./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 2329fc70 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-?-2329fc7 [2023-02-14 02:42:20,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 02:42:20,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 02:42:20,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 02:42:20,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 02:42:20,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 02:42:20,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 02:42:20,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 02:42:20,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 02:42:20,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 02:42:20,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 02:42:20,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 02:42:20,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 02:42:20,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 02:42:20,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 02:42:20,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 02:42:20,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 02:42:20,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 02:42:20,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 02:42:20,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 02:42:20,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 02:42:20,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 02:42:20,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 02:42:20,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 02:42:20,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 02:42:20,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 02:42:20,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 02:42:20,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 02:42:20,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 02:42:20,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 02:42:20,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 02:42:20,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 02:42:20,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 02:42:20,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 02:42:20,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 02:42:20,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 02:42:20,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 02:42:20,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 02:42:20,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 02:42:20,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 02:42:20,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 02:42:20,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-14 02:42:20,285 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 02:42:20,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 02:42:20,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 02:42:20,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 02:42:20,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 02:42:20,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 02:42:20,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 02:42:20,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 02:42:20,288 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 02:42:20,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 02:42:20,288 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 02:42:20,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 02:42:20,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 02:42:20,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 02:42:20,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 02:42:20,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 02:42:20,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 02:42:20,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 02:42:20,292 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 02:42:20,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 02:42:20,292 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 02:42:20,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c3b9571ba66fa4feec822ae5ad361f0264abe6d66c7b617817aa135932aee0a [2023-02-14 02:42:20,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 02:42:20,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 02:42:20,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 02:42:20,500 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 02:42:20,500 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 02:42:20,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2023-02-14 02:42:21,435 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 02:42:21,575 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 02:42:21,575 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2023-02-14 02:42:21,580 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa477f0c/88275e85ec784ef2b7a404ed67229abc/FLAG7a682c685 [2023-02-14 02:42:21,593 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa477f0c/88275e85ec784ef2b7a404ed67229abc [2023-02-14 02:42:21,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 02:42:21,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 02:42:21,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 02:42:21,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 02:42:21,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 02:42:21,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16de1f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21, skipping insertion in model container [2023-02-14 02:42:21,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 02:42:21,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 02:42:21,709 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] [2023-02-14 02:42:21,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 02:42:21,721 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 02:42:21,730 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] [2023-02-14 02:42:21,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 02:42:21,742 INFO L208 MainTranslator]: Completed translation [2023-02-14 02:42:21,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21 WrapperNode [2023-02-14 02:42:21,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 02:42:21,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 02:42:21,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 02:42:21,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 02:42:21,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,764 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-02-14 02:42:21,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 02:42:21,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 02:42:21,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 02:42:21,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 02:42:21,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,782 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 02:42:21,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 02:42:21,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 02:42:21,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 02:42:21,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (1/1) ... [2023-02-14 02:42:21,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 02:42:21,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:21,809 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) [2023-02-14 02:42:21,832 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 [2023-02-14 02:42:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 02:42:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 02:42:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 02:42:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 02:42:21,876 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 02:42:21,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 02:42:21,968 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 02:42:21,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 02:42:21,973 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 02:42:21,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:42:21 BoogieIcfgContainer [2023-02-14 02:42:21,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 02:42:21,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 02:42:21,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 02:42:21,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 02:42:21,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:42:21" (1/3) ... [2023-02-14 02:42:21,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c61f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:42:21, skipping insertion in model container [2023-02-14 02:42:21,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:42:21" (2/3) ... [2023-02-14 02:42:21,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c61f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:42:21, skipping insertion in model container [2023-02-14 02:42:21,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:42:21" (3/3) ... [2023-02-14 02:42:21,982 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark24_conjunctive.i [2023-02-14 02:42:21,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 02:42:22,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-14 02:42:22,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 02:42:22,062 