./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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/Addition03-1.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 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:51:20,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:51:20,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:51:20,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:51:20,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:51:20,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:51:20,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:51:20,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:51:20,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:51:20,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:51:20,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:51:20,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:51:20,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:51:20,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:51:20,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:51:20,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:51:20,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:51:20,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:51:20,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:51:20,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:51:20,418 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:51:20,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:51:20,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:51:20,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:51:20,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:51:20,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:51:20,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:51:20,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:51:20,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:51:20,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:51:20,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:51:20,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:51:20,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:51:20,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:51:20,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:51:20,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:51:20,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:51:20,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:51:20,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:51:20,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:51:20,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:51:20,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:51:20,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:51:20,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:51:20,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:51:20,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:51:20,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:51:20,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:51:20,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:51:20,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:51:20,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:51:20,468 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:51:20,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:51:20,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:51:20,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:51:20,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:51:20,470 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:51:20,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:51:20,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:51:20,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:51:20,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:51:20,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:51:20,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:51:20,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:51:20,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:51:20,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:51:20,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:51:20,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:51:20,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:51:20,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:51:20,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:51:20,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2022-07-14 13:51:20,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:51:20,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:51:20,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:51:20,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:51:20,723 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:51:20,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2022-07-14 13:51:20,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bc5cb7c/10711450972443cf8c601939b5d5d8f8/FLAG9e7258537 [2022-07-14 13:51:21,136 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:51:21,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2022-07-14 13:51:21,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bc5cb7c/10711450972443cf8c601939b5d5d8f8/FLAG9e7258537 [2022-07-14 13:51:21,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bc5cb7c/10711450972443cf8c601939b5d5d8f8 [2022-07-14 13:51:21,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:51:21,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:51:21,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:51:21,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:51:21,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:51:21,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc4e29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21, skipping insertion in model container [2022-07-14 13:51:21,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:51:21,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:51:21,730 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/Addition03-1.c[840,853] [2022-07-14 13:51:21,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:51:21,738 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:51:21,762 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/Addition03-1.c[840,853] [2022-07-14 13:51:21,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:51:21,778 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:51:21,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21 WrapperNode [2022-07-14 13:51:21,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:51:21,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:51:21,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:51:21,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:51:21,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,811 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-07-14 13:51:21,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:51:21,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:51:21,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:51:21,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:51:21,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:51:21,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:51:21,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:51:21,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:51:21,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (1/1) ... [2022-07-14 13:51:21,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:51:21,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:21,896 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) [2022-07-14 13:51:21,901 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 [2022-07-14 13:51:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:51:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:51:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:51:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:51:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-07-14 13:51:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-07-14 13:51:21,978 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:51:21,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:51:22,076 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:51:22,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:51:22,083 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 13:51:22,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:51:22 BoogieIcfgContainer [2022-07-14 13:51:22,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:51:22,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:51:22,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:51:22,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:51:22,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:51:21" (1/3) ... [2022-07-14 13:51:22,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6b3231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:51:22, skipping insertion in model container [2022-07-14 13:51:22,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:21" (2/3) ... [2022-07-14 13:51:22,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6b3231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:51:22, skipping insertion in model container [2022-07-14 13:51:22,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:51:22" (3/3) ... [2022-07-14 13:51:22,091 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2022-07-14 13:51:22,104 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:51:22,105 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 