./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Primes.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/recursive/Primes.c -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 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:42:51,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:42:51,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:42:51,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:42:51,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:42:51,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:42:51,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:42:51,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:42:51,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:42:51,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:42:51,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:42:51,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:42:51,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:42:51,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:42:51,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:42:51,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:42:51,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:42:51,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:42:51,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:42:51,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:42:51,527 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:42:51,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:42:51,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:42:51,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:42:51,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:42:51,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:42:51,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:42:51,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:42:51,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:42:51,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:42:51,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:42:51,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:42:51,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:42:51,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:42:51,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:42:51,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:42:51,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:42:51,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:42:51,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:42:51,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:42:51,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:42:51,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:42:51,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:42:51,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:42:51,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:42:51,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:42:51,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:42:51,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:42:51,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:42:51,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:42:51,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:42:51,562 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:42:51,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:42:51,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:42:51,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:42:51,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:42:51,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:42:51,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:42:51,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:42:51,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:42:51,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e [2022-07-22 00:42:51,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:42:51,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:42:51,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:42:51,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:42:51,816 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:42:51,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Primes.c [2022-07-22 00:42:51,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e277049e/15d8567f8c734d6fbd111995525b9721/FLAG759b6bf82 [2022-07-22 00:42:52,229 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:42:52,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c [2022-07-22 00:42:52,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e277049e/15d8567f8c734d6fbd111995525b9721/FLAG759b6bf82 [2022-07-22 00:42:52,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e277049e/15d8567f8c734d6fbd111995525b9721 [2022-07-22 00:42:52,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:42:52,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:42:52,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:42:52,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:42:52,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:42:52,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e142924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52, skipping insertion in model container [2022-07-22 00:42:52,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:42:52,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:42:52,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c[2190,2203] [2022-07-22 00:42:52,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:42:52,412 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:42:52,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c[2190,2203] [2022-07-22 00:42:52,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:42:52,468 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:42:52,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52 WrapperNode [2022-07-22 00:42:52,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:42:52,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:42:52,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:42:52,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:42:52,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,501 INFO L137 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-07-22 00:42:52,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:42:52,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:42:52,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:42:52,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:42:52,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:42:52,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:42:52,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:42:52,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:42:52,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (1/1) ... [2022-07-22 00:42:52,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:42:52,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:52,566 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) [2022-07-22 00:42:52,583 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 [2022-07-22 00:42:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2022-07-22 00:42:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2022-07-22 00:42:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:42:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-07-22 00:42:52,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-07-22 00:42:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2022-07-22 00:42:52,599 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2022-07-22 00:42:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:42:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:42:52,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:42:52,651 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:42:52,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:42:52,815 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:42:52,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:42:52,826 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:42:52,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:52 BoogieIcfgContainer [2022-07-22 00:42:52,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:42:52,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:42:52,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:42:52,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:42:52,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:42:52" (1/3) ... [2022-07-22 00:42:52,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f666d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:42:52, skipping insertion in model container [2022-07-22 00:42:52,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:52" (2/3) ... [2022-07-22 00:42:52,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f666d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:42:52, skipping insertion in model container [2022-07-22 00:42:52,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:52" (3/3) ... [2022-07-22 00:42:52,846 INFO L111 eAbstractionObserver]: Analyzing ICFG Primes.c [2022-07-22 00:42:52,857 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:42:52,857 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-22 00:42:52,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:42:52,905 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@407c656e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b11466f [2022-07-22 00:42:52,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-07-22 00:42:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 70 states have internal predecessors, (87), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-22 00:42:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-22 00:42:52,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:52,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-22 00:42:52,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:52,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2957412, now seen corresponding path program 1 times [2022-07-22 00:42:52,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:52,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326877347] [2022-07-22 00:42:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:52,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326877347] [2022-07-22 00:42:53,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326877347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:42:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403719557] [2022-07-22 00:42:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:42:53,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:42:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:42:53,092 INFO L87 Difference]: Start difference. First operand has 83 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 70 states have internal predecessors, (87), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-22 00:42:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,133 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2022-07-22 00:42:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:42:53,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-22 00:42:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,143 INFO L225 Difference]: With dead ends: 89 [2022-07-22 00:42:53,143 INFO L226 Difference]: Without dead ends: 76 [2022-07-22 00:42:53,145 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 [2022-07-22 00:42:53,149 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 16 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 187 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 [2022-07-22 00:42:53,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 187 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:53,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-22 00:42:53,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-07-22 00:42:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-22 00:42:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2022-07-22 00:42:53,194 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 4 [2022-07-22 00:42:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,195 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2022-07-22 00:42:53,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-22 00:42:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2022-07-22 00:42:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-22 00:42:53,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-22 00:42:53,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:42:53,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 91679879, now seen corresponding path program 1 times [2022-07-22 00:42:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931067628] [2022-07-22 00:42:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931067628] [2022-07-22 00:42:53,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931067628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:42:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573543893] [2022-07-22 00:42:53,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:42:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:42:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:42:53,232 INFO L87 Difference]: Start difference. First operand 76 states and 93 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) [2022-07-22 00:42:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,244 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2022-07-22 00:42:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:42:53,244 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 [2022-07-22 00:42:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,245 INFO L225 Difference]: With dead ends: 76 [2022-07-22 00:42:53,245 INFO L226 Difference]: Without dead ends: 75 [2022-07-22 00:42:53,246 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 [2022-07-22 00:42:53,247 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 6 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:53,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 172 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-22 00:42:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-07-22 00:42:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 63 states have internal predecessors, (75), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-22 00:42:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2022-07-22 00:42:53,254 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 5 [2022-07-22 00:42:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,254 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2022-07-22 00:42:53,255 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) [2022-07-22 00:42:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2022-07-22 00:42:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 00:42:53,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:53,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:42:53,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1790314255, now seen corresponding path program 1 times [2022-07-22 00:42:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938625040] [2022-07-22 00:42:53,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938625040] [2022-07-22 00:42:53,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938625040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:42:53,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160734503] [2022-07-22 00:42:53,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:42:53,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:42:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:42:53,333 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,422 INFO L93 Difference]: Finished difference Result 139 states and 178 transitions. [2022-07-22 00:42:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:42:53,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-22 00:42:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,424 INFO L225 Difference]: With dead ends: 139 [2022-07-22 00:42:53,424 INFO L226 Difference]: Without dead ends: 70 [2022-07-22 00:42:53,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:53,426 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 43 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:53,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 241 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-22 00:42:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-07-22 00:42:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-22 00:42:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-07-22 00:42:53,442 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 15 [2022-07-22 00:42:53,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,443 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-07-22 00:42:53,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2022-07-22 00:42:53,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 00:42:53,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:53,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:42:53,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,445 INFO L85 PathProgramCache]: Analyzing trace with hash -334825923, now seen corresponding path program 1 times [2022-07-22 00:42:53,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717354377] [2022-07-22 00:42:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717354377] [2022-07-22 00:42:53,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717354377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:42:53,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882264510] [2022-07-22 00:42:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:42:53,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:42:53,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:42:53,515 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,623 INFO L93 Difference]: Finished difference Result 145 states and 178 transitions. [2022-07-22 00:42:53,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:42:53,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-22 00:42:53,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,625 INFO L225 Difference]: With dead ends: 145 [2022-07-22 00:42:53,625 INFO L226 Difference]: Without dead ends: 83 [2022-07-22 00:42:53,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:53,627 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 31 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:53,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 267 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-22 00:42:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2022-07-22 00:42:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 66 states have internal predecessors, (78), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-22 00:42:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2022-07-22 00:42:53,639 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 95 transitions. Word has length 16 [2022-07-22 00:42:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,639 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 95 transitions. [2022-07-22 00:42:53,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 95 transitions. [2022-07-22 00:42:53,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 00:42:53,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:53,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:42:53,640 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 355054241, now seen corresponding path program 1 times [2022-07-22 00:42:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18622585] [2022-07-22 00:42:53,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18622585] [2022-07-22 00:42:53,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18622585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:42:53,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550156848] [2022-07-22 00:42:53,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:42:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:42:53,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:53,702 INFO L87 Difference]: Start difference. First operand 79 states and 95 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,796 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2022-07-22 00:42:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:42:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 00:42:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,797 INFO L225 Difference]: With dead ends: 107 [2022-07-22 00:42:53,797 INFO L226 Difference]: Without dead ends: 106 [2022-07-22 00:42:53,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:42:53,798 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:53,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 310 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-22 00:42:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-07-22 00:42:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.4) internal successors, (105), 86 states have internal predecessors, (105), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-22 00:42:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2022-07-22 00:42:53,807 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 18 [2022-07-22 00:42:53,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,807 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2022-07-22 00:42:53,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2022-07-22 