07:56,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 289 SyntacticMatches, 33 SemanticMatches, 761 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258355 ImplicationChecksByTransitivity, 152.9s TimeCoverageRelationStatistics Valid=116937, Invalid=464469, Unknown=0, NotChecked=0, Total=581406 [2023-02-18 23:07:56,866 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5934 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 35969 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5934 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 35970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:07:56,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5934 Valid, 220 Invalid, 35970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 35969 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2023-02-18 23:07:56,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-02-18 23:07:56,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 643. [2023-02-18 23:07:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 641 states have (on average 1.0530421216848673) internal successors, (675), 642 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 675 transitions. [2023-02-18 23:07:56,909 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 675 transitions. Word has length 321 [2023-02-18 23:07:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:07:56,909 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 675 transitions. [2023-02-18 23:07:56,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 675 transitions. [2023-02-18 23:07:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-02-18 23:07:56,916 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:07:56,917 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1] [2023-02-18 23:07:56,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 23:07:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-02-18 23:07:57,123 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:07:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:07:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1421856239, now seen corresponding path program 6 times [2023-02-18 23:07:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:07:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343670701] [2023-02-18 23:07:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:07:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:07:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:08:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:02,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:08:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343670701] [2023-02-18 23:08:02,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343670701] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:08:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940341050] [2023-02-18 23:08:02,259 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:08:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:08:02,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:08:02,261 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:08:02,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 23:08:02,501 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:08:02,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:08:02,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:08:02,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:08:05,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:05,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:08:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:13,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940341050] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:08:13,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:08:13,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 23:08:13,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430988262] [2023-02-18 23:08:13,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:08:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 23:08:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:08:13,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 23:08:13,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:08:13,939 INFO L87 Difference]: Start difference. First operand 643 states and 675 transitions. Second operand has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:15,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:08:15,295 INFO L93 Difference]: Finished difference Result 1152 states and 1247 transitions. [2023-02-18 23:08:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 23:08:15,296 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 478 [2023-02-18 23:08:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:08:15,300 INFO L225 Difference]: With dead ends: 1152 [2023-02-18 23:08:15,300 INFO L226 Difference]: Without dead ends: 1151 [2023-02-18 23:08:15,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 765 SyntacticMatches, 95 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4465 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:08:15,304 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 624 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:08:15,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 531 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:08:15,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-02-18 23:08:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 962. [2023-02-18 23:08:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 960 states have (on average 1.0677083333333333) internal successors, (1025), 961 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1025 transitions. [2023-02-18 23:08:15,354 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1025 transitions. Word has length 478 [2023-02-18 23:08:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:08:15,354 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1025 transitions. [2023-02-18 23:08:15,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1025 transitions. [2023-02-18 23:08:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-02-18 23:08:15,366 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:08:15,367 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1] [2023-02-18 23:08:15,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 23:08:15,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:08:15,573 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:08:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:08:15,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1421124545, now seen corresponding path program 7 times [2023-02-18 23:08:15,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:08:15,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412159809] [2023-02-18 23:08:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:08:15,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:08:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:08:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:58,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:08:58,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412159809] [2023-02-18 23:08:58,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412159809] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:08:58,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008945416] [2023-02-18 23:08:58,933 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:08:58,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:08:58,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:08:58,934 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:08:58,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 23:08:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:08:59,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 385 conjunts are in the unsatisfiable core [2023-02-18 23:08:59,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:09:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:09:47,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:11:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:11:33,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008945416] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:11:33,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:11:33,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 384, 384] total 1023 [2023-02-18 23:11:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938636578] [2023-02-18 23:11:33,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:11:33,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1024 states [2023-02-18 23:11:33,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:11:33,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1024 interpolants. [2023-02-18 23:11:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174265, Invalid=873287, Unknown=0, NotChecked=0, Total=1047552 [2023-02-18 23:11:33,865 INFO L87 Difference]: Start difference. First operand 962 states and 1025 transitions. Second operand has 1024 states, 1023 states have (on average 1.8739002932551319) internal successors, (1917), 1024 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)