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;@70a62bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 02:42:22,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-14 02:42:22,080 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) [2023-02-14 02:42:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-14 02:42:22,084 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-14 02:42:22,085 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)] === [2023-02-14 02:42:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-14 02:42:22,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800910040] [2023-02-14 02:42:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800910040] [2023-02-14 02:42:22,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800910040] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 02:42:22,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336358056] [2023-02-14 02:42:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 02:42:22,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 02:42:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 02:42:22,337 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) [2023-02-14 02:42:22,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,402 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2023-02-14 02:42:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 02:42:22,405 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 [2023-02-14 02:42:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,419 INFO L225 Difference]: With dead ends: 56 [2023-02-14 02:42:22,419 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 02:42:22,422 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 [2023-02-14 02:42:22,426 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:22,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:42:22,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 02:42:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2023-02-14 02:42:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.6428571428571428) 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) [2023-02-14 02:42:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-14 02:42:22,455 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2023-02-14 02:42:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,455 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-14 02:42:22,455 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) [2023-02-14 02:42:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-14 02:42:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-14 02:42:22,456 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-14 02:42:22,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 02:42:22,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2023-02-14 02:42:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547257778] [2023-02-14 02:42:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547257778] [2023-02-14 02:42:22,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547257778] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:42:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673043528] [2023-02-14 02:42:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:42:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:42:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:42:22,507 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-02-14 02:42:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,532 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-02-14 02:42:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:42:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-02-14 02:42:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,533 INFO L225 Difference]: With dead ends: 31 [2023-02-14 02:42:22,533 INFO L226 Difference]: Without dead ends: 30 [2023-02-14 02:42:22,533 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 [2023-02-14 02:42:22,534 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:42:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-14 02:42:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2023-02-14 02:42:22,537 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) [2023-02-14 02:42:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-14 02:42:22,538 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-14 02:42:22,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,538 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-14 02:42:22,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-02-14 02:42:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-14 02:42:22,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 02:42:22,539 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 02:42:22,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-14 02:42:22,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791371110] [2023-02-14 02:42:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791371110] [2023-02-14 02:42:22,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791371110] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 02:42:22,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247159883] [2023-02-14 02:42:22,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 02:42:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 02:42:22,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 02:42:22,574 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) [2023-02-14 02:42:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,599 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-14 02:42:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 02:42:22,599 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 [2023-02-14 02:42:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,600 INFO L225 Difference]: With dead ends: 23 [2023-02-14 02:42:22,600 INFO L226 Difference]: Without dead ends: 22 [2023-02-14 02:42:22,600 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 [2023-02-14 02:42:22,601 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 [2023-02-14 02:42:22,601 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] [2023-02-14 02:42:22,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-14 02:42:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-14 02:42:22,604 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) [2023-02-14 02:42:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-14 02:42:22,604 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2023-02-14 02:42:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,605 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-14 02:42:22,605 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) [2023-02-14 02:42:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-14 02:42:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 02:42:22,605 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 02:42:22,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2023-02-14 02:42:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869764797] [2023-02-14 02:42:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869764797] [2023-02-14 02:42:22,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869764797] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 02:42:22,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900270369] [2023-02-14 02:42:22,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 02:42:22,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 02:42:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 02:42:22,659 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) [2023-02-14 02:42:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,698 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2023-02-14 02:42:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 02:42:22,699 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 [2023-02-14 02:42:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,701 INFO L225 Difference]: With dead ends: 29 [2023-02-14 02:42:22,701 INFO L226 Difference]: Without dead ends: 28 [2023-02-14 02:42:22,702 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 [2023-02-14 02:42:22,711 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 [2023-02-14 02:42:22,712 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] [2023-02-14 02:42:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-14 02:42:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2023-02-14 02:42:22,717 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) [2023-02-14 02:42:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-14 02:42:22,718 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2023-02-14 02:42:22,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,718 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-14 02:42:22,718 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) [2023-02-14 02:42:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-14 02:42:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 02:42:22,719 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 02:42:22,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-14 02:42:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999689841] [2023-02-14 02:42:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999689841] [2023-02-14 02:42:22,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999689841] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:42:22,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087203505] [2023-02-14 