13:51:22,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:51:22,167 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@52056526, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46c48336 [2022-07-14 13:51:22,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-14 13:51:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 13:51:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 13:51:22,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:22,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:22,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2022-07-14 13:51:22,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:22,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623263585] [2022-07-14 13:51:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:22,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:22,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:22,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623263585] [2022-07-14 13:51:22,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623263585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:22,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:22,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:51:22,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188666848] [2022-07-14 13:51:22,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:22,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:22,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:51:22,447 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:22,585 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-07-14 13:51:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:51:22,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 13:51:22,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:22,593 INFO L225 Difference]: With dead ends: 64 [2022-07-14 13:51:22,593 INFO L226 Difference]: Without dead ends: 45 [2022-07-14 13:51:22,595 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 [2022-07-14 13:51:22,598 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:22,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-14 13:51:22,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2022-07-14 13:51:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-07-14 13:51:22,635 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2022-07-14 13:51:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:22,635 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-07-14 13:51:22,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-07-14 13:51:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 13:51:22,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:22,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:51:22,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2022-07-14 13:51:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:22,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559040118] [2022-07-14 13:51:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:22,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:22,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559040118] [2022-07-14 13:51:22,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559040118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:22,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:22,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:51:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779466314] [2022-07-14 13:51:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:22,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:22,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:22,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:51:22,680 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:22,725 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2022-07-14 13:51:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:51:22,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 13:51:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:22,727 INFO L225 Difference]: With dead ends: 67 [2022-07-14 13:51:22,727 INFO L226 Difference]: Without dead ends: 65 [2022-07-14 13:51:22,727 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 [2022-07-14 13:51:22,728 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:22,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-14 13:51:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-07-14 13:51:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2022-07-14 13:51:22,738 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2022-07-14 13:51:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:22,738 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2022-07-14 13:51:22,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-07-14 13:51:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:51:22,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:22,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:22,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:51:22,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2022-07-14 13:51:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:22,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23411187] [2022-07-14 13:51:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:22,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:22,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23411187] [2022-07-14 13:51:22,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23411187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:22,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:22,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:51:22,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351034570] [2022-07-14 13:51:22,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:22,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:22,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:51:22,785 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:22,834 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2022-07-14 13:51:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:51:22,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:51:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:22,835 INFO L225 Difference]: With dead ends: 64 [2022-07-14 13:51:22,835 INFO L226 Difference]: Without dead ends: 62 [2022-07-14 13:51:22,836 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 [2022-07-14 13:51:22,837 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:22,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-14 13:51:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2022-07-14 13:51:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-07-14 13:51:22,846 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 9 [2022-07-14 13:51:22,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:22,847 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-07-14 13:51:22,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-07-14 13:51:22,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 13:51:22,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:22,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:22,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:51:22,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2022-07-14 13:51:22,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:22,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195823376] [2022-07-14 13:51:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:22,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:22,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195823376] [2022-07-14 13:51:22,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195823376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:22,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:22,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:51:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635247432] [2022-07-14 13:51:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:22,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:51:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:51:22,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:51:22,880 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:22,896 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-07-14 13:51:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:51:22,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-14 13:51:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:22,897 INFO L225 Difference]: With dead ends: 52 [2022-07-14 13:51:22,897 INFO L226 Difference]: Without dead ends: 51 [2022-07-14 13:51:22,898 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 [2022-07-14 13:51:22,899 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:22,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-14 13:51:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-14 13:51:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-07-14 13:51:22,908 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2022-07-14 13:51:22,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:22,909 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-07-14 13:51:22,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:22,909 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-07-14 13:51:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 13:51:22,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:22,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:22,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:51:22,910 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:22,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1895634472, now