00:42:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 00:42:53,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 00:42:53,808 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1880405543, now seen corresponding path program 1 times [2022-07-22 00:42:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389861843] [2022-07-22 00:42:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389861843] [2022-07-22 00:42:53,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389861843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 00:42:53,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610599139] [2022-07-22 00:42:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 00:42:53,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 00:42:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:42:53,864 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:53,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:53,912 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-07-22 00:42:53,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:42:53,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-07-22 00:42:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:53,914 INFO L225 Difference]: With dead ends: 136 [2022-07-22 00:42:53,914 INFO L226 Difference]: Without dead ends: 106 [2022-07-22 00:42:53,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 00:42:53,920 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 4 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:53,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 463 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-22 00:42:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-07-22 00:42:53,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 86 states have internal predecessors, (103), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-22 00:42:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-07-22 00:42:53,939 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 19 [2022-07-22 00:42:53,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:53,939 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-22 00:42:53,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-07-22 00:42:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 00:42:53,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:53,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:53,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 00:42:53,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1878220355, now seen corresponding path program 1 times [2022-07-22 00:42:53,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:53,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263958503] [2022-07-22 00:42:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:53,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:53,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:53,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263958503] [2022-07-22 00:42:53,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263958503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:53,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:53,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 00:42:53,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355959072] [2022-07-22 00:42:53,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:53,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:42:53,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:53,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:42:53,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:53,985 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:54,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:54,061 INFO L93 Difference]: Finished difference Result 106 states and 126 transitions. [2022-07-22 00:42:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 00:42:54,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-22 00:42:54,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:54,062 INFO L225 Difference]: With dead ends: 106 [2022-07-22 00:42:54,062 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 00:42:54,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:42:54,065 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:54,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 279 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:54,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 00:42:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-07-22 00:42:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 86 states have internal predecessors, (101), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-22 00:42:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2022-07-22 00:42:54,088 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 19 [2022-07-22 00:42:54,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:54,088 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2022-07-22 00:42:54,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2022-07-22 00:42:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-22 00:42:54,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:54,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:54,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 00:42:54,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:54,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1361525461, now seen corresponding path program 1 times [2022-07-22 00:42:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:54,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24314751] [2022-07-22 00:42:54,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:54,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:54,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24314751] [2022-07-22 00:42:54,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24314751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:54,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:54,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:42:54,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230278151] [2022-07-22 00:42:54,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:54,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:42:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:42:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:42:54,127 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:54,166 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2022-07-22 00:42:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:42:54,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-07-22 00:42:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:54,170 INFO L225 Difference]: With dead ends: 143 [2022-07-22 00:42:54,170 INFO L226 Difference]: Without dead ends: 119 [2022-07-22 00:42:54,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:54,173 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:54,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 287 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-22 00:42:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2022-07-22 00:42:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 94 states have internal predecessors, (112), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-22 00:42:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-07-22 00:42:54,184 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 20 [2022-07-22 00:42:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:54,184 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-07-22 00:42:54,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-07-22 00:42:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-22 00:42:54,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:54,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:54,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 00:42:54,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting multErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:54,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:54,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1538837383, now seen corresponding path program 1 times [2022-07-22 00:42:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:54,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061877213] [2022-07-22 00:42:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:54,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061877213] [2022-07-22 00:42:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061877213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:54,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:42:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096796196] [2022-07-22 00:42:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:54,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:42:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:42:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:42:54,214 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:54,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:54,258 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2022-07-22 00:42:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:42:54,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-07-22 00:42:54,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:54,260 INFO L225 Difference]: With dead ends: 137 [2022-07-22 00:42:54,260 INFO L226 Difference]: Without dead ends: 135 [2022-07-22 00:42:54,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:42:54,260 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 41 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:54,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 258 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-07-22 00:42:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-07-22 00:42:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 106 states have internal predecessors, (130), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 00:42:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2022-07-22 00:42:54,272 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 22 [2022-07-22 00:42:54,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:54,272 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2022-07-22 00:42:54,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2022-07-22 00:42:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 00:42:54,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:54,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:54,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 00:42:54,274 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:54,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1613355843, now seen corresponding path program 1 times [2022-07-22 00:42:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:54,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859064958] [2022-07-22 00:42:54,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:54,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:54,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859064958] [2022-07-22 00:42:54,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859064958] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:54,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452166345] [2022-07-22 00:42:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:54,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:54,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:54,343 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) [2022-07-22 00:42:54,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:42:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:54,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 00:42:54,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:54,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:54,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452166345] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:54,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:54,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 23 [2022-07-22 00:42:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518494811] [2022-07-22 00:42:54,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:54,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:42:54,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:42:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:42:54,742 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:55,129 INFO L93 Difference]: Finished difference Result 276 states and 348 transitions. [2022-07-22 00:42:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 00:42:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-22 00:42:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:55,130 INFO L225 Difference]: With dead ends: 276 [2022-07-22 00:42:55,130 INFO L226 Difference]: Without dead ends: 167 [2022-07-22 00:42:55,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=1132, Unknown=0, NotChecked=0, Total=1332 [2022-07-22 00:42:55,132 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 272 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 579 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:42:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-07-22 00:42:55,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 154. [2022-07-22 00:42:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 118 states have (on average 1.3135593220338984) internal successors, (155), 126 states have internal predecessors, (155), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-07-22 00:42:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 190 transitions. [2022-07-22 00:42:55,139 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 190 transitions. Word has length 24 [2022-07-22 00:42:55,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:55,139 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 190 transitions. [2022-07-22 00:42:55,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 190 transitions. [2022-07-22 00:42:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 00:42:55,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:55,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:55,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:55,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 00:42:55,359 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:55,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 48447777, now seen corresponding path program 1 times [2022-07-22 00:42:55,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:55,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085336432] [2022-07-22 00:42:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 00:42:55,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:55,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085336432] [2022-07-22 00:42:55,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085336432] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:55,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505241510] [2022-07-22 00:42:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:55,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:55,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:55,403 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) [2022-07-22 00:42:55,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:42:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:55,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-22 00:42:55,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:55,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:42:55,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505241510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:55,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:42:55,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2022-07-22 00:42:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964561700] [2022-07-22 00:42:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:55,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 00:42:55,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:55,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 00:42:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:55,524 INFO L87 Difference]: Start difference. First operand 154 states and 190 transitions. Second operand has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:55,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:55,670 INFO L93 Difference]: Finished difference Result 256 states and 316 transitions. [2022-07-22 00:42:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 00:42:55,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-22 00:42:55,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:55,671 INFO L225 Difference]: With dead ends: 256 [2022-07-22 00:42:55,671 INFO L226 Difference]: Without dead ends: 199 [2022-07-22 00:42:55,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:42:55,672 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:55,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 464 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:55,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-07-22 00:42:55,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2022-07-22 00:42:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 151 states have (on average 1.2847682119205297) internal successors, (194), 159 states have internal predecessors, (194), 23 states have call successors, (23), 13 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-22 00:42:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 239 transitions. [2022-07-22 00:42:55,680 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 239 transitions. Word has length 26 [2022-07-22 00:42:55,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:55,681 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 239 transitions. [2022-07-22 00:42:55,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:55,681 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 239 transitions. [2022-07-22 00:42:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-22 00:42:55,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:55,682 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:55,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:55,898 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,SelfDestructingSolverStorable10 [2022-07-22 00:42:55,898 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:55,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:55,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2143137265, now seen corresponding path program 1 times [2022-07-22 00:42:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:55,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019085962] [2022-07-22 00:42:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:55,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:55,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:55,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019085962] [2022-07-22 00:42:55,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019085962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:55,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:42:55,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:42:55,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7898109] [2022-07-22 00:42:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:55,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:42:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:42:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:42:55,940 INFO L87 Difference]: Start difference. First operand 195 states and 239 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:55,984 INFO L93 Difference]: Finished difference Result 221 states and 274 transitions. [2022-07-22 00:42:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:42:55,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-07-22 00:42:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:55,986 INFO L225 Difference]: With dead ends: 221 [2022-07-22 00:42:55,986 INFO L226 Difference]: Without dead ends: 219 [2022-07-22 00:42:55,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:42:55,987 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 52 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:55,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 198 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-07-22 00:42:55,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 210. [2022-07-22 00:42:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 164 states have (on average 1.2804878048780488) internal successors, (210), 171 states have internal predecessors, (210), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 00:42:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 259 transitions. [2022-07-22 00:42:55,999 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 259 transitions. Word has length 27 [2022-07-22 00:42:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:55,999 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 259 transitions. [2022-07-22 00:42:55,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 259 transitions. [2022-07-22 00:42:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 00:42:56,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:56,004 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:56,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 00:42:56,004 