02:42:22,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:42:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:42:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:42:22,774 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) [2023-02-14 02:42:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,784 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-14 02:42:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:42:22,785 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 [2023-02-14 02:42:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,786 INFO L225 Difference]: With dead ends: 23 [2023-02-14 02:42:22,787 INFO L226 Difference]: Without dead ends: 22 [2023-02-14 02:42:22,787 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 [2023-02-14 02:42:22,788 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 [2023-02-14 02:42:22,790 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] [2023-02-14 02:42:22,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-14 02:42:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-14 02:42:22,794 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) [2023-02-14 02:42:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-14 02:42:22,794 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2023-02-14 02:42:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,795 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-14 02:42:22,795 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) [2023-02-14 02:42:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-14 02:42:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 02:42:22,795 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 02:42:22,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1806979220, now seen corresponding path program 1 times [2023-02-14 02:42:22,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538464234] [2023-02-14 02:42:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538464234] [2023-02-14 02:42:22,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538464234] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:42:22,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512300695] [2023-02-14 02:42:22,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:42:22,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:42:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:42:22,820 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) [2023-02-14 02:42:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,831 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2023-02-14 02:42:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:42:22,831 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 [2023-02-14 02:42:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,831 INFO L225 Difference]: With dead ends: 22 [2023-02-14 02:42:22,832 INFO L226 Difference]: Without dead ends: 21 [2023-02-14 02:42:22,832 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 [2023-02-14 02:42:22,833 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 [2023-02-14 02:42:22,833 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] [2023-02-14 02:42:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-14 02:42:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-14 02:42:22,839 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) [2023-02-14 02:42:22,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-02-14 02:42:22,840 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2023-02-14 02:42:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,840 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-02-14 02:42:22,840 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) [2023-02-14 02:42:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-02-14 02:42:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 02:42:22,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 02:42:22,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-14 02:42:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132973052] [2023-02-14 02:42:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132973052] [2023-02-14 02:42:22,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132973052] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:42:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022718741] [2023-02-14 02:42:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:42:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:42:22,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:42:22,885 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) [2023-02-14 02:42:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,896 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2023-02-14 02:42:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:42:22,897 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 [2023-02-14 02:42:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,897 INFO L225 Difference]: With dead ends: 28 [2023-02-14 02:42:22,897 INFO L226 Difference]: Without dead ends: 27 [2023-02-14 02:42:22,897 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 [2023-02-14 02:42:22,898 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 [2023-02-14 02:42:22,898 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] [2023-02-14 02:42:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-14 02:42:22,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-02-14 02:42:22,900 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) [2023-02-14 02:42:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-02-14 02:42:22,900 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2023-02-14 02:42:22,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,900 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-02-14 02:42:22,900 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) [2023-02-14 02:42:22,901 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-02-14 02:42:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 02:42:22,901 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-14 02:42:22,901 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash 181781037, now seen corresponding path program 1 times [2023-02-14 02:42:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193086858] [2023-02-14 02:42:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:22,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193086858] [2023-02-14 02:42:22,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193086858] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:42:22,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:42:22,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:42:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879197001] [2023-02-14 02:42:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:42:22,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:42:22,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:22,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:42:22,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:42:22,951 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) [2023-02-14 02:42:22,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:22,964 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2023-02-14 02:42:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:42:22,964 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 [2023-02-14 02:42:22,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:22,965 INFO L225 Difference]: With dead ends: 24 [2023-02-14 02:42:22,965 INFO L226 Difference]: Without dead ends: 19 [2023-02-14 02:42:22,965 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 [2023-02-14 02:42:22,966 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 [2023-02-14 02:42:22,967 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] [2023-02-14 02:42:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-14 02:42:22,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-14 02:42:22,971 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) [2023-02-14 02:42:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-02-14 02:42:22,972 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2023-02-14 02:42:22,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:22,972 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-02-14 02:42:22,972 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) [2023-02-14 02:42:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-02-14 02:42:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-14 02:42:22,973 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:22,973 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:22,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-14 02:42:22,976 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2023-02-14 02:42:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:22,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690665502] [2023-02-14 02:42:22,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:23,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690665502] [2023-02-14 02:42:23,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690665502] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:23,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205380254] [2023-02-14 02:42:23,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:23,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:23,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:23,033 