seen corresponding path program 1 times [2022-07-14 13:51:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:22,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901896593] [2022-07-14 13:51:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:22,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:22,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901896593] [2022-07-14 13:51:22,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901896593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:22,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:22,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:51:22,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568676468] [2022-07-14 13:51:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:22,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:22,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:22,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:22,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:51:22,952 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:23,022 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-07-14 13:51:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:51:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 13:51:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:23,024 INFO L225 Difference]: With dead ends: 63 [2022-07-14 13:51:23,027 INFO L226 Difference]: Without dead ends: 62 [2022-07-14 13:51:23,027 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 [2022-07-14 13:51:23,028 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:23,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 47 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-14 13:51:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2022-07-14 13:51:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-07-14 13:51:23,047 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 11 [2022-07-14 13:51:23,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:23,047 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-07-14 13:51:23,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,048 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-07-14 13:51:23,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 13:51:23,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:23,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:23,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 13:51:23,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:23,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1032977456, now seen corresponding path program 1 times [2022-07-14 13:51:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:23,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370558362] [2022-07-14 13:51:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:23,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:23,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370558362] [2022-07-14 13:51:23,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370558362] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:23,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569218306] [2022-07-14 13:51:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:23,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:23,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:23,143 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) [2022-07-14 13:51:23,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:51:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:23,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 13:51:23,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:23,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:23,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569218306] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:23,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:23,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-14 13:51:23,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534243089] [2022-07-14 13:51:23,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:23,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:51:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:23,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:51:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:51:23,358 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:23,515 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2022-07-14 13:51:23,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 13:51:23,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 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 15 [2022-07-14 13:51:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:23,518 INFO L225 Difference]: With dead ends: 162 [2022-07-14 13:51:23,518 INFO L226 Difference]: Without dead ends: 160 [2022-07-14 13:51:23,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:51:23,519 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 216 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:23,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 123 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-14 13:51:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2022-07-14 13:51:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.297029702970297) internal successors, (131), 108 states have internal predecessors, (131), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2022-07-14 13:51:23,535 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 15 [2022-07-14 13:51:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:23,536 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2022-07-14 13:51:23,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2022-07-14 13:51:23,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:51:23,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:23,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:23,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:23,747 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,SelfDestructingSolverStorable5 [2022-07-14 13:51:23,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:23,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2082106057, now seen corresponding path program 1 times [2022-07-14 13:51:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:23,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410113410] [2022-07-14 13:51:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:23,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:23,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410113410] [2022-07-14 13:51:23,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410113410] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:23,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232265920] [2022-07-14 13:51:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:23,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:23,807 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) [2022-07-14 13:51:23,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:51:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:23,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:51:23,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:23,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:23,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:51:23,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232265920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:23,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:51:23,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-07-14 13:51:23,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047668375] [2022-07-14 13:51:23,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:23,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:23,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:23,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:23,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:51:23,897 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-07-14 13:51:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:23,940 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2022-07-14 13:51:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 13:51:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 17 [2022-07-14 13:51:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:23,942 INFO L225 Difference]: With dead ends: 165 [2022-07-14 13:51:23,942 INFO L226 Difference]: Without dead ends: 105 [2022-07-14 13:51:23,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:51:23,944 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:23,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 47 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-14 13:51:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 79. [2022-07-14 13:51:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 70 states have internal predecessors, (80), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2022-07-14 13:51:23,954 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 17 [2022-07-14 13:51:23,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:23,954 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2022-07-14 13:51:23,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-07-14 13:51:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-07-14 13:51:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 13:51:23,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:23,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:23,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:24,171 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,SelfDestructingSolverStorable6 [2022-07-14 13:51:24,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:24,172 INFO L85 PathProgramCache]: Analyzing trace with hash -120438652, now seen corresponding path program 1 times [2022-07-14 13:51:24,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:24,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507986421] [2022-07-14 13:51:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:24,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:24,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:24,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507986421] [2022-07-14 13:51:24,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507986421] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:24,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420472187] [2022-07-14 13:51:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:24,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:24,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:24,233 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) [2022-07-14 13:51:24,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:51:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:24,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 13:51:24,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:24,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:24,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420472187] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:24,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:24,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-14 13:51:24,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699578953] [2022-07-14 13:51:24,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:24,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:51:24,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:51:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:51:24,350 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:24,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:24,462 INFO L93 Difference]: Finished difference Result 178 states and 198 transitions. [2022-07-14 13:51:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 13:51:24,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 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 18 [2022-07-14 13:51:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:24,464 INFO L225 Difference]: With dead ends: 178 [2022-07-14 13:51:24,464 INFO L226 Difference]: Without dead ends: 177 [2022-07-14 13:51:24,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:51:24,467 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 126 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:24,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 93 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:24,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-14 13:51:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 160. [2022-07-14 13:51:24,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.158273381294964) internal successors, (161), 142 states have internal predecessors, (161), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 178 transitions. [2022-07-14 13:51:24,504 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 178 transitions. Word has length 18 [2022-07-14 13:51:24,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:24,504 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 178 transitions. [2022-07-14 13:51:24,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 178 transitions. [2022-07-14 13:51:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 13:51:24,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:24,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:24,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:24,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:24,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 40289813, now seen corresponding path program 1 times [2022-07-14 13:51:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:24,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801971040] [2022-07-14 13:51:24,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:24,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801971040] [2022-07-14 13:51:24,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801971040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:51:24,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:51:24,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:51:24,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263733356] [2022-07-14 13:51:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:51:24,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:51:24,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:51:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:51:24,766 INFO L87 Difference]: Start difference. First operand 160 states and 178 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:24,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:24,797 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2022-07-14 13:51:24,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:51:24,798 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 13:51:24,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:24,798 INFO L225 Difference]: With dead ends: 161 [2022-07-14 13:51:24,799 INFO L226 Difference]: Without dead ends: 80 [2022-07-14 13:51:24,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:51:24,802 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:24,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:51:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-14 13:51:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-07-14 13:51:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 70 states have internal predecessors, (72), 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) [2022-07-14 13:51:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2022-07-14 13:51:24,812 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 19 [2022-07-14 13:51:24,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:24,813 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2022-07-14 13:51:24,813 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2022-07-14 13:51:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 13:51:24,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:24,819 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:51:24,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 13:51:24,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:24,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1543096729, now seen corresponding path program 2 times [2022-07-14 13:51:24,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:24,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563004376] [2022-07-14 13:51:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:24,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:24,957 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:24,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:24,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563004376] [2022-07-14 13:51:24,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563004376] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:24,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653446531] [2022-07-14 13:51:24,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:51:24,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:24,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:24,960 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) [2022-07-14 13:51:24,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:51:24,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:51:24,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:24,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 13:51:24,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:25,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:25,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653446531] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:25,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:25,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-14 13:51:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222349636] [2022-07-14 13:51:25,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:25,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 13:51:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:25,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 13:51:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:51:25,216 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:25,409 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2022-07-14 13:51:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 13:51:25,410 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-07-14 13:51:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:25,412 INFO L225 Difference]: With dead ends: 133 [2022-07-14 13:51:25,413 INFO L226 Difference]: Without dead ends: 132 [2022-07-14 13:51:25,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 13:51:25,415 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 280 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:25,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 126 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-07-14 13:51:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2022-07-14 13:51:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.027027027027027) internal successors, (114), 112 states have internal predecessors, (114), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2022-07-14 