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1537468884, now seen corresponding path program 1 times [2022-07-22 00:42:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882923502] [2022-07-22 00:42:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:56,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:56,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:56,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882923502] [2022-07-22 00:42:56,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882923502] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:56,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199199261] [2022-07-22 00:42:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:56,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:56,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:56,077 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) [2022-07-22 00:42:56,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:42:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:42:56,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:42:56,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:42:56,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199199261] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:56,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:56,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2022-07-22 00:42:56,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62290082] [2022-07-22 00:42:56,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:56,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:42:56,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:56,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:42:56,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:42:56,162 INFO L87 Difference]: Start difference. First operand 210 states and 259 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:56,209 INFO L93 Difference]: Finished difference Result 224 states and 274 transitions. [2022-07-22 00:42:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:42:56,210 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-22 00:42:56,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:56,210 INFO L225 Difference]: With dead ends: 224 [2022-07-22 00:42:56,211 INFO L226 Difference]: Without dead ends: 176 [2022-07-22 00:42:56,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:56,211 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 91 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:56,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 351 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-22 00:42:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2022-07-22 00:42:56,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.237037037037037) internal successors, (167), 140 states have internal predecessors, (167), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:42:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2022-07-22 00:42:56,219 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 32 [2022-07-22 00:42:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:56,219 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2022-07-22 00:42:56,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:42:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2022-07-22 00:42:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 00:42:56,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:56,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:56,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:56,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:56,436 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:56,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:56,436 INFO L85 PathProgramCache]: Analyzing trace with hash -118239160, now seen corresponding path program 1 times [2022-07-22 00:42:56,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:56,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361749022] [2022-07-22 00:42:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:56,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:42:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:42:56,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:56,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361749022] [2022-07-22 00:42:56,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361749022] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:56,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651400581] [2022-07-22 00:42:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:56,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:56,491 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) [2022-07-22 00:42:56,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:42:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 00:42:56,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:56,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:56,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651400581] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:56,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:56,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-07-22 00:42:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297552835] [2022-07-22 00:42:56,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:56,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 00:42:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 00:42:56,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:56,628 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:56,729 INFO L93 Difference]: Finished difference Result 186 states and 224 transitions. [2022-07-22 00:42:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 00:42:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2022-07-22 00:42:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:56,730 INFO L225 Difference]: With dead ends: 186 [2022-07-22 00:42:56,731 INFO L226 Difference]: Without dead ends: 174 [2022-07-22 00:42:56,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:42:56,731 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 48 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:56,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 657 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:56,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-22 00:42:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2022-07-22 00:42:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 140 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 00:42:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 205 transitions. [2022-07-22 00:42:56,738 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 205 transitions. Word has length 31 [2022-07-22 00:42:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:56,739 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 205 transitions. [2022-07-22 00:42:56,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 205 transitions. [2022-07-22 00:42:56,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 00:42:56,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:56,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:56,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:56,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:56,955 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash 644683350, now seen corresponding path program 1 times [2022-07-22 00:42:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:56,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587486382] [2022-07-22 00:42:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:42:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:57,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587486382] [2022-07-22 00:42:57,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587486382] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:57,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548499457] [2022-07-22 00:42:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:57,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:57,028 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) [2022-07-22 00:42:57,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:42:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:42:57,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548499457] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:57,151 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:57,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-22 00:42:57,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261172667] [2022-07-22 00:42:57,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:57,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 00:42:57,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:57,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 00:42:57,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:57,153 INFO L87 Difference]: Start difference. First operand 172 states and 205 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:57,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:57,210 INFO L93 Difference]: Finished difference Result 182 states and 217 transitions. [2022-07-22 00:42:57,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:42:57,210 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2022-07-22 00:42:57,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:57,211 INFO L225 Difference]: With dead ends: 182 [2022-07-22 00:42:57,211 INFO L226 Difference]: Without dead ends: 181 [2022-07-22 00:42:57,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:42:57,212 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 33 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:57,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 516 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-22 00:42:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2022-07-22 00:42:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 144 states have internal predecessors, (171), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (21), 21 states have call predecessors, (21), 19 states have call successors, (21) [2022-07-22 00:42:57,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2022-07-22 00:42:57,220 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 32 [2022-07-22 00:42:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:57,220 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2022-07-22 00:42:57,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2022-07-22 00:42:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-22 00:42:57,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:57,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:57,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:57,437 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,SelfDestructingSolverStorable14 [2022-07-22 00:42:57,437 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:57,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:57,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1489652536, now seen corresponding path program 1 times [2022-07-22 00:42:57,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:57,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376435428] [2022-07-22 00:42:57,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:57,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:42:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:42:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:57,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376435428] [2022-07-22 00:42:57,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376435428] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:57,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135265049] [2022-07-22 00:42:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:57,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:57,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:57,479 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) [2022-07-22 00:42:57,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:42:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:42:57,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135265049] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:57,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:57,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-22 00:42:57,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065580643] [2022-07-22 00:42:57,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:57,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 00:42:57,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:57,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 00:42:57,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:57,592 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:57,650 INFO L93 Difference]: Finished difference Result 180 states and 215 transitions. [2022-07-22 00:42:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 00:42:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2022-07-22 00:42:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:57,651 INFO L225 Difference]: With dead ends: 180 [2022-07-22 00:42:57,651 INFO L226 Difference]: Without dead ends: 175 [2022-07-22 00:42:57,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-07-22 00:42:57,652 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 43 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:57,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 461 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-07-22 00:42:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2022-07-22 00:42:57,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.2116788321167884) internal successors, (166), 141 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-07-22 00:42:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2022-07-22 00:42:57,659 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 33 [2022-07-22 00:42:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:57,659 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2022-07-22 00:42:57,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-22 00:42:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2022-07-22 00:42:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-22 00:42:57,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:57,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:57,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:57,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 00:42:57,879 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1385978691, now seen corresponding path program 1 times [2022-07-22 00:42:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:57,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205442146] [2022-07-22 00:42:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:57,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:57,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205442146] [2022-07-22 00:42:57,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205442146] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:57,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056618928] [2022-07-22 00:42:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:57,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:57,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:57,961 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) [2022-07-22 00:42:57,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:42:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:57,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:42:57,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:58,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:58,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056618928] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:58,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:58,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2022-07-22 00:42:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466679450] [2022-07-22 00:42:58,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:58,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 00:42:58,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 00:42:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-07-22 00:42:58,180 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:58,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:58,408 INFO L93 Difference]: Finished difference Result 299 states and 357 transitions. [2022-07-22 00:42:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 00:42:58,408 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-22 00:42:58,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:58,409 INFO L225 Difference]: With dead ends: 299 [2022-07-22 00:42:58,409 INFO L226 Difference]: Without dead ends: 160 [2022-07-22 00:42:58,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:42:58,410 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 133 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:58,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 500 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:42:58,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-22 00:42:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2022-07-22 00:42:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 123 states have internal predecessors, (140), 17 states have call successors, (17), 11 states have call predecessors, (17), 11 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2022-07-22 00:42:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 174 transitions. [2022-07-22 00:42:58,417 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 174 transitions. Word has length 35 [2022-07-22 00:42:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:58,417 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 174 transitions. [2022-07-22 00:42:58,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 174 transitions. [2022-07-22 00:42:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 00:42:58,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:58,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:58,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:58,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:58,633 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1095335930, now seen corresponding path program 1 times [2022-07-22 00:42:58,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:58,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964434275] [2022-07-22 00:42:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:42:58,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:58,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964434275] [2022-07-22 00:42:58,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964434275] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:58,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682415868] [2022-07-22 00:42:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:58,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:58,657 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) [2022-07-22 00:42:58,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:42:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:58,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:42:58,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:42:58,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:42:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:42:58,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682415868] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:42:58,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:42:58,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 00:42:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111767833] [2022-07-22 00:42:58,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:42:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:42:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:58,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:42:58,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:42:58,738 INFO L87 Difference]: Start difference. First operand 152 states and 174 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:58,797 INFO L93 Difference]: Finished difference Result 291 states and 349 transitions. [2022-07-22 00:42:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:42:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-07-22 00:42:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:58,798 INFO L225 Difference]: With dead ends: 291 [2022-07-22 00:42:58,798 INFO L226 Difference]: Without dead ends: 173 [2022-07-22 00:42:58,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:42:58,799 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:58,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 378 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:42:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-07-22 00:42:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2022-07-22 00:42:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 129 states have (on average 1.1705426356589148) internal successors, (151), 132 states have internal predecessors, (151), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2022-07-22 00:42:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 187 transitions. [2022-07-22 00:42:58,805 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 187 transitions. Word has length 38 [2022-07-22 00:42:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:58,805 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 187 transitions. [2022-07-22 00:42:58,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 187 transitions. [2022-07-22 00:42:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-22 00:42:58,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:58,806 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:58,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:59,022 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,SelfDestructingSolverStorable17 [2022-07-22 00:42:59,023 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:59,023 INFO L85 PathProgramCache]: Analyzing trace with hash -350622166, now seen corresponding path program 1 times [2022-07-22 00:42:59,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:59,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802568177] [2022-07-22 00:42:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:59,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 00:42:59,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:59,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802568177] [2022-07-22 00:42:59,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802568177] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:59,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960146268] [2022-07-22 00:42:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:59,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:59,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:59,084 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) [2022-07-22 00:42:59,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:42:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:59,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 00:42:59,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:42:59,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:42:59,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960146268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:59,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:42:59,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-07-22 00:42:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441321537] [2022-07-22 00:42:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:59,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:42:59,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:59,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:42:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:42:59,223 INFO L87 Difference]: Start difference. First operand 163 states and 187 transitions. Second operand has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:59,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:42:59,333 INFO L93 Difference]: Finished difference Result 189 states and 218 transitions. [2022-07-22 00:42:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:42:59,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-07-22 00:42:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:42:59,334 INFO L225 Difference]: With dead ends: 189 [2022-07-22 00:42:59,334 INFO L226 Difference]: Without dead ends: 188 [2022-07-22 00:42:59,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:42:59,335 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 88 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:42:59,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 192 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:42:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-22 00:42:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 178. [2022-07-22 00:42:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 141 states have (on average 1.177304964539007) internal successors, (166), 144 states have internal predecessors, (166), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-07-22 00:42:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 206 transitions. [2022-07-22 00:42:59,342 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 206 transitions. Word has length 40 [2022-07-22 00:42:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:42:59,342 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 206 transitions. [2022-07-22 00:42:59,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:42:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 206 transitions. [2022-07-22 00:42:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-22 00:42:59,343 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:42:59,343 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:42:59,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:42:59,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:59,560 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:42:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:42:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2015614804, now seen corresponding path program 1 times [2022-07-22 00:42:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:42:59,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092481133] [2022-07-22 00:42:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:42:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:42:59,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:42:59,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092481133] [2022-07-22 00:42:59,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092481133] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:42:59,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423017040] [2022-07-22 00:42:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:42:59,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:42:59,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:42:59,659 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) [2022-07-22 00:42:59,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:42:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:42:59,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-22 00:42:59,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:42:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:42:59,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:42:59,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423017040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:42:59,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:42:59,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2022-07-22 00:42:59,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110835849] [2022-07-22 00:42:59,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:42:59,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:42:59,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:42:59,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:42:59,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-07-22 00:42:59,910 INFO L87 Difference]: Start difference. First operand 178 states and 206 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:43:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:00,032 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2022-07-22 00:43:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 00:43:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-07-22 00:43:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:00,033 INFO L225 Difference]: With dead ends: 185 [2022-07-22 00:43:00,033 INFO L226 Difference]: Without dead ends: 184 [2022-07-22 00:43:00,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:43:00,034 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:00,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 301 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:43:00,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-07-22 00:43:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2022-07-22 00:43:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 141 states have (on average 1.1702127659574468) internal successors, (165), 144 states have internal predecessors, (165), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-07-22 00:43:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2022-07-22 00:43:00,040 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 41 [2022-07-22 00:43:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:00,040 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2022-07-22 00:43:00,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:43:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2022-07-22 00:43:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-22 00:43:00,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:00,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:00,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:00,257 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:00,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash 287216546, now seen corresponding path program 1 times [2022-07-22 00:43:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:00,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840563857] [2022-07-22 00:43:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:43:00,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:00,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840563857] [2022-07-22 00:43:00,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840563857] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:00,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897161279] [2022-07-22 00:43:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:00,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:00,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:00,336 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) [2022-07-22 00:43:00,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:43:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:00,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 00:43:00,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:43:00,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:43:00,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897161279] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:43:00,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:43:00,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-07-22 00:43:00,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772199875] [2022-07-22 00:43:00,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:00,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-22 00:43:00,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:00,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-22 00:43:00,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2022-07-22 00:43:00,561 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-07-22 00:43:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:00,710 INFO L93 Difference]: Finished difference Result 193 states and 223 transitions. [2022-07-22 00:43:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:43:00,711 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 44 [2022-07-22 00:43:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:00,713 INFO L225 Difference]: With dead ends: 193 [2022-07-22 00:43:00,713 INFO L226 Difference]: Without dead ends: 188 [2022-07-22 00:43:00,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2022-07-22 00:43:00,714 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 81 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:00,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 697 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:43:00,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-22 00:43:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-07-22 00:43:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 152 states have internal predecessors, (173), 20 states have call successors, (20), 13 states have call predecessors, (20), 15 states have return successors, (22), 22 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 00:43:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 215 transitions. [2022-07-22 00:43:00,721 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 215 transitions. Word has length 44 [2022-07-22 00:43:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:00,721 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 215 transitions. [2022-07-22 00:43:00,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-07-22 00:43:00,721 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 215 transitions. [2022-07-22 00:43:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-22 00:43:00,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:00,722 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:00,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-22 00:43:00,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-22 00:43:00,935 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1599875706, now seen corresponding path program 2 times [2022-07-22 00:43:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:00,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275469367] [2022-07-22 00:43:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:00,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:43:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:01,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275469367] [2022-07-22 00:43:01,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275469367] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:01,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537356691] [2022-07-22 00:43:01,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:43:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:01,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:01,036 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) [2022-07-22 00:43:01,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:43:01,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:43:01,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:01,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 00:43:01,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:43:01,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:43:01,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537356691] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:43:01,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:43:01,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2022-07-22 00:43:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78878653] [2022-07-22 00:43:01,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:01,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-22 00:43:01,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-22 00:43:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 00:43:01,353 INFO L87 Difference]: Start difference. First operand 188 states and 215 transitions. Second operand has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:43:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:02,699 INFO L93 Difference]: Finished difference Result 323 states and 382 transitions. [2022-07-22 00:43:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-07-22 00:43:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-07-22 00:43:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:02,703 INFO L225 Difference]: With dead ends: 323 [2022-07-22 00:43:02,703 INFO L226 Difference]: Without dead ends: 321 [2022-07-22 00:43:02,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1376, Invalid=6280, Unknown=0, NotChecked=0, Total=7656 [2022-07-22 00:43:02,705 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 749 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:02,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 916 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 00:43:02,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-07-22 00:43:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 294. [2022-07-22 00:43:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 236 states have (on average 1.1228813559322033) internal successors, (265), 237 states have internal predecessors, (265), 33 states have call successors, (33), 21 states have call predecessors, (33), 23 states have return successors, (35), 35 states have call predecessors, (35), 32 states have call successors, (35) [2022-07-22 00:43:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 333 transitions. [2022-07-22 00:43:02,727 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 333 transitions. Word has length 46 [2022-07-22 00:43:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:02,727 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 333 transitions. [2022-07-22 00:43:02,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:43:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 333 transitions. [2022-07-22 00:43:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 00:43:02,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:02,728 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:02,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:02,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-22 00:43:02,944 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2078564830, now seen corresponding path program 2 times [2022-07-22 00:43:02,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:02,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154843967] [2022-07-22 00:43:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-22 00:43:03,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154843967] [2022-07-22 00:43:03,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154843967] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192272110] [2022-07-22 00:43:03,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:43:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:03,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:03,116 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) [2022-07-22 00:43:03,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:43:03,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:43:03,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-22 00:43:03,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-22 00:43:03,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 00:43:03,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192272110] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:43:03,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:43:03,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 31 [2022-07-22 00:43:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574369658] [2022-07-22 00:43:03,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-22 00:43:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:03,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-22 00:43:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2022-07-22 00:43:03,833 INFO L87 Difference]: Start difference. First operand 294 states and 333 transitions. Second operand has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-07-22 00:43:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:04,189 INFO L93 Difference]: Finished difference Result 323 states and 369 transitions. [2022-07-22 00:43:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 00:43:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) Word has length 68 [2022-07-22 00:43:04,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:04,191 INFO L225 Difference]: With dead ends: 323 [2022-07-22 00:43:04,191 INFO L226 Difference]: Without dead ends: 314 [2022-07-22 00:43:04,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=1748, Unknown=0, NotChecked=0, Total=2162 [2022-07-22 00:43:04,192 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 176 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:04,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 851 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:43:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-07-22 00:43:04,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-07-22 00:43:04,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 252 states have (on average 1.1150793650793651) internal successors, (281), 253 states have internal predecessors, (281), 33 states have call successors, (33), 21 states have call predecessors, (33), 27 states have return successors, (39), 39 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-22 00:43:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 353 transitions. [2022-07-22 00:43:04,202 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 353 transitions. Word has length 68 [2022-07-22 00:43:04,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:04,203 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 353 transitions. [2022-07-22 00:43:04,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-07-22 00:43:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 353 transitions. [2022-07-22 00:43:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 00:43:04,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:04,204 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:04,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-22 00:43:04,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-22 00:43:04,420 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash -153968340, now seen corresponding path program 1 times [2022-07-22 00:43:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:04,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361718066] [2022-07-22 00:43:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 00:43:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 00:43:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 00:43:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 00:43:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 72 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-22 00:43:04,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:04,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361718066] [2022-07-22 00:43:04,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361718066] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:04,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246698481] [2022-07-22 00:43:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:04,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:04,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:04,530 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:04,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 00:43:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:04,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-22 00:43:04,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 34 proven. 62 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 00:43:04,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:05,409 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 64 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 00:43:05,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246698481] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:43:05,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:43:05,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 24 [2022-07-22 00:43:05,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923086293] [2022-07-22 00:43:05,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:05,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:43:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:43:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:43:05,411 INFO L87 Difference]: Start difference. First operand 314 states and 353 transitions. Second operand has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-22 00:43:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:05,627 INFO L93 Difference]: Finished difference Result 522 states and 598 transitions. [2022-07-22 00:43:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 00:43:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) Word has length 78 [2022-07-22 00:43:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:05,628 INFO L225 Difference]: With dead ends: 522 [2022-07-22 00:43:05,628 INFO L226 Difference]: Without dead ends: 74 [2022-07-22 00:43:05,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2022-07-22 00:43:05,629 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 124 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:05,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 467 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:43:05,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-22 00:43:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-22 00:43:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.05) internal successors, (63), 60 states have internal predecessors, (63), 4 states have call successors, (4), 3 states have call predecessors, (4), 9 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 00:43:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-07-22 00:43:05,633 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 78 [2022-07-22 00:43:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:05,633 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-07-22 00:43:05,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-22 00:43:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-07-22 00:43:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-22 00:43:05,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:05,634 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:05,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:05,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:05,851 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1185635234, now seen corresponding path program 3 times [2022-07-22 00:43:05,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:05,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243387137] [2022-07-22 00:43:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:05,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 00:43:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-07-22 00:43:06,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:06,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243387137] [2022-07-22 00:43:06,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243387137] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:06,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610900311] [2022-07-22 00:43:06,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:43:06,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:06,185 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:06,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 00:43:06,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:43:06,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:06,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-22 00:43:06,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-07-22 00:43:06,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:10,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610900311] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:10,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:10,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 30 [2022-07-22 00:43:10,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979915466] [2022-07-22 00:43:10,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:10,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-22 00:43:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:10,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-22 00:43:10,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1112, Unknown=1, NotChecked=0, Total=1260 [2022-07-22 00:43:10,198 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 31 states, 30 states have (on average 3.0) internal successors, (90), 30 states have internal predecessors, (90), 5 states have call successors, (6), 2 states have call predecessors, (6), 9 states have return successors, (17), 17 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-22 00:43:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:10,663 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2022-07-22 00:43:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 00:43:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 30 states have internal predecessors, (90), 5 states have call successors, (6), 2 states have call predecessors, (6), 9 states have return successors, (17), 17 states have call predecessors, (17), 4 states have call successors, (17) Word has length 130 [2022-07-22 00:43:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:10,664 INFO L225 Difference]: With dead ends: 83 [2022-07-22 00:43:10,664 INFO L226 Difference]: Without dead ends: 80 [2022-07-22 00:43:10,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 140 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=354, Invalid=2401, Unknown=1, NotChecked=0, Total=2756 [2022-07-22 00:43:10,669 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 105 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:10,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 581 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:43:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-22 00:43:10,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2022-07-22 00:43:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 4 states have call successors, (4), 3 states have call predecessors, (4), 10 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 00:43:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2022-07-22 00:43:10,687 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 130 [2022-07-22 00:43:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:10,688 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2022-07-22 00:43:10,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 30 states have internal predecessors, (90), 5 states have call successors, (6), 2 states have call predecessors, (6), 9 states have return successors, (17), 17 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-22 00:43:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2022-07-22 00:43:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-22 00:43:10,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:10,689 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:10,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:10,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:10,905 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:10,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:10,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1601731370, now seen corresponding path program 4 times [2022-07-22 00:43:10,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:10,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999185476] [2022-07-22 00:43:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:10,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 00:43:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-22 00:43:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999185476] [2022-07-22 00:43:11,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999185476] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351447210] [2022-07-22 00:43:11,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:43:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:11,316 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:11,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 00:43:11,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:43:11,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:11,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-22 00:43:11,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-22 00:43:11,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:13,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351447210] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:13,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:13,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 33 [2022-07-22 00:43:13,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719495996] [2022-07-22 00:43:13,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:13,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-22 00:43:13,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-22 00:43:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1320, Unknown=0, NotChecked=0, Total=1482 [2022-07-22 00:43:13,717 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 34 states, 33 states have (on average 2.9393939393939394) internal successors, (97), 33 states have internal predecessors, (97), 5 states have call successors, (6), 2 states have call predecessors, (6), 10 states have return successors, (19), 19 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-22 00:43:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:14,346 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2022-07-22 00:43:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-22 00:43:14,347 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.9393939393939394) internal successors, (97), 33 states have internal predecessors, (97), 5 states have call successors, (6), 2 states have call predecessors, (6), 10 states have return successors, (19), 19 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2022-07-22 00:43:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:14,348 INFO L225 Difference]: With dead ends: 88 [2022-07-22 00:43:14,348 INFO L226 Difference]: Without dead ends: 85 [2022-07-22 00:43:14,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 152 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=394, Invalid=2912, Unknown=0, NotChecked=0, Total=3306 [2022-07-22 00:43:14,350 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 146 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:14,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 717 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 00:43:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-22 00:43:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2022-07-22 00:43:14,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.0441176470588236) internal successors, (71), 68 states have internal predecessors, (71), 4 states have call successors, (4), 3 states have call predecessors, (4), 11 states have return successors, (12), 12 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-22 00:43:14,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2022-07-22 00:43:14,357 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 142 [2022-07-22 00:43:14,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:14,358 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2022-07-22 00:43:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.9393939393939394) internal successors, (97), 33 states have internal predecessors, (97), 5 states have call successors, (6), 2 states have call predecessors, (6), 10 states have return successors, (19), 19 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-22 00:43:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2022-07-22 00:43:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-22 00:43:14,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:14,359 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:14,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:14,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-22 00:43:14,575 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1100547618, now seen corresponding path program 5 times [2022-07-22 00:43:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:14,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113403632] [2022-07-22 00:43:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 00:43:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-07-22 00:43:15,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:15,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113403632] [2022-07-22 00:43:15,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113403632] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:15,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334510403] [2022-07-22 00:43:15,026 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:43:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:15,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:15,039 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:15,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 00:43:15,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2022-07-22 00:43:15,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:15,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 46 conjunts are in the unsatisfiable core [2022-07-22 00:43:15,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-07-22 00:43:15,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:17,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334510403] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:17,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:17,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2022-07-22 00:43:17,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311691689] [2022-07-22 00:43:17,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:17,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-07-22 00:43:17,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-07-22 00:43:17,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1364, Unknown=0, NotChecked=0, Total=1482 [2022-07-22 00:43:17,128 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 5 states have call successors, (6), 2 states have call predecessors, (6), 11 states have return successors, (21), 21 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-22 00:43:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:17,980 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2022-07-22 00:43:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-22 00:43:17,980 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 5 states have call successors, (6), 2 states have call predecessors, (6), 11 states have return successors, (21), 21 states have call predecessors, (21), 4 states have call successors, (21) Word has length 154 [2022-07-22 00:43:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:17,981 INFO L225 Difference]: With dead ends: 93 [2022-07-22 00:43:17,981 INFO L226 Difference]: Without dead ends: 90 [2022-07-22 00:43:17,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 161 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=334, Invalid=3206, Unknown=0, NotChecked=0, Total=3540 [2022-07-22 00:43:17,982 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 160 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:17,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 793 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 00:43:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-22 00:43:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2022-07-22 00:43:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 72 states have internal predecessors, (75), 4 states have call successors, (4), 3 states have call predecessors, (4), 12 states have return successors, (13), 13 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-22 00:43:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2022-07-22 00:43:17,984 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 154 [2022-07-22 00:43:17,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:17,984 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2022-07-22 00:43:17,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 5 states have call successors, (6), 2 states have call predecessors, (6), 11 states have return successors, (21), 21 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-22 00:43:17,985 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2022-07-22 00:43:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-22 00:43:17,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:17,985 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:18,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:18,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-22 00:43:18,195 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:18,196 INFO L85 PathProgramCache]: Analyzing trace with hash -583518762, now seen corresponding path program 6 times [2022-07-22 00:43:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:18,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546654624] [2022-07-22 00:43:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:18,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-22 00:43:18,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:18,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546654624] [2022-07-22 00:43:18,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546654624] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:18,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994195425] [2022-07-22 00:43:18,711 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:43:18,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:18,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:18,713 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:18,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 00:43:18,866 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2022-07-22 00:43:18,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 46 conjunts are in the unsatisfiable core [2022-07-22 00:43:18,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-22 00:43:19,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:22,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994195425] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:22,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:22,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 39 [2022-07-22 00:43:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050380652] [2022-07-22 00:43:22,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:22,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-07-22 00:43:22,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:22,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-07-22 00:43:22,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2022-07-22 00:43:22,045 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand has 40 states, 39 states have (on average 2.8461538461538463) internal successors, (111), 39 states have internal predecessors, (111), 5 states have call successors, (5), 2 states have call predecessors, (5), 12 states have return successors, (23), 23 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-22 00:43:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:23,132 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-07-22 00:43:23,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 00:43:23,132 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.8461538461538463) internal successors, (111), 39 states have internal predecessors, (111), 5 states have call successors, (5), 2 states have call predecessors, (5), 12 states have return successors, (23), 23 states have call predecessors, (23), 4 states have call successors, (23) Word has length 152 [2022-07-22 00:43:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:23,133 INFO L225 Difference]: With dead ends: 98 [2022-07-22 00:43:23,133 INFO L226 Difference]: Without dead ends: 95 [2022-07-22 00:43:23,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 158 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=474, Invalid=4082, Unknown=0, NotChecked=0, Total=4556 [2022-07-22 00:43:23,134 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 134 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:23,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1024 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 00:43:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-07-22 00:43:23,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2022-07-22 00:43:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 76 states have (on average 1.0394736842105263) internal successors, (79), 76 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 13 states have return successors, (14), 14 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 00:43:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 97 transitions. [2022-07-22 00:43:23,136 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 97 transitions. Word has length 152 [2022-07-22 00:43:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:23,137 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 97 transitions. [2022-07-22 00:43:23,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.8461538461538463) internal successors, (111), 39 states have internal predecessors, (111), 5 states have call successors, (5), 2 states have call predecessors, (5), 12 states have return successors, (23), 23 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-22 00:43:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 97 transitions. [2022-07-22 00:43:23,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-22 00:43:23,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:23,138 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:23,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:23,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-22 00:43:23,354 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1895725022, now seen corresponding path program 7 times [2022-07-22 00:43:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:23,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690047480] [2022-07-22 00:43:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 0 proven. 433 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-22 00:43:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:23,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690047480] [2022-07-22 00:43:23,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690047480] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:23,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365076780] [2022-07-22 00:43:23,951 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-22 00:43:23,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:23,968 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:23,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 00:43:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:24,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-22 00:43:24,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 0 proven. 433 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-22 00:43:24,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:27,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365076780] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:27,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:27,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 42 [2022-07-22 00:43:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729030172] [2022-07-22 00:43:27,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:27,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-07-22 00:43:27,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:27,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-07-22 00:43:27,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=2049, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:43:27,689 INFO L87 Difference]: Start difference. First operand 94 states and 97 transitions. Second operand has 43 states, 42 states have (on average 2.8095238095238093) internal successors, (118), 42 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 13 states have return successors, (25), 25 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-22 00:43:28,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:28,599 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2022-07-22 00:43:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-22 00:43:28,600 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.8095238095238093) internal successors, (118), 42 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 13 states have return successors, (25), 25 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2022-07-22 00:43:28,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:28,600 INFO L225 Difference]: With dead ends: 103 [2022-07-22 00:43:28,600 INFO L226 Difference]: Without dead ends: 100 [2022-07-22 00:43:28,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 170 SyntacticMatches, 11 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=514, Invalid=4742, Unknown=0, NotChecked=0, Total=5256 [2022-07-22 00:43:28,602 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 143 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:28,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1017 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 00:43:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-07-22 00:43:28,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-07-22 00:43:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.0375) internal successors, (83), 80 states have internal predecessors, (83), 4 states have call successors, (4), 3 states have call predecessors, (4), 14 states have return successors, (15), 15 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-22 00:43:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 102 transitions. [2022-07-22 00:43:28,605 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 102 transitions. Word has length 164 [2022-07-22 00:43:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:28,605 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 102 transitions. [2022-07-22 00:43:28,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.8095238095238093) internal successors, (118), 42 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 13 states have return successors, (25), 25 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-22 00:43:28,605 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 102 transitions. [2022-07-22 00:43:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-22 00:43:28,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:28,606 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:28,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:28,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-22 00:43:28,824 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1407733590, now seen corresponding path program 8 times [2022-07-22 00:43:28,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:28,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596140129] [2022-07-22 00:43:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:28,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 0 proven. 502 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-22 00:43:29,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:29,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596140129] [2022-07-22 00:43:29,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596140129] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:29,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074927111] [2022-07-22 00:43:29,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:43:29,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:29,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:29,417 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:29,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 00:43:29,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:43:29,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:29,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-22 00:43:29,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 0 proven. 502 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-22 00:43:30,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:32,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074927111] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:32,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:32,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 45 [2022-07-22 00:43:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180126955] [2022-07-22 00:43:32,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:32,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-22 00:43:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-22 00:43:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2108, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:43:32,662 INFO L87 Difference]: Start difference. First operand 99 states and 102 transitions. Second operand has 46 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 5 states have call successors, (5), 2 states have call predecessors, (5), 14 states have return successors, (27), 27 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-22 00:43:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:33,733 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2022-07-22 00:43:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-22 00:43:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 5 states have call successors, (5), 2 states have call predecessors, (5), 14 states have return successors, (27), 27 states have call predecessors, (27), 4 states have call successors, (27) Word has length 176 [2022-07-22 00:43:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:33,734 INFO L225 Difference]: With dead ends: 108 [2022-07-22 00:43:33,734 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 00:43:33,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 179 SyntacticMatches, 12 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=427, Invalid=5123, Unknown=0, NotChecked=0, Total=5550 [2022-07-22 00:43:33,736 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 199 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:33,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1086 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 00:43:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 00:43:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-07-22 00:43:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 states have internal predecessors, (87), 4 states have call successors, (4), 3 states have call predecessors, (4), 15 states have return successors, (16), 16 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-22 00:43:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2022-07-22 00:43:33,741 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 176 [2022-07-22 00:43:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:33,742 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2022-07-22 00:43:33,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 5 states have call successors, (5), 2 states have call predecessors, (5), 14 states have return successors, (27), 27 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-22 00:43:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2022-07-22 00:43:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-22 00:43:33,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:33,744 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:33,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-07-22 00:43:33,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:33,951 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1969189538, now seen corresponding path program 9 times [2022-07-22 00:43:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:33,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379092427] [2022-07-22 00:43:33,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:33,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2022-07-22 00:43:34,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:34,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379092427] [2022-07-22 00:43:34,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379092427] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:34,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406586208] [2022-07-22 00:43:34,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:43:34,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:34,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:34,668 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:34,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-22 00:43:34,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-07-22 00:43:34,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:34,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 58 conjunts are in the unsatisfiable core [2022-07-22 00:43:34,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2022-07-22 00:43:35,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:38,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406586208] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:38,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:38,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 48 [2022-07-22 00:43:38,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792102524] [2022-07-22 00:43:38,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:38,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-07-22 00:43:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-07-22 00:43:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2392, Unknown=0, NotChecked=0, Total=2550 [2022-07-22 00:43:38,303 INFO L87 Difference]: Start difference. First operand 104 states and 107 transitions. Second operand has 49 states, 48 states have (on average 2.75) internal successors, (132), 48 states have internal predecessors, (132), 5 states have call successors, (5), 2 states have call predecessors, (5), 15 states have return successors, (29), 29 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-22 00:43:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:39,981 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2022-07-22 00:43:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-22 00:43:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.75) internal successors, (132), 48 states have internal predecessors, (132), 5 states have call successors, (5), 2 states have call predecessors, (5), 15 states have return successors, (29), 29 states have call predecessors, (29), 4 states have call successors, (29) Word has length 188 [2022-07-22 00:43:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:39,982 INFO L225 Difference]: With dead ends: 113 [2022-07-22 00:43:39,982 INFO L226 Difference]: Without dead ends: 110 [2022-07-22 00:43:39,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 191 SyntacticMatches, 13 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=458, Invalid=5862, Unknown=0, NotChecked=0, Total=6320 [2022-07-22 00:43:39,984 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 213 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:39,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1101 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:43:39,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-22 00:43:39,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2022-07-22 00:43:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.0340909090909092) internal successors, (91), 88 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 16 states have return successors, (17), 17 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-22 00:43:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 112 transitions. [2022-07-22 00:43:39,986 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 112 transitions. Word has length 188 [2022-07-22 00:43:39,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:39,986 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 112 transitions. [2022-07-22 00:43:39,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.75) internal successors, (132), 48 states have internal predecessors, (132), 5 states have call successors, (5), 2 states have call predecessors, (5), 15 states have return successors, (29), 29 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-22 00:43:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 112 transitions. [2022-07-22 00:43:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-22 00:43:39,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:39,989 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:40,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:40,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:40,199 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1413173590, now seen corresponding path program 10 times [2022-07-22 00:43:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:40,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642888975] [2022-07-22 00:43:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 00:43:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 0 proven. 859 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-07-22 00:43:41,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:41,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642888975] [2022-07-22 00:43:41,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642888975] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:41,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603383235] [2022-07-22 00:43:41,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:43:41,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:41,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:41,036 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:41,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-22 00:43:41,419 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:43:41,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:41,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-22 00:43:41,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 0 proven. 859 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-07-22 00:43:42,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603383235] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:44,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:44,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 51 [2022-07-22 00:43:44,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891374152] [2022-07-22 00:43:44,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:44,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-07-22 00:43:44,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:44,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-07-22 00:43:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=2694, Unknown=0, NotChecked=0, Total=2862 [2022-07-22 00:43:44,866 INFO L87 Difference]: Start difference. First operand 109 states and 112 transitions. Second operand has 52 states, 51 states have (on average 2.7254901960784315) internal successors, (139), 51 states have internal predecessors, (139), 5 states have call successors, (6), 2 states have call predecessors, (6), 16 states have return successors, (31), 31 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-22 00:43:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:46,523 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2022-07-22 00:43:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-22 00:43:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.7254901960784315) internal successors, (139), 51 states have internal predecessors, (139), 5 states have call successors, (6), 2 states have call predecessors, (6), 16 states have return successors, (31), 31 states have call predecessors, (31), 4 states have call successors, (31) Word has length 214 [2022-07-22 00:43:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:46,524 INFO L225 Difference]: With dead ends: 118 [2022-07-22 00:43:46,524 INFO L226 Difference]: Without dead ends: 115 [2022-07-22 00:43:46,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 221 SyntacticMatches, 14 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=489, Invalid=6651, Unknown=0, NotChecked=0, Total=7140 [2022-07-22 00:43:46,525 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 174 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:46,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1380 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:43:46,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-22 00:43:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2022-07-22 00:43:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 92 states have internal predecessors, (95), 4 states have call successors, (4), 3 states have call predecessors, (4), 17 states have return successors, (18), 18 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 00:43:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2022-07-22 00:43:46,528 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 214 [2022-07-22 00:43:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:46,528 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2022-07-22 00:43:46,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.7254901960784315) internal successors, (139), 51 states have internal predecessors, (139), 5 states have call successors, (6), 2 states have call predecessors, (6), 16 states have return successors, (31), 31 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-22 00:43:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2022-07-22 00:43:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-22 00:43:46,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:46,529 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:46,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-22 00:43:46,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:46,729 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1244183842, now seen corresponding path program 11 times [2022-07-22 00:43:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:46,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410304036] [2022-07-22 00:43:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:46,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:43:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:46,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 739 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-07-22 00:43:47,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:47,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410304036] [2022-07-22 00:43:47,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410304036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:47,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900145904] [2022-07-22 00:43:47,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:43:47,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:47,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:47,620 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:47,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 00:43:48,049 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2022-07-22 00:43:48,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:48,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-22 00:43:48,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 739 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-07-22 00:43:49,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:43:53,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900145904] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:53,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:43:53,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 54 [2022-07-22 00:43:53,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185102528] [2022-07-22 00:43:53,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:43:53,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-07-22 00:43:53,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:43:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-07-22 00:43:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3014, Unknown=0, NotChecked=0, Total=3192 [2022-07-22 00:43:53,641 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 55 states, 54 states have (on average 2.7037037037037037) internal successors, (146), 54 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 17 states have return successors, (33), 33 states have call predecessors, (33), 4 states have call successors, (33) [2022-07-22 00:43:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:43:55,725 INFO L93 Difference]: Finished difference Result 123 states and 127 transitions. [2022-07-22 00:43:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-22 00:43:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 2.7037037037037037) internal successors, (146), 54 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 17 states have return successors, (33), 33 states have call predecessors, (33), 4 states have call successors, (33) Word has length 212 [2022-07-22 00:43:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:43:55,726 INFO L225 Difference]: With dead ends: 123 [2022-07-22 00:43:55,726 INFO L226 Difference]: Without dead ends: 120 [2022-07-22 00:43:55,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 215 SyntacticMatches, 15 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1404 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=520, Invalid=7490, Unknown=0, NotChecked=0, Total=8010 [2022-07-22 00:43:55,727 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 185 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:43:55,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1577 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 00:43:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-22 00:43:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2022-07-22 00:43:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.03125) internal successors, (99), 96 states have internal predecessors, (99), 4 states have call successors, (4), 3 states have call predecessors, (4), 18 states have return successors, (19), 19 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-22 00:43:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2022-07-22 00:43:55,729 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 212 [2022-07-22 00:43:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:43:55,730 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2022-07-22 00:43:55,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 2.7037037037037037) internal successors, (146), 54 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 17 states have return successors, (33), 33 states have call predecessors, (33), 4 states have call successors, (33) [2022-07-22 00:43:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2022-07-22 00:43:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-22 00:43:55,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:43:55,731 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 17, 17, 17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:43:55,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-07-22 00:43:55,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:55,947 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:43:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:43:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash -454350122, now seen corresponding path program 12 times [2022-07-22 00:43:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:43:55,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71526040] [2022-07-22 00:43:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:43:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:43:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:43:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 00:43:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:43:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:43:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1937 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2022-07-22 00:43:56,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:43:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71526040] [2022-07-22 00:43:56,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71526040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:43:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004861678] [2022-07-22 00:43:56,945 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:43:56,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:43:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:43:56,957 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:43:56,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-22 00:43:57,405 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2022-07-22 00:43:57,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:43:57,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-22 00:43:57,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:43:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1937 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2022-07-22 00:43:58,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:04,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004861678] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:04,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:44:04,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 57 [2022-07-22 00:44:04,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600176330] [2022-07-22 00:44:04,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:04,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-07-22 00:44:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-07-22 00:44:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3352, Unknown=0, NotChecked=0, Total=3540 [2022-07-22 00:44:04,188 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand has 58 states, 57 states have (on average 2.6842105263157894) internal successors, (153), 57 states have internal predecessors, (153), 5 states have call successors, (6), 2 states have call predecessors, (6), 18 states have return successors, (35), 35 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-22 00:44:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:06,190 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2022-07-22 00:44:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-07-22 00:44:06,190 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 2.6842105263157894) internal successors, (153), 57 states have internal predecessors, (153), 5 states have call successors, (6), 2 states have call predecessors, (6), 18 states have return successors, (35), 35 states have call predecessors, (35), 4 states have call successors, (35) Word has length 238 [2022-07-22 00:44:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:06,191 INFO L225 Difference]: With dead ends: 128 [2022-07-22 00:44:06,191 INFO L226 Difference]: Without dead ends: 125 [2022-07-22 00:44:06,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 245 SyntacticMatches, 16 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1577 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=551, Invalid=8379, Unknown=0, NotChecked=0, Total=8930 [2022-07-22 00:44:06,192 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 252 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 3411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:06,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1476 Invalid, 3411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 00:44:06,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-22 00:44:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2022-07-22 00:44:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 100 states have (on average 1.03) internal successors, (103), 100 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 19 states have return successors, (20), 20 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-22 00:44:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 127 transitions. [2022-07-22 00:44:06,195 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 127 transitions. Word has length 238 [2022-07-22 00:44:06,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:06,195 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 127 transitions. [2022-07-22 00:44:06,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 2.6842105263157894) internal successors, (153), 57 states have internal predecessors, (153), 5 states have call successors, (6), 2 states have call predecessors, (6), 18 states have return successors, (35), 35 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-22 00:44:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 127 transitions. [2022-07-22 00:44:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-22 00:44:06,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:06,197 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:06,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-07-22 00:44:06,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:06,411 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:44:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1020958814, now seen corresponding path program 13 times [2022-07-22 00:44:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:06,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539598668] [2022-07-22 00:44:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:06,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:44:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:44:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 922 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2022-07-22 00:44:07,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:07,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539598668] [2022-07-22 00:44:07,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539598668] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:07,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184900124] [2022-07-22 00:44:07,429 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-22 00:44:07,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:07,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:07,430 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:44:07,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-22 00:44:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-22 00:44:07,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:09,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 922 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2022-07-22 00:44:09,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:13,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184900124] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:13,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:44:13,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 60 [2022-07-22 00:44:13,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663289556] [2022-07-22 00:44:13,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:13,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-07-22 00:44:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-07-22 00:44:13,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=3708, Unknown=0, NotChecked=0, Total=3906 [2022-07-22 00:44:13,691 INFO L87 Difference]: Start difference. First operand 124 states and 127 transitions. Second operand has 61 states, 60 states have (on average 2.6666666666666665) internal successors, (160), 60 states have internal predecessors, (160), 5 states have call successors, (5), 2 states have call predecessors, (5), 19 states have return successors, (37), 37 states have call predecessors, (37), 4 states have call successors, (37) [2022-07-22 00:44:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:15,657 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2022-07-22 00:44:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-07-22 00:44:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 2.6666666666666665) internal successors, (160), 60 states have internal predecessors, (160), 5 states have call successors, (5), 2 states have call predecessors, (5), 19 states have return successors, (37), 37 states have call predecessors, (37), 4 states have call successors, (37) Word has length 236 [2022-07-22 00:44:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:15,671 INFO L225 Difference]: With dead ends: 133 [2022-07-22 00:44:15,672 INFO L226 Difference]: Without dead ends: 130 [2022-07-22 00:44:15,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 239 SyntacticMatches, 17 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=582, Invalid=9318, Unknown=0, NotChecked=0, Total=9900 [2022-07-22 00:44:15,676 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 205 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:15,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1767 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 00:44:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-22 00:44:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2022-07-22 00:44:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.0288461538461537) internal successors, (107), 104 states have internal predecessors, (107), 4 states have call successors, (4), 3 states have call predecessors, (4), 20 states have return successors, (21), 21 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 00:44:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 132 transitions. [2022-07-22 00:44:15,686 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 132 transitions. Word has length 236 [2022-07-22 00:44:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:15,686 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 132 transitions. [2022-07-22 00:44:15,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 2.6666666666666665) internal successors, (160), 60 states have internal predecessors, (160), 5 states have call successors, (5), 2 states have call predecessors, (5), 19 states have return successors, (37), 37 states have call predecessors, (37), 4 states have call successors, (37) [2022-07-22 00:44:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 132 transitions. [2022-07-22 00:44:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-22 00:44:15,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:15,687 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:15,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:15,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-07-22 00:44:15,906 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:44:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1916511274, now seen corresponding path program 14 times [2022-07-22 00:44:15,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:15,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347761719] [2022-07-22 00:44:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:44:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:44:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:44:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2110 backedges. 0 proven. 1021 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2022-07-22 00:44:17,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:17,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347761719] [2022-07-22 00:44:17,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347761719] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:17,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939297526] [2022-07-22 00:44:17,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:44:17,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:17,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:17,112 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:44:17,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-22 00:44:17,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:44:17,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:17,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 78 conjunts are in the unsatisfiable core [2022-07-22 00:44:17,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2110 backedges. 0 proven. 1021 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2022-07-22 00:44:18,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:17,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939297526] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:17,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:46:17,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 63 [2022-07-22 00:46:17,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128448914] [2022-07-22 00:46:17,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:17,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-22 00:46:17,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-22 00:46:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=4328, Unknown=52, NotChecked=0, Total=4692 [2022-07-22 00:46:17,950 INFO L87 Difference]: Start difference. First operand 129 states and 132 transitions. Second operand has 64 states, 63 states have (on average 2.6507936507936507) internal successors, (167), 63 states have internal predecessors, (167), 5 states have call successors, (5), 2 states have call predecessors, (5), 20 states have return successors, (39), 39 states have call predecessors, (39), 4 states have call successors, (39) [2022-07-22 00:46:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:20,976 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2022-07-22 00:46:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-22 00:46:20,976 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.6507936507936507) internal successors, (167), 63 states have internal predecessors, (167), 5 states have call successors, (5), 2 states have call predecessors, (5), 20 states have return successors, (39), 39 states have call predecessors, (39), 4 states have call successors, (39) Word has length 248 [2022-07-22 00:46:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:20,977 INFO L225 Difference]: With dead ends: 138 [2022-07-22 00:46:20,977 INFO L226 Difference]: Without dead ends: 135 [2022-07-22 00:46:20,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 254 SyntacticMatches, 18 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2093 ImplicationChecksByTransitivity, 113.3s TimeCoverageRelationStatistics Valid=794, Invalid=10710, Unknown=52, NotChecked=0, Total=11556 [2022-07-22 00:46:20,979 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 277 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 3879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:20,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 2005 Invalid, 3879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 00:46:20,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-07-22 00:46:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2022-07-22 00:46:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.0277777777777777) internal successors, (111), 108 states have internal predecessors, (111), 4 states have call successors, (4), 3 states have call predecessors, (4), 21 states have return successors, (22), 22 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-22 00:46:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 137 transitions. [2022-07-22 00:46:20,981 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 137 transitions. Word has length 248 [2022-07-22 00:46:20,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:20,982 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 137 transitions. [2022-07-22 00:46:20,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.6507936507936507) internal successors, (167), 63 states have internal predecessors, (167), 5 states have call successors, (5), 2 states have call predecessors, (5), 20 states have return successors, (39), 39 states have call predecessors, (39), 4 states have call successors, (39) [2022-07-22 00:46:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 137 transitions. [2022-07-22 00:46:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-22 00:46:20,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:20,983 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:21,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:21,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-07-22 00:46:21,183 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:46:21,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:21,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2082304546, now seen corresponding path program 15 times [2022-07-22 00:46:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:21,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321494342] [2022-07-22 00:46:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:21,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:46:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:46:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2341 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked. [2022-07-22 00:46:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:22,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321494342] [2022-07-22 00:46:22,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321494342] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:22,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652391232] [2022-07-22 00:46:22,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:46:22,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:22,783 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:46:22,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-22 00:46:23,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2022-07-22 00:46:23,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:46:23,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-22 00:46:23,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2341 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked. [2022-07-22 00:46:25,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:34,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652391232] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:34,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:46:34,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 66 [2022-07-22 00:46:34,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378814242] [2022-07-22 00:46:34,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:34,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-07-22 00:46:34,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:34,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-07-22 00:46:34,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=4474, Unknown=0, NotChecked=0, Total=4692 [2022-07-22 00:46:34,609 INFO L87 Difference]: Start difference. First operand 134 states and 137 transitions. Second operand has 67 states, 66 states have (on average 2.6363636363636362) internal successors, (174), 66 states have internal predecessors, (174), 5 states have call successors, (5), 2 states have call predecessors, (5), 21 states have return successors, (41), 41 states have call predecessors, (41), 4 states have call successors, (41) [2022-07-22 00:46:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:37,834 INFO L93 Difference]: Finished difference Result 143 states and 147 transitions. [2022-07-22 00:46:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-22 00:46:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 2.6363636363636362) internal successors, (174), 66 states have internal predecessors, (174), 5 states have call successors, (5), 2 states have call predecessors, (5), 21 states have return successors, (41), 41 states have call predecessors, (41), 4 states have call successors, (41) Word has length 260 [2022-07-22 00:46:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:37,835 INFO L225 Difference]: With dead ends: 143 [2022-07-22 00:46:37,835 INFO L226 Difference]: Without dead ends: 140 [2022-07-22 00:46:37,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 263 SyntacticMatches, 19 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2156 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=644, Invalid=11346, Unknown=0, NotChecked=0, Total=11990 [2022-07-22 00:46:37,837 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 290 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 4010 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 4010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:37,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1879 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 4010 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-22 00:46:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-07-22 00:46:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-07-22 00:46:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 112 states have (on average 1.0267857142857142) internal successors, (115), 112 states have internal predecessors, (115), 4 states have call successors, (4), 3 states have call predecessors, (4), 22 states have return successors, (23), 23 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-22 00:46:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 142 transitions. [2022-07-22 00:46:37,840 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 142 transitions. Word has length 260 [2022-07-22 00:46:37,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:37,840 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 142 transitions. [2022-07-22 00:46:37,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 2.6363636363636362) internal successors, (174), 66 states have internal predecessors, (174), 5 states have call successors, (5), 2 states have call predecessors, (5), 21 states have return successors, (41), 41 states have call predecessors, (41), 4 states have call successors, (41) [2022-07-22 00:46:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 142 transitions. [2022-07-22 00:46:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-22 00:46:37,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:37,842 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:37,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:38,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-07-22 00:46:38,051 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:46:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash -306776746, now seen corresponding path program 16 times [2022-07-22 00:46:38,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:38,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712054696] [2022-07-22 00:46:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:38,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:46:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:46:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 0 proven. 1234 refuted. 0 times theorem prover too weak. 1350 trivial. 0 not checked. [2022-07-22 00:46:39,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:39,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712054696] [2022-07-22 00:46:39,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712054696] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:39,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597136163] [2022-07-22 00:46:39,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:46:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:39,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:39,462 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:46:39,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-22 00:46:40,255 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:46:40,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:46:40,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 86 conjunts are in the unsatisfiable core [2022-07-22 00:46:40,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 0 proven. 1234 refuted. 0 times theorem prover too weak. 1350 trivial. 0 not checked. [2022-07-22 00:46:42,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:51,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597136163] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:51,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:46:51,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 69 [2022-07-22 00:46:51,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400783441] [2022-07-22 00:46:51,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:51,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-07-22 00:46:51,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:51,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-07-22 00:46:51,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=4884, Unknown=0, NotChecked=0, Total=5112 [2022-07-22 00:46:51,473 INFO L87 Difference]: Start difference. First operand 139 states and 142 transitions. Second operand has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 69 states have internal predecessors, (181), 5 states have call successors, (5), 2 states have call predecessors, (5), 22 states have return successors, (43), 43 states have call predecessors, (43), 4 states have call successors, (43) [2022-07-22 00:46:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:54,356 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions. [2022-07-22 00:46:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-22 00:46:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 69 states have internal predecessors, (181), 5 states have call successors, (5), 2 states have call predecessors, (5), 22 states have return successors, (43), 43 states have call predecessors, (43), 4 states have call successors, (43) Word has length 272 [2022-07-22 00:46:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:54,357 INFO L225 Difference]: With dead ends: 148 [2022-07-22 00:46:54,357 INFO L226 Difference]: Without dead ends: 145 [2022-07-22 00:46:54,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 275 SyntacticMatches, 20 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2369 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=675, Invalid=12435, Unknown=0, NotChecked=0, Total=13110 [2022-07-22 00:46:54,359 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 233 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 4606 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 4756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 4606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:54,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 2439 Invalid, 4756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 4606 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 00:46:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-07-22 00:46:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2022-07-22 00:46:54,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 116 states have (on average 1.0258620689655173) internal successors, (119), 116 states have internal predecessors, (119), 4 states have call successors, (4), 3 states have call predecessors, (4), 23 states have return successors, (24), 24 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-22 00:46:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2022-07-22 00:46:54,362 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 272 [2022-07-22 00:46:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:54,362 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2022-07-22 00:46:54,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 69 states have internal predecessors, (181), 5 states have call successors, (5), 2 states have call predecessors, (5), 22 states have return successors, (43), 43 states have call predecessors, (43), 4 states have call successors, (43) [2022-07-22 00:46:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2022-07-22 00:46:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-22 00:46:54,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:54,365 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:54,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:54,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:54,575 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:46:54,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1993923746, now seen corresponding path program 17 times [2022-07-22 00:46:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:54,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953727806] [2022-07-22 00:46:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:54,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:46:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:46:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:46:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2839 backedges. 0 proven. 1348 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2022-07-22 00:46:56,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:56,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953727806] [2022-07-22 00:46:56,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953727806] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:56,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549648127] [2022-07-22 00:46:56,047 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:46:56,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:56,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:56,048 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:46:56,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-07-22 00:46:57,000 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-07-22 00:46:57,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:46:57,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 90 conjunts are in the unsatisfiable core [2022-07-22 00:46:57,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2839 backedges. 0 proven. 1348 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2022-07-22 00:46:59,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:09,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549648127] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:09,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:47:09,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 72 [2022-07-22 00:47:09,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874631992] [2022-07-22 00:47:09,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:09,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-07-22 00:47:09,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:09,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-07-22 00:47:09,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=5312, Unknown=0, NotChecked=0, Total=5550 [2022-07-22 00:47:09,620 INFO L87 Difference]: Start difference. First operand 144 states and 147 transitions. Second operand has 73 states, 72 states have (on average 2.611111111111111) internal successors, (188), 72 states have internal predecessors, (188), 5 states have call successors, (5), 2 states have call predecessors, (5), 23 states have return successors, (45), 45 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-22 00:47:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:12,659 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2022-07-22 00:47:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-07-22 00:47:12,660 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 2.611111111111111) internal successors, (188), 72 states have internal predecessors, (188), 5 states have call successors, (5), 2 states have call predecessors, (5), 23 states have return successors, (45), 45 states have call predecessors, (45), 4 states have call successors, (45) Word has length 284 [2022-07-22 00:47:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:12,661 INFO L225 Difference]: With dead ends: 153 [2022-07-22 00:47:12,661 INFO L226 Difference]: Without dead ends: 150 [2022-07-22 00:47:12,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 287 SyntacticMatches, 21 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2592 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=706, Invalid=13574, Unknown=0, NotChecked=0, Total=14280 [2022-07-22 00:47:12,663 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 245 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 5128 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 5285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 5128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:12,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 2413 Invalid, 5285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 5128 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-22 00:47:12,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-22 00:47:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-07-22 00:47:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 120 states have (on average 1.025) internal successors, (123), 120 states have internal predecessors, (123), 4 states have call successors, (4), 3 states have call predecessors, (4), 24 states have return successors, (25), 25 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-22 00:47:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 152 transitions. [2022-07-22 00:47:12,672 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 152 transitions. Word has length 284 [2022-07-22 00:47:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:12,672 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 152 transitions. [2022-07-22 00:47:12,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 2.611111111111111) internal successors, (188), 72 states have internal predecessors, (188), 5 states have call successors, (5), 2 states have call predecessors, (5), 23 states have return successors, (45), 45 states have call predecessors, (45), 4 states have call successors, (45) [2022-07-22 00:47:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 152 transitions. [2022-07-22 00:47:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-22 00:47:12,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:12,674 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:47:12,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:12,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-07-22 00:47:12,896 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-07-22 00:47:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1392103722, now seen corresponding path program 18 times [2022-07-22 00:47:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:12,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561934937] [2022-07-22 00:47:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 00:47:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:47:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 00:47:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 0 proven. 1467 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2022-07-22 00:47:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:14,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561934937] [2022-07-22 00:47:14,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561934937] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:14,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73306400] [2022-07-22 00:47:14,452 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:47:14,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:14,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:14,453 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:47:14,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-22 00:47:15,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 24 check-sat command(s) [2022-07-22 00:47:15,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:47:15,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 94 conjunts are in the unsatisfiable core [2022-07-22 00:47:15,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 0 proven. 1467 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2022-07-22 00:47:17,456 INFO L328 TraceCheckSpWp]: Computing backward predicates...