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) [2023-02-14 02:42:23,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 02:42:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 02:42:23,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205380254] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:23,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:23,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-02-14 02:42:23,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578399961] [2023-02-14 02:42:23,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:23,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-14 02:42:23,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:23,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-14 02:42:23,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-02-14 02:42:23,181 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) [2023-02-14 02:42:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:23,295 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2023-02-14 02:42:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-14 02:42:23,295 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 [2023-02-14 02:42:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:23,295 INFO L225 Difference]: With dead ends: 41 [2023-02-14 02:42:23,295 INFO L226 Difference]: Without dead ends: 39 [2023-02-14 02:42:23,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-02-14 02:42:23,296 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:23,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 37 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:42:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-14 02:42:23,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-14 02:42:23,299 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) [2023-02-14 02:42:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-02-14 02:42:23,299 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 10 [2023-02-14 02:42:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:23,299 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-02-14 02:42:23,299 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) [2023-02-14 02:42:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-02-14 02:42:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 02:42:23,300 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:23,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:23,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 02:42:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:23,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:23,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:23,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2023-02-14 02:42:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:23,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108909488] [2023-02-14 02:42:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:23,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108909488] [2023-02-14 02:42:23,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108909488] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:23,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082365967] [2023-02-14 02:42:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:23,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:23,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:23,565 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) [2023-02-14 02:42:23,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 02:42:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:23,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 02:42:23,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:23,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082365967] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:23,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:23,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-02-14 02:42:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889255107] [2023-02-14 02:42:23,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:23,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-14 02:42:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:23,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-14 02:42:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-02-14 02:42:23,768 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) [2023-02-14 02:42:23,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:23,867 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-02-14 02:42:23,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-14 02:42:23,867 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 [2023-02-14 02:42:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:23,870 INFO L225 Difference]: With dead ends: 37 [2023-02-14 02:42:23,870 INFO L226 Difference]: Without dead ends: 33 [2023-02-14 02:42:23,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-02-14 02:42:23,871 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:23,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:42:23,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-14 02:42:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-02-14 02:42:23,881 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) [2023-02-14 02:42:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-02-14 02:42:23,881 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2023-02-14 02:42:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:23,882 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-02-14 02:42:23,882 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) [2023-02-14 02:42:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-02-14 02:42:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-14 02:42:23,883 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:23,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-14 02:42:23,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:24,086 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,SelfDestructingSolverStorable9 [2023-02-14 02:42:24,086 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:24,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:24,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-14 02:42:24,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:24,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379465211] [2023-02-14 02:42:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:24,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379465211] [2023-02-14 02:42:24,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379465211] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277625040] [2023-02-14 02:42:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:24,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:24,111 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) [2023-02-14 02:42:24,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 02:42:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:24,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 02:42:24,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277625040] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:24,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:24,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-14 02:42:24,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280167273] [2023-02-14 02:42:24,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:24,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 02:42:24,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:24,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 02:42:24,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 02:42:24,185 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) [2023-02-14 02:42:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:24,205 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2023-02-14 02:42:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 02:42:24,205 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 [2023-02-14 02:42:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:24,205 INFO L225 Difference]: With dead ends: 41 [2023-02-14 02:42:24,206 INFO L226 Difference]: Without dead ends: 40 [2023-02-14 02:42:24,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 02:42:24,206 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:24,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:42:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-14 02:42:24,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2023-02-14 02:42:24,208 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) [2023-02-14 02:42:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-14 02:42:24,209 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2023-02-14 02:42:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:24,209 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-14 02:42:24,209 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) [2023-02-14 02:42:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-14 02:42:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 02:42:24,209 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:24,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-14 