13:51:25,427 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 39 [2022-07-14 13:51:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:25,427 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2022-07-14 13:51:25,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2022-07-14 13:51:25,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 13:51:25,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:25,430 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:51:25,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:25,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:25,643 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1653811754, now seen corresponding path program 2 times [2022-07-14 13:51:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:25,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276618542] [2022-07-14 13:51:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:25,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:25,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276618542] [2022-07-14 13:51:25,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276618542] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:25,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153245460] [2022-07-14 13:51:25,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:51:25,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:25,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:25,771 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) [2022-07-14 13:51:25,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:51:25,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:51:25,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:25,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 13:51:25,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:25,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:26,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153245460] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:26,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:26,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-14 13:51:26,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466682523] [2022-07-14 13:51:26,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:26,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 13:51:26,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:26,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 13:51:26,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:51:26,067 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:26,258 INFO L93 Difference]: Finished difference Result 186 states and 192 transitions. [2022-07-14 13:51:26,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 13:51:26,259 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-14 13:51:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:26,259 INFO L225 Difference]: With dead ends: 186 [2022-07-14 13:51:26,260 INFO L226 Difference]: Without dead ends: 185 [2022-07-14 13:51:26,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 13:51:26,261 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 261 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:26,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 147 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-14 13:51:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2022-07-14 13:51:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.0188679245283019) internal successors, (162), 160 states have internal predecessors, (162), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2022-07-14 13:51:26,273 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 45 [2022-07-14 13:51:26,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:26,274 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2022-07-14 13:51:26,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:26,274 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2022-07-14 13:51:26,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 13:51:26,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:26,275 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-14 13:51:26,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:26,497 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,SelfDestructingSolverStorable10 [2022-07-14 13:51:26,498 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:26,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2009773099, now seen corresponding path program 3 times [2022-07-14 13:51:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:26,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733481208] [2022-07-14 13:51:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:26,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:26,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:26,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733481208] [2022-07-14 13:51:26,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733481208] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:26,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384463095] [2022-07-14 13:51:26,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:51:26,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:26,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:26,800 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) [2022-07-14 13:51:26,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:51:26,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-14 13:51:26,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:26,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-14 13:51:26,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:26,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:27,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384463095] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:27,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:27,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-14 13:51:27,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602033637] [2022-07-14 13:51:27,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:27,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-14 13:51:27,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:27,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-14 13:51:27,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 13:51:27,548 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:28,075 INFO L93 Difference]: Finished difference Result 283 states and 295 transitions. [2022-07-14 13:51:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-14 13:51:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-14 13:51:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:28,077 INFO L225 Difference]: With dead ends: 283 [2022-07-14 13:51:28,077 INFO L226 Difference]: Without dead ends: 282 [2022-07-14 13:51:28,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-07-14 13:51:28,080 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 665 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:28,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 210 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:28,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-07-14 13:51:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2022-07-14 13:51:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 243 states have (on average 1.0123456790123457) internal successors, (246), 244 states have internal predecessors, (246), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 279 transitions. [2022-07-14 13:51:28,097 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 279 transitions. Word has length 87 [2022-07-14 13:51:28,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:28,098 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 279 transitions. [2022-07-14 13:51:28,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:28,098 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 279 transitions. [2022-07-14 13:51:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-14 13:51:28,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:28,100 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-14 13:51:28,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:28,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:28,324 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:28,324 INFO L85 PathProgramCache]: Analyzing trace with hash -192044778, now seen corresponding path program 3 times [2022-07-14 13:51:28,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:28,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937343499] [2022-07-14 13:51:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:28,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:28,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:28,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937343499] [2022-07-14 13:51:28,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937343499] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:28,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250822525] [2022-07-14 13:51:28,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:51:28,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:28,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:28,596 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) [2022-07-14 13:51:28,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 13:51:28,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-14 13:51:28,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:28,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-14 13:51:28,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:28,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:29,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250822525] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:29,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:29,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-14 13:51:29,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098465783] [2022-07-14 13:51:29,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:29,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-14 13:51:29,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:29,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-14 13:51:29,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 13:51:29,345 INFO L87 Difference]: Start difference. First operand 278 states and 279 transitions. Second operand has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:29,852 INFO L93 Difference]: Finished difference Result 390 states and 402 transitions. [2022-07-14 13:51:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-14 13:51:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-14 13:51:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:29,855 INFO L225 Difference]: With dead ends: 390 [2022-07-14 13:51:29,855 INFO L226 Difference]: Without dead ends: 389 [2022-07-14 13:51:29,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-07-14 13:51:29,857 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 664 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:29,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 271 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:51:29,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-07-14 13:51:29,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 386. [2022-07-14 13:51:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 339 states have (on average 1.008849557522124) internal successors, (342), 340 states have internal predecessors, (342), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2022-07-14 13:51:29,875 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 99 [2022-07-14 13:51:29,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:29,876 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2022-07-14 13:51:29,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2022-07-14 13:51:29,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 13:51:29,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:29,878 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-14 13:51:29,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:30,092 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1051592015, now seen corresponding path program 4 times [2022-07-14 13:51:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:30,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005433597] [2022-07-14 13:51:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:30,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:30,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005433597] [2022-07-14 13:51:30,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005433597] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545426138] [2022-07-14 13:51:30,947 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:51:30,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:30,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:30,952 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) [2022-07-14 13:51:30,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 13:51:31,029 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:51:31,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:31,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-14 13:51:31,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:31,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:32,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545426138] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:32,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:32,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-14 13:51:32,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17163397] [2022-07-14 13:51:32,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:32,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-14 13:51:32,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-14 13:51:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-14 13:51:32,959 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:34,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:34,486 INFO L93 Difference]: Finished difference Result 583 states and 607 transitions. [2022-07-14 13:51:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-14 13:51:34,487 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-07-14 13:51:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:34,490 INFO L225 Difference]: With dead ends: 583 [2022-07-14 13:51:34,490 INFO L226 Difference]: Without dead ends: 582 [2022-07-14 13:51:34,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-07-14 13:51:34,495 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1594 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:34,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 402 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:51:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-07-14 13:51:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2022-07-14 13:51:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 507 states have (on average 1.0059171597633136) internal successors, (510), 508 states have internal predecessors, (510), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 579 transitions. [2022-07-14 13:51:34,520 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 579 transitions. Word has length 183 [2022-07-14 13:51:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:34,520 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 579 transitions. [2022-07-14 13:51:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 579 transitions. [2022-07-14 13:51:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-14 13:51:34,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:34,523 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-14 13:51:34,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:34,739 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,SelfDestructingSolverStorable13 [2022-07-14 13:51:34,740 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 82864022, now seen corresponding path program 4 times [2022-07-14 13:51:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:34,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978782127] [2022-07-14 13:51:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:35,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978782127] [2022-07-14 13:51:35,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978782127] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248817214] [2022-07-14 13:51:35,588 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:51:35,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:35,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:35,589 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) [2022-07-14 13:51:35,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 13:51:35,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:51:35,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:35,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-14 13:51:35,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:35,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:37,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248817214] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:37,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:37,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-14 13:51:37,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581119216] [2022-07-14 13:51:37,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:37,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-14 13:51:37,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:37,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-14 13:51:37,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-14 13:51:37,674 INFO L87 Difference]: Start difference. First operand 578 states and 579 transitions. Second operand has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:39,280 INFO L93 Difference]: Finished difference Result 798 states and 822 transitions. [2022-07-14 13:51:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-14 13:51:39,280 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-07-14 13:51:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:39,284 INFO L225 Difference]: With dead ends: 798 [2022-07-14 13:51:39,284 INFO L226 Difference]: Without dead ends: 797 [2022-07-14 13:51:39,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-07-14 13:51:39,289 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1357 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:39,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 513 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:51:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-07-14 13:51:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 794. [2022-07-14 13:51:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 699 states have (on average 1.0042918454935623) internal successors, (702), 700 states have internal predecessors, (702), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 795 transitions. [2022-07-14 13:51:39,324 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 795 transitions. Word has length 207 [2022-07-14 