02:42:24,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:24,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:24,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:24,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash 487275762, now seen corresponding path program 1 times [2023-02-14 02:42:24,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:24,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230112683] [2023-02-14 02:42:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:24,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230112683] [2023-02-14 02:42:24,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230112683] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611783953] [2023-02-14 02:42:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:24,468 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) [2023-02-14 02:42:24,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 02:42:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:24,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-14 02:42:24,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:24,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611783953] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:24,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:24,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-02-14 02:42:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619173548] [2023-02-14 02:42:24,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:24,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-14 02:42:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:24,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-14 02:42:24,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-02-14 02:42:24,642 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) [2023-02-14 02:42:24,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:24,758 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-02-14 02:42:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-14 02:42:24,759 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 [2023-02-14 02:42:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:24,759 INFO L225 Difference]: With dead ends: 35 [2023-02-14 02:42:24,759 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 02:42:24,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2023-02-14 02:42:24,760 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:24,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 10 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:42:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 02:42:24,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-14 02:42:24,763 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) [2023-02-14 02:42:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-14 02:42:24,763 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2023-02-14 02:42:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:24,763 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-14 02:42:24,763 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) [2023-02-14 02:42:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-14 02:42:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 02:42:24,763 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:24,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:24,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-14 02:42:24,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:24,964 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2023-02-14 02:42:24,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:24,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179208343] [2023-02-14 02:42:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:25,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179208343] [2023-02-14 02:42:25,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179208343] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224062969] [2023-02-14 02:42:25,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 02:42:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:25,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:25,075 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) [2023-02-14 02:42:25,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 02:42:25,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 02:42:25,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:25,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-14 02:42:25,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:25,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:25,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224062969] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:25,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:25,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2023-02-14 02:42:25,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289214577] [2023-02-14 02:42:25,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:25,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-14 02:42:25,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:25,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-14 02:42:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2023-02-14 02:42:25,415 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) [2023-02-14 02:42:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:25,710 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2023-02-14 02:42:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-14 02:42:25,710 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 [2023-02-14 02:42:25,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:25,711 INFO L225 Difference]: With dead ends: 50 [2023-02-14 02:42:25,711 INFO L226 Difference]: Without dead ends: 45 [2023-02-14 02:42:25,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=447, Invalid=1359, Unknown=0, NotChecked=0, Total=1806 [2023-02-14 02:42:25,712 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 38 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:25,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 21 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:42:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-14 02:42:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-02-14 02:42:25,719 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) [2023-02-14 02:42:25,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2023-02-14 02:42:25,720 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2023-02-14 02:42:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:25,721 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2023-02-14 02:42:25,721 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) [2023-02-14 02:42:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2023-02-14 02:42:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-14 02:42:25,721 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:25,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-14 02:42:25,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:25,925 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,SelfDestructingSolverStorable12 [2023-02-14 02:42:25,925 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-14 02:42:25,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:25,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139380062] [2023-02-14 02:42:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:25,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:25,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:25,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139380062] [2023-02-14 02:42:25,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139380062] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:25,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718556801] [2023-02-14 02:42:25,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 02:42:25,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:25,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:25,990 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) [2023-02-14 02:42:25,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 02:42:26,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 02:42:26,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:26,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 02:42:26,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:26,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:26,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718556801] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:26,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:26,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-14 02:42:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154329622] [2023-02-14 02:42:26,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 02:42:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 02:42:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 02:42:26,101 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) [2023-02-14 02:42:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:26,134 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2023-02-14 02:42:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 02:42:26,134 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 [2023-02-14 02:42:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:26,134 INFO L225 Difference]: With dead ends: 72 [2023-02-14 02:42:26,135 INFO L226 Difference]: Without dead ends: 71 [2023-02-14 02:42:26,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 02:42:26,135 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 43 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 [2023-02-14 02:42:26,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 43 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:42:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-14 02:42:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2023-02-14 02:42:26,139 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) [2023-02-14 02:42:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2023-02-14 02:42:26,139 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 28 [2023-02-14 02:42:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:26,140 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2023-02-14 02:42:26,140 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) [2023-02-14 02:42:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2023-02-14 02:42:26,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-14 02:42:26,141 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:26,141 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:26,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:26,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:26,345 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2023-02-14 02:42:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:26,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446830108] [2023-02-14 02:42:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:26,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:26,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446830108] [2023-02-14 02:42:26,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446830108] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:26,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208261536] [2023-02-14 02:42:26,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 02:42:26,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:26,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:26,568 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) [2023-02-14 02:42:26,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 02:42:26,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-14 02:42:26,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:26,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-14 02:42:26,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:27,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:27,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208261536] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:27,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:27,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 24] total 63 [2023-02-14 02:42:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856067267] [2023-02-14 02:42:27,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:27,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-14 02:42:27,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-14 02:42:27,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=805, Invalid=3227, Unknown=0, NotChecked=0, Total=4032 [2023-02-14 02:42:27,566 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) [2023-02-14 02:42:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:28,747 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-14 02:42:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-14 02:42:28,747 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 [2023-02-14 02:42:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:28,747 INFO L225 Difference]: With dead ends: 92 [2023-02-14 02:42:28,748 INFO L226 Difference]: Without dead ends: 87 [2023-02-14 02:42:28,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3268 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1829, Invalid=6361, Unknown=0, NotChecked=0, Total=8190 [2023-02-14 02:42:28,750 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 185 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:28,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 30 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 02:42:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-14 02:42:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2023-02-14 02:42:28,754 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) [2023-02-14 02:42:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2023-02-14 02:42:28,754 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 41 [2023-02-14 02:42:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:28,755 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2023-02-14 02:42:28,755 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) [2023-02-14 02:42:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2023-02-14 02:42:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-14 02:42:28,755 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:28,755 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2023-02-14 02:42:28,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:28,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:28,963 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:28,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:28,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 3 times [2023-02-14 02:42:28,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:28,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56296066] [2023-02-14 02:42:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:28,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:29,092 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:29,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:29,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56296066] [2023-02-14 02:42:29,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56296066] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:29,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44707234] [2023-02-14 02:42:29,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 02:42:29,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:29,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:29,095 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) [2023-02-14 02:42:29,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 02:42:29,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-14 02:42:29,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:29,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-14 02:42:29,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:29,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:29,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44707234] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:29,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:29,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-14 02:42:29,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71631048] [2023-02-14 02:42:29,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:29,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-14 02:42:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-14 02:42:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 02:42:29,390 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) [2023-02-14 02:42:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:29,467 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2023-02-14 02:42:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-14 02:42:29,468 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 [2023-02-14 02:42:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:29,469 INFO L225 Difference]: With dead ends: 144 [2023-02-14 02:42:29,469 INFO L226 Difference]: Without dead ends: 143 [2023-02-14 02:42:29,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 02:42:29,470 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:29,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 84 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:42:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-02-14 02:42:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 122. [2023-02-14 02:42:29,485 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) [2023-02-14 02:42:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2023-02-14 02:42:29,486 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 58 [2023-02-14 02:42:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:29,486 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2023-02-14 02:42:29,487 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) [2023-02-14 02:42:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2023-02-14 02:42:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-14 02:42:29,489 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:29,489 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:29,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-14 02:42:29,693 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,SelfDestructingSolverStorable15 [2023-02-14 02:42:29,694 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:29,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2023-02-14 02:42:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:29,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222063841] [2023-02-14 02:42:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:29,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:30,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:30,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222063841] [2023-02-14 02:42:30,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222063841] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:30,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882512079] [2023-02-14 02:42:30,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 02:42:30,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:30,300 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) [2023-02-14 02:42:30,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-14 02:42:30,344 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 02:42:30,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:30,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-14 02:42:30,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:31,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:33,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882512079] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:33,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:33,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 48, 48] total 127 [2023-02-14 02:42:33,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866728391] [2023-02-14 02:42:33,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:33,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-14 02:42:33,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:33,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-14 02:42:33,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2961, Invalid=13295, Unknown=0, NotChecked=0, Total=16256 [2023-02-14 02:42:33,291 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) [2023-02-14 02:42:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:38,453 INFO L93 Difference]: Finished difference Result 176 states and 191 transitions. [2023-02-14 02:42:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-02-14 02:42:38,454 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 [2023-02-14 02:42:38,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:38,455 INFO L225 Difference]: With dead ends: 176 [2023-02-14 02:42:38,455 INFO L226 Difference]: Without dead ends: 171 [2023-02-14 02:42:38,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14744 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=7329, Invalid=27453, Unknown=0, NotChecked=0, Total=34782 [2023-02-14 02:42:38,462 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 578 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:38,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 59 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2834 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-14 02:42:38,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-02-14 02:42:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 163. [2023-02-14 02:42:38,476 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) [2023-02-14 02:42:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 171 transitions. [2023-02-14 02:42:38,476 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 171 transitions. Word has length 81 [2023-02-14 02:42:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:38,477 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 171 transitions. [2023-02-14 02:42:38,477 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) [2023-02-14 02:42:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 171 transitions. [2023-02-14 02:42:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-02-14 02:42:38,481 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:38,481 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2023-02-14 02:42:38,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:38,685 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,SelfDestructingSolverStorable16 [2023-02-14 02:42:38,686 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 4 times [2023-02-14 02:42:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:38,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084195084] [2023-02-14 02:42:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:39,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:39,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084195084] [2023-02-14 02:42:39,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084195084] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:39,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48673634] [2023-02-14 02:42:39,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 02:42:39,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:39,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:39,150 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) [2023-02-14 02:42:39,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-14 02:42:39,202 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 02:42:39,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:39,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 02:42:39,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:39,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:39,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48673634] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:39,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:39,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-14 02:42:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397714493] [2023-02-14 02:42:39,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:39,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-14 02:42:39,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:39,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-14 02:42:39,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 02:42:39,967 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) [2023-02-14 02:42:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:42:40,095 INFO L93 Difference]: Finished difference Result 288 states and 311 transitions. [2023-02-14 02:42:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-14 02:42:40,097 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 [2023-02-14 02:42:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:42:40,098 INFO L225 Difference]: With dead ends: 288 [2023-02-14 02:42:40,098 INFO L226 Difference]: Without dead ends: 287 [2023-02-14 02:42:40,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 02:42:40,099 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 123 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:42:40,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 141 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:42:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-02-14 02:42:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2023-02-14 02:42:40,108 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) [2023-02-14 02:42:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 257 transitions. [2023-02-14 02:42:40,109 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 257 transitions. Word has length 118 [2023-02-14 02:42:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:42:40,109 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 257 transitions. [2023-02-14 02:42:40,110 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) [2023-02-14 02:42:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 257 transitions. [2023-02-14 02:42:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-14 02:42:40,110 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:42:40,110 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2023-02-14 02:42:40,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-14 02:42:40,315 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,SelfDestructingSolverStorable17 [2023-02-14 02:42:40,316 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:42:40,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:42:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2023-02-14 02:42:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:42:40,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683639875] [2023-02-14 02:42:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:42:40,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:42:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:42:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:42,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:42:42,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683639875] [2023-02-14 02:42:42,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683639875] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:42:42,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026389848] [2023-02-14 02:42:42,328 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 02:42:42,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:42:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:42:42,330 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) [2023-02-14 02:42:42,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-14 02:42:42,401 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-14 02:42:42,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:42:42,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-14 02:42:42,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:42:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:45,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:42:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:42:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026389848] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:42:52,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:42:52,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 96, 96] total 255 [2023-02-14 02:42:52,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276303017] [2023-02-14 02:42:52,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:42:52,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-14 02:42:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:42:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-14 02:42:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11305, Invalid=53975, Unknown=0, NotChecked=0, Total=65280 [2023-02-14 02:42:52,152 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) [2023-02-14 02:43:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:43:18,811 INFO L93 Difference]: Finished difference Result 344 states and 375 transitions. [2023-02-14 02:43:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2023-02-14 02:43:18,811 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 [2023-02-14 02:43:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:43:18,813 INFO L225 Difference]: With dead ends: 344 [2023-02-14 02:43:18,813 INFO L226 Difference]: Without dead ends: 339 [2023-02-14 02:43:18,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62464 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=29273, Invalid=113989, Unknown=0, NotChecked=0, Total=143262 [2023-02-14 02:43:18,820 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1600 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9741 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 9742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:43:18,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 108 Invalid, 9742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9741 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-02-14 02:43:18,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-02-14 02:43:18,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2023-02-14 02:43:18,839 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) [2023-02-14 02:43:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2023-02-14 02:43:18,839 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 161 [2023-02-14 02:43:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:43:18,840 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2023-02-14 02:43:18,840 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) [2023-02-14 02:43:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2023-02-14 02:43:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-14 02:43:18,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:18,841 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2023-02-14 02:43:18,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-14 02:43:19,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:43:19,046 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:43:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 5 times [2023-02-14 02:43:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364712606] [2023-02-14 02:43:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:19,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:43:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:20,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:43:20,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364712606] [2023-02-14 02:43:20,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364712606] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:43:20,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050841097] [2023-02-14 02:43:20,204 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 02:43:20,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:43:20,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:43:20,206 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) [2023-02-14 02:43:20,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-14 02:43:20,310 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-14 02:43:20,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:43:20,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-14 02:43:20,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:43:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:20,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:43:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050841097] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:43:22,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:43:22,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-14 02:43:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123935344] [2023-02-14 02:43:22,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:43:22,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-14 02:43:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:43:22,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-14 02:43:22,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 02:43:22,651 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) [2023-02-14 02:43:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:43:23,023 INFO L93 Difference]: Finished difference Result 576 states and 623 transitions. [2023-02-14 02:43:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-14 02:43:23,024 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 [2023-02-14 02:43:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:43:23,025 INFO L225 Difference]: With dead ends: 576 [2023-02-14 02:43:23,025 INFO L226 Difference]: Without dead ends: 575 [2023-02-14 02:43:23,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 02:43:23,026 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 390 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 02:43:23,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 273 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 02:43:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-02-14 02:43:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 482. [2023-02-14 02:43:23,048 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) [2023-02-14 02:43:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 513 transitions. [2023-02-14 02:43:23,049 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 513 transitions. Word has length 238 [2023-02-14 02:43:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:43:23,049 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 513 transitions. [2023-02-14 02:43:23,049 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) [2023-02-14 02:43:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 513 transitions. [2023-02-14 02:43:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-14 02:43:23,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:23,052 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2023-02-14 02:43:23,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-14 02:43:23,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:43:23,258 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 02:43:23,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2023-02-14 02:43:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349823093] [2023-02-14 02:43:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:23,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:43:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:30,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:43:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349823093] [2023-02-14 02:43:30,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349823093] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 02:43:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741422692] [2023-02-14 02:43:30,877 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-14 02:43:30,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 02:43:30,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:43:30,878 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) [2023-02-14 02:43:30,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-14 02:43:31,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-14 02:43:31,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 02:43:31,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 193 conjunts are in the unsatisfiable core [2023-02-14 02:43:31,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 02:43:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:42,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 02:44:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:44:07,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741422692] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 02:44:07,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 02:44:07,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 192, 192] total 511 [2023-02-14 02:44:07,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043636925] [2023-02-14 02:44:07,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 02:44:07,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2023-02-14 02:44:07,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:44:07,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2023-02-14 02:44:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44121, Invalid=217511, Unknown=0, NotChecked=0, Total=261632 [2023-02-14 02:44:07,087 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)