13:51:39,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:39,325 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 795 transitions. [2022-07-14 13:51:39,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 795 transitions. [2022-07-14 13:51:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-07-14 13:51:39,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:39,331 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-14 13:51:39,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:39,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-14 13:51:39,548 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1806002281, now seen corresponding path program 5 times [2022-07-14 13:51:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:39,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326447300] [2022-07-14 13:51:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:42,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:42,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326447300] [2022-07-14 13:51:42,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326447300] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:42,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083607821] [2022-07-14 13:51:42,102 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-14 13:51:42,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:42,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:42,108 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) [2022-07-14 13:51:42,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 13:51:42,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-14 13:51:42,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:42,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-14 13:51:42,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:42,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:51:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:48,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083607821] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:51:48,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:51:48,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-14 13:51:48,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897347576] [2022-07-14 13:51:48,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:51:48,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-14 13:51:48,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:51:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-14 13:51:48,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-14 13:51:48,684 INFO L87 Difference]: Start difference. First operand 794 states and 795 transitions. Second operand has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:51:54,941 INFO L93 Difference]: Finished difference Result 1183 states and 1231 transitions. [2022-07-14 13:51:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-14 13:51:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2022-07-14 13:51:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:51:54,945 INFO L225 Difference]: With dead ends: 1183 [2022-07-14 13:51:54,945 INFO L226 Difference]: Without dead ends: 1182 [2022-07-14 13:51:54,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-07-14 13:51:54,952 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3094 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 13:51:54,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 792 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 13:51:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-07-14 13:51:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1178. [2022-07-14 13:51:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1035 states have (on average 1.0028985507246377) internal successors, (1038), 1036 states have internal predecessors, (1038), 141 states have call successors, (141), 141 states have call predecessors, (141), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1179 transitions. [2022-07-14 13:51:55,004 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1179 transitions. Word has length 375 [2022-07-14 13:51:55,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:51:55,005 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1179 transitions. [2022-07-14 13:51:55,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:51:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1179 transitions. [2022-07-14 13:51:55,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-07-14 13:51:55,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:55,012 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-14 13:51:55,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 13:51:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 13:51:55,236 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:51:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1533719702, now seen corresponding path program 5 times [2022-07-14 13:51:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:55,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589115354] [2022-07-14 13:51:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:51:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:57,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:51:57,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589115354] [2022-07-14 13:51:57,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589115354] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:51:57,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150639393] [2022-07-14 13:51:57,828 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-14 13:51:57,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:51:57,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:57,832 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) [2022-07-14 13:51:57,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 13:51:58,015 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-14 13:51:58,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:51:58,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-14 13:51:58,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:51:58,521 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:51:58,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:52:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:04,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150639393] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:52:04,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:52:04,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-14 13:52:04,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779036284] [2022-07-14 13:52:04,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:52:04,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-14 13:52:04,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:52:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-14 13:52:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-14 13:52:04,864 INFO L87 Difference]: Start difference. First operand 1178 states and 1179 transitions. Second operand has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:52:11,627 INFO L93 Difference]: Finished difference Result 1614 states and 1662 transitions. [2022-07-14 13:52:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-14 13:52:11,628 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2022-07-14 13:52:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:52:11,633 INFO L225 Difference]: With dead ends: 1614 [2022-07-14 13:52:11,633 INFO L226 Difference]: Without dead ends: 1613 [2022-07-14 13:52:11,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1034 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-07-14 13:52:11,638 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3651 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 13:52:11,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3651 Valid, 1009 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 13:52:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-07-14 13:52:11,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1610. [2022-07-14 13:52:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1419 states have (on average 1.0021141649048626) internal successors, (1422), 1420 states have internal predecessors, (1422), 189 states have call successors, (189), 189 states have call predecessors, (189), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1611 transitions. [2022-07-14 13:52:11,708 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1611 transitions. Word has length 423 [2022-07-14 13:52:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:52:11,709 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 1611 transitions. [2022-07-14 13:52:11,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1611 transitions. [2022-07-14 13:52:11,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-14 13:52:11,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:52:11,727 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-14 13:52:11,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 13:52:11,951 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,SelfDestructingSolverStorable16 [2022-07-14 13:52:11,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:52:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:52:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash -910916647, now seen corresponding path program 6 times [2022-07-14 13:52:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:52:11,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168439601] [2022-07-14 13:52:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:52:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:52:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:52:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:21,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:52:21,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168439601] [2022-07-14 13:52:21,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168439601] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:52:21,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86903040] [2022-07-14 13:52:21,489 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-14 13:52:21,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:52:21,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:52:21,492 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) [2022-07-14 13:52:21,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 13:52:21,906 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-14 13:52:21,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:52:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-14 13:52:21,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:52:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:22,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:52:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:46,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86903040] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:52:46,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:52:46,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-14 13:52:46,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985547544] [2022-07-14 13:52:46,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:52:46,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-14 13:52:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:52:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-14 13:52:46,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-14 13:52:46,650 INFO L87 Difference]: Start difference. First operand 1610 states and 1611 transitions. Second operand has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:53:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:25,665 INFO L93 Difference]: Finished difference Result 2383 states and 2479 transitions. [2022-07-14 13:53:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-14 13:53:25,667 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 759 [2022-07-14 13:53:25,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:25,675 INFO L225 Difference]: With dead ends: 2383 [2022-07-14 13:53:25,675 INFO L226 Difference]: Without dead ends: 2382 [2022-07-14 13:53:25,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1898 GetRequests, 1326 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 48.2s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-07-14 13:53:25,693 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6314 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:25,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 1566 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 13:53:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2022-07-14 13:53:25,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2378. [2022-07-14 13:53:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2091 states have (on average 1.0014347202295553) internal successors, (2094), 2092 states have internal predecessors, (2094), 285 states have call successors, (285), 285 states have call predecessors, (285), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:53:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2379 transitions. [2022-07-14 13:53:25,845 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2379 transitions. Word has length 759 [2022-07-14 13:53:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:25,847 INFO L495 AbstractCegarLoop]: Abstraction has 2378 states and 2379 transitions. [2022-07-14 13:53:25,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:53:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2379 transitions. [2022-07-14 13:53:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2022-07-14 13:53:25,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:25,856 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-14 13:53:25,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 13:53:26,070 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,SelfDestructingSolverStorable17 [2022-07-14 13:53:26,070 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:53:26,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash -793620842, now seen corresponding path program 6 times [2022-07-14 13:53:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:26,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113416328] [2022-07-14 13:53:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:26,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:36,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:36,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113416328] [2022-07-14 13:53:36,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113416328] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:53:36,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68781227] [2022-07-14 13:53:36,121 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-14 13:53:36,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:53:36,124 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) [2022-07-14 13:53:36,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 13:53:36,568 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-14 13:53:36,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:53:36,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-14 13:53:36,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:53:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:37,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:54:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:54:02,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68781227] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:54:02,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:54:02,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-14 13:54:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534029818] [2022-07-14 13:54:02,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:54:02,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-14 13:54:02,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:54:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-14 13:54:02,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-14 13:54:02,887 INFO L87 Difference]: Start difference. First operand 2378 states and 2379 transitions. Second operand has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:54:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:54:46,267 INFO L93 Difference]: Finished difference Result 3246 states and 3342 transitions. [2022-07-14 13:54:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-14 13:54:46,268 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 855 [2022-07-14 13:54:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:54:46,278 INFO L225 Difference]: With dead ends: 3246 [2022-07-14 13:54:46,278 INFO L226 Difference]: Without dead ends: 3245 [2022-07-14 13:54:46,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2090 GetRequests, 1518 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 50.8s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-07-14 13:54:46,300 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7116 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7116 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:54:46,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7116 Valid, 1966 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 13:54:46,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-07-14 13:54:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3242. [2022-07-14 13:54:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 2859 states have (on average 1.0010493179433368) internal successors, (2862), 2860 states have internal predecessors, (2862), 381 states have call successors, (381), 381 states have call predecessors, (381), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:54:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 3243 transitions. [2022-07-14 13:54:46,440 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 3243 transitions. Word has length 855 [2022-07-14 13:54:46,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:54:46,441 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 3243 transitions. [2022-07-14 13:54:46,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:54:46,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 3243 transitions. [2022-07-14 13:54:46,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2022-07-14 13:54:46,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:54:46,461 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2022-07-14 13:54:46,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 13:54:46,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:54:46,675 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 13:54:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:54:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash -210519367, now seen corresponding path program 7 times [2022-07-14 13:54:46,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:54:46,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121212637] [2022-07-14 13:54:46,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:54:46,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:54:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat