/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:27:46,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:27:46,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:27:46,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:27:46,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:27:46,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:27:46,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:27:46,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:27:46,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:27:46,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:27:46,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:27:46,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:27:46,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:27:46,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:27:46,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:27:46,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:27:46,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:27:46,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:27:46,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:27:46,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:27:46,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:27:46,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:27:46,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:27:46,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:27:46,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:27:46,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:27:46,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:27:46,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:27:46,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:27:46,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:27:46,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:27:46,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:27:46,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:27:46,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:27:46,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:27:46,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:27:46,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:27:46,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:27:46,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:27:46,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:27:46,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:27:46,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:27:46,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:27:46,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:27:46,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:27:46,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:27:46,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:27:46,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:27:46,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:27:46,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:27:46,279 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:27:46,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:27:46,281 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:27:46,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:27:46,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:27:46,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:27:46,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:27:46,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:27:46,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:27:46,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:27:46,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:27:46,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:27:46,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:27:46,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:27:46,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:27:46,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:27:46,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:27:46,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:27:46,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:27:46,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:27:46,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:27:46,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:27:46,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:27:46,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:27:46,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:27:46,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:27:46,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:27:46,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:27:46,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:27:46,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:27:46,698 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:27:46,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2022-10-16 14:27:46,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ce86647/be3168d061694586af300d01739197fa/FLAG9d04b8c51 [2022-10-16 14:27:47,368 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:27:47,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2022-10-16 14:27:47,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ce86647/be3168d061694586af300d01739197fa/FLAG9d04b8c51 [2022-10-16 14:27:47,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ce86647/be3168d061694586af300d01739197fa [2022-10-16 14:27:47,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:27:47,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:27:47,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:27:47,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:27:47,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:27:47,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:47,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b987fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47, skipping insertion in model container [2022-10-16 14:27:47,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:47,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:27:47,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:27:47,911 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/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2022-10-16 14:27:47,915 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/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2022-10-16 14:27:47,918 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/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2022-10-16 14:27:47,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:27:47,932 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:27:47,950 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/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2022-10-16 14:27:47,952 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/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2022-10-16 14:27:47,955 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/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2022-10-16 14:27:47,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:27:47,975 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:27:47,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47 WrapperNode [2022-10-16 14:27:47,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:27:47,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:27:47,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:27:47,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:27:47,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:47,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,021 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 83 [2022-10-16 14:27:48,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:27:48,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:27:48,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:27:48,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:27:48,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:27:48,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:27:48,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:27:48,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:27:48,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (1/1) ... [2022-10-16 14:27:48,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:27:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:48,093 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) [2022-10-16 14:27:48,112 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 [2022-10-16 14:27:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:27:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:27:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:27:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:27:48,248 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:27:48,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:27:48,480 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:27:48,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:27:48,493 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:27:48,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:48 BoogieIcfgContainer [2022-10-16 14:27:48,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:27:48,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:27:48,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:27:48,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:27:48,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:27:47" (1/3) ... [2022-10-16 14:27:48,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5588ab1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:48, skipping insertion in model container [2022-10-16 14:27:48,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:47" (2/3) ... [2022-10-16 14:27:48,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5588ab1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:48, skipping insertion in model container [2022-10-16 14:27:48,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:48" (3/3) ... [2022-10-16 14:27:48,528 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2022-10-16 14:27:48,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:27:48,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 14:27:48,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:27:48,688 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bb4d7f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:27:48,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 14:27:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:27:48,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:48,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:27:48,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:48,761 INFO L85 PathProgramCache]: Analyzing trace with hash 28696772, now seen corresponding path program 1 times [2022-10-16 14:27:48,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:48,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189225386] [2022-10-16 14:27:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:49,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:49,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189225386] [2022-10-16 14:27:49,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189225386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:49,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:49,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:27:49,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987009566] [2022-10-16 14:27:49,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:49,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:27:49,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:27:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:27:49,110 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:49,191 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2022-10-16 14:27:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:27:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:27:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:49,212 INFO L225 Difference]: With dead ends: 114 [2022-10-16 14:27:49,213 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:27:49,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:27:49,227 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 31 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:49,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:27:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2022-10-16 14:27:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.625) internal successors, (65), 55 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2022-10-16 14:27:49,300 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 5 [2022-10-16 14:27:49,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:49,301 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2022-10-16 14:27:49,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-10-16 14:27:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:27:49,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:49,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:27:49,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:27:49,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:49,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:49,305 INFO L85 PathProgramCache]: Analyzing trace with hash 28694788, now seen corresponding path program 1 times [2022-10-16 14:27:49,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:49,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558657062] [2022-10-16 14:27:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:49,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:49,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:49,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558657062] [2022-10-16 14:27:49,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558657062] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:49,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:49,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:27:49,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347274794] [2022-10-16 14:27:49,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:49,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:27:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:27:49,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:27:49,418 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:49,475 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-10-16 14:27:49,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:27:49,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:27:49,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:49,478 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:27:49,478 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:27:49,479 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 [2022-10-16 14:27:49,480 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:49,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 18 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:27:49,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 14:27:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.5) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-10-16 14:27:49,491 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 5 [2022-10-16 14:27:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:49,492 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-10-16 14:27:49,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-10-16 14:27:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:27:49,493 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:49,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:27:49,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:27:49,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash 889538471, now seen corresponding path program 1 times [2022-10-16 14:27:49,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:49,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648412989] [2022-10-16 14:27:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:49,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648412989] [2022-10-16 14:27:49,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648412989] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:49,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:49,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:27:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466541798] [2022-10-16 14:27:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:49,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:27:49,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:49,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:27:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:27:49,557 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:49,649 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2022-10-16 14:27:49,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:27:49,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 14:27:49,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:49,651 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:27:49,651 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 14:27:49,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:27:49,658 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 79 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:49,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 26 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:27:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 14:27:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2022-10-16 14:27:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-16 14:27:49,691 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 6 [2022-10-16 14:27:49,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:49,692 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-16 14:27:49,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-16 14:27:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:27:49,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:49,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:49,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:27:49,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1805888870, now seen corresponding path program 1 times [2022-10-16 14:27:49,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:49,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493616318] [2022-10-16 14:27:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:49,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:49,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:49,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493616318] [2022-10-16 14:27:49,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493616318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:49,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:49,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:27:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919417381] [2022-10-16 14:27:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:49,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:27:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:49,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:27:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:27:49,828 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:49,890 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-10-16 14:27:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:27:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:27:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:49,892 INFO L225 Difference]: With dead ends: 77 [2022-10-16 14:27:49,892 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:27:49,893 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 [2022-10-16 14:27:49,895 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:49,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:27:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2022-10-16 14:27:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 64 states have (on average 1.25) internal successors, (80), 71 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2022-10-16 14:27:49,919 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 7 [2022-10-16 14:27:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:49,919 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2022-10-16 14:27:49,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2022-10-16 14:27:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:27:49,921 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:49,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:49,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:27:49,922 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1052238273, now seen corresponding path program 1 times [2022-10-16 14:27:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:49,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011697768] [2022-10-16 14:27:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:49,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:50,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:50,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011697768] [2022-10-16 14:27:50,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011697768] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:50,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:50,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:27:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407925024] [2022-10-16 14:27:50,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:50,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:27:50,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:50,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:27:50,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:27:50,043 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:50,117 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2022-10-16 14:27:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:27:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 14:27:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:50,124 INFO L225 Difference]: With dead ends: 149 [2022-10-16 14:27:50,124 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 14:27:50,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:27:50,133 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 41 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:50,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 75 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 14:27:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2022-10-16 14:27:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 97 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2022-10-16 14:27:50,160 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 25 [2022-10-16 14:27:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:50,161 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2022-10-16 14:27:50,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2022-10-16 14:27:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 14:27:50,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:50,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:50,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:27:50,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash -878112566, now seen corresponding path program 1 times [2022-10-16 14:27:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:50,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180662275] [2022-10-16 14:27:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:50,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:50,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180662275] [2022-10-16 14:27:50,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180662275] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:50,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004434339] [2022-10-16 14:27:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:50,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:50,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:50,359 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) [2022-10-16 14:27:50,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:27:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:50,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:27:50,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:50,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:27:50,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004434339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:50,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:27:50,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 14:27:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604121095] [2022-10-16 14:27:50,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:50,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:27:50,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:27:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:27:50,532 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:50,560 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions. [2022-10-16 14:27:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:27:50,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 14:27:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:50,562 INFO L225 Difference]: With dead ends: 102 [2022-10-16 14:27:50,562 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 14:27:50,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:27:50,565 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:50,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 14:27:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2022-10-16 14:27:50,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.2) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2022-10-16 14:27:50,577 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 31 [2022-10-16 14:27:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:50,577 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2022-10-16 14:27:50,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2022-10-16 14:27:50,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:27:50,579 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:50,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:50,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:27:50,794 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 [2022-10-16 14:27:50,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:50,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2057212525, now seen corresponding path program 1 times [2022-10-16 14:27:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:50,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218965233] [2022-10-16 14:27:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:50,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:51,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:51,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218965233] [2022-10-16 14:27:51,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218965233] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:51,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900327070] [2022-10-16 14:27:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:51,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:51,002 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) [2022-10-16 14:27:51,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:27:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:51,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:27:51,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:51,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:27:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:51,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900327070] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:27:51,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:27:51,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 14:27:51,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078908438] [2022-10-16 14:27:51,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:27:51,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:27:51,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:51,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:27:51,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:27:51,209 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:51,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:51,266 INFO L93 Difference]: Finished difference Result 257 states and 284 transitions. [2022-10-16 14:27:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:27:51,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 14:27:51,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:51,269 INFO L225 Difference]: With dead ends: 257 [2022-10-16 14:27:51,269 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 14:27:51,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:27:51,271 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 126 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:51,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 139 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:51,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 14:27:51,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 184. [2022-10-16 14:27:51,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 178 states have (on average 1.1573033707865168) internal successors, (206), 183 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 206 transitions. [2022-10-16 14:27:51,291 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 206 transitions. Word has length 39 [2022-10-16 14:27:51,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:51,291 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 206 transitions. [2022-10-16 14:27:51,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 206 transitions. [2022-10-16 14:27:51,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 14:27:51,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:51,295 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:51,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:27:51,508 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 [2022-10-16 14:27:51,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash -842445597, now seen corresponding path program 2 times [2022-10-16 14:27:51,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:51,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374240684] [2022-10-16 14:27:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:51,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 21 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:51,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:51,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374240684] [2022-10-16 14:27:51,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374240684] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:51,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307938641] [2022-10-16 14:27:51,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:27:51,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:51,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:51,935 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) [2022-10-16 14:27:51,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:27:52,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:27:52,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:27:52,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:27:52,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 21 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:52,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:27:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 21 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:52,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307938641] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:27:52,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:27:52,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-10-16 14:27:52,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140695053] [2022-10-16 14:27:52,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:27:52,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:27:52,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:52,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:27:52,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:27:52,409 INFO L87 Difference]: Start difference. First operand 184 states and 206 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:52,468 INFO L93 Difference]: Finished difference Result 364 states and 391 transitions. [2022-10-16 14:27:52,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:27:52,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 14:27:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:52,474 INFO L225 Difference]: With dead ends: 364 [2022-10-16 14:27:52,474 INFO L226 Difference]: Without dead ends: 268 [2022-10-16 14:27:52,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 182 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:27:52,478 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 174 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:52,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 159 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-10-16 14:27:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 240. [2022-10-16 14:27:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 234 states have (on average 1.1538461538461537) internal successors, (270), 239 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 270 transitions. [2022-10-16 14:27:52,511 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 270 transitions. Word has length 95 [2022-10-16 14:27:52,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:52,512 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 270 transitions. [2022-10-16 14:27:52,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 270 transitions. [2022-10-16 14:27:52,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 14:27:52,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:52,517 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:52,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 14:27:52,732 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 [2022-10-16 14:27:52,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:52,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash -557716853, now seen corresponding path program 3 times [2022-10-16 14:27:52,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:52,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95719347] [2022-10-16 14:27:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:52,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-16 14:27:52,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:52,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95719347] [2022-10-16 14:27:52,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95719347] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:52,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065168075] [2022-10-16 14:27:52,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:27:52,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:52,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:52,932 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) [2022-10-16 14:27:52,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:27:53,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:27:53,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:27:53,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:27:53,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-16 14:27:53,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:27:53,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065168075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:53,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:27:53,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-16 14:27:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961575490] [2022-10-16 14:27:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:53,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:27:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:27:53,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:27:53,487 INFO L87 Difference]: Start difference. First operand 240 states and 270 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:53,537 INFO L93 Difference]: Finished difference Result 240 states and 270 transitions. [2022-10-16 14:27:53,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:27:53,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-10-16 14:27:53,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:53,540 INFO L225 Difference]: With dead ends: 240 [2022-10-16 14:27:53,540 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 14:27:53,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:27:53,541 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:53,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 14:27:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2022-10-16 14:27:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 1.0815450643776825) internal successors, (252), 235 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 252 transitions. [2022-10-16 14:27:53,575 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 252 transitions. Word has length 123 [2022-10-16 14:27:53,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:53,575 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 252 transitions. [2022-10-16 14:27:53,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,577 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 252 transitions. [2022-10-16 14:27:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 14:27:53,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:53,584 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:53,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:27:53,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:53,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:53,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash -109353176, now seen corresponding path program 1 times [2022-10-16 14:27:53,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:53,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570741477] [2022-10-16 14:27:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:53,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-16 14:27:53,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:53,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570741477] [2022-10-16 14:27:53,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570741477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:27:53,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:27:53,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:27:53,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691424394] [2022-10-16 14:27:53,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:27:53,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:27:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:27:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:27:53,915 INFO L87 Difference]: Start difference. First operand 236 states and 252 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:53,950 INFO L93 Difference]: Finished difference Result 236 states and 252 transitions. [2022-10-16 14:27:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:27:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-16 14:27:53,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:53,953 INFO L225 Difference]: With dead ends: 236 [2022-10-16 14:27:53,954 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 14:27:53,954 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 [2022-10-16 14:27:53,956 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:53,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 14 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 14:27:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-10-16 14:27:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0128755364806867) internal successors, (236), 233 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 236 transitions. [2022-10-16 14:27:53,971 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 236 transitions. Word has length 124 [2022-10-16 14:27:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:53,971 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 236 transitions. [2022-10-16 14:27:53,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 236 transitions. [2022-10-16 14:27:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 14:27:53,988 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:53,988 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:53,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:27:53,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash 710691177, now seen corresponding path program 1 times [2022-10-16 14:27:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:53,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242881721] [2022-10-16 14:27:53,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:53,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 0 proven. 865 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2022-10-16 14:27:54,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:54,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242881721] [2022-10-16 14:27:54,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242881721] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:54,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907019191] [2022-10-16 14:27:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:54,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:54,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:54,282 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) [2022-10-16 14:27:54,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:27:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:54,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:27:54,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 0 proven. 865 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2022-10-16 14:27:54,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:27:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 0 proven. 865 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2022-10-16 14:27:55,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907019191] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:27:55,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:27:55,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 14:27:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765690331] [2022-10-16 14:27:55,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:27:55,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:27:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:27:55,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:27:55,034 INFO L87 Difference]: Start difference. First operand 234 states and 236 transitions. Second operand has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:55,098 INFO L93 Difference]: Finished difference Result 583 states and 590 transitions. [2022-10-16 14:27:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:27:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-10-16 14:27:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:55,102 INFO L225 Difference]: With dead ends: 583 [2022-10-16 14:27:55,102 INFO L226 Difference]: Without dead ends: 582 [2022-10-16 14:27:55,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:27:55,103 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:55,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 63 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:55,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-10-16 14:27:55,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2022-10-16 14:27:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.0103270223752152) internal successors, (587), 581 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 587 transitions. [2022-10-16 14:27:55,133 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 587 transitions. Word has length 233 [2022-10-16 14:27:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:55,134 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 587 transitions. [2022-10-16 14:27:55,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 587 transitions. [2022-10-16 14:27:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-10-16 14:27:55,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:27:55,147 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:55,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:27:55,361 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 [2022-10-16 14:27:55,362 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:27:55,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:27:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1468655896, now seen corresponding path program 2 times [2022-10-16 14:27:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:27:55,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756996924] [2022-10-16 14:27:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:27:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:27:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 10913 backedges. 0 proven. 3607 refuted. 0 times theorem prover too weak. 7306 trivial. 0 not checked. [2022-10-16 14:27:55,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:55,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756996924] [2022-10-16 14:27:55,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756996924] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:55,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266887361] [2022-10-16 14:27:55,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:27:55,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:55,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:55,992 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) [2022-10-16 14:27:56,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:27:56,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:27:56,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:27:56,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:27:56,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10913 backedges. 0 proven. 3607 refuted. 0 times theorem prover too weak. 7306 trivial. 0 not checked. [2022-10-16 14:27:57,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:27:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10913 backedges. 0 proven. 3607 refuted. 0 times theorem prover too weak. 7306 trivial. 0 not checked. [2022-10-16 14:27:57,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266887361] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:27:57,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:27:57,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-10-16 14:27:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061817335] [2022-10-16 14:27:57,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:27:57,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:27:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:27:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:27:57,938 INFO L87 Difference]: Start difference. First operand 582 states and 587 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:27:57,981 INFO L93 Difference]: Finished difference Result 582 states and 587 transitions. [2022-10-16 14:27:57,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:27:57,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 581 [2022-10-16 14:27:57,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:27:57,983 INFO L225 Difference]: With dead ends: 582 [2022-10-16 14:27:57,984 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:27:57,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1164 GetRequests, 1160 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:27:57,989 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:27:57,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:27:57,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:27:57,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:27:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:57,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:27:57,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 581 [2022-10-16 14:27:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:27:57,991 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:27:57,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:27:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:27:57,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:27:57,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-10-16 14:27:57,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-10-16 14:27:57,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-10-16 14:27:57,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-10-16 14:27:57,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-10-16 14:27:57,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-10-16 14:27:57,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-10-16 14:27:57,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-10-16 14:27:57,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-10-16 14:27:57,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-10-16 14:27:57,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-10-16 14:27:57,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-10-16 14:27:57,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-10-16 14:27:57,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-10-16 14:27:57,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-10-16 14:27:57,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-10-16 14:27:57,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-10-16 14:27:58,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-10-16 14:27:58,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:27:58,214 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 [2022-10-16 14:27:58,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:27:58,805 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,806 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2022-10-16 14:27:58,806 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,806 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,806 INFO L895 garLoopResultBuilder]: At program point L69(lines 39 89) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~main__i~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~main__j~0#1| 0)) (.cse0 (<= 1 |ULTIMATE.start_main_~main__j~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647)) (.cse3 (<= (+ |ULTIMATE.start_main_~main__i~0#1| 1) |ULTIMATE.start_main_~main__nlen~0#1|)) (.cse4 (< |ULTIMATE.start_main_~main__j~0#1| 8)) (.cse6 (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse5 .cse3) (and .cse1 .cse5 .cse3 .cse6) (and .cse0 .cse1 .cse3 .cse4 .cse6))) [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2022-10-16 14:27:58,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 94) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,808 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 89) no Hoare annotation was computed. [2022-10-16 14:27:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:27:58,809 INFO L895 garLoopResultBuilder]: At program point L95(lines 14 102) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647) (= |ULTIMATE.start_main_~main__i~0#1| 0)) [2022-10-16 14:27:58,809 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 70) no Hoare annotation was computed. [2022-10-16 14:27:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 94) no Hoare annotation was computed. [2022-10-16 14:27:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,810 INFO L895 garLoopResultBuilder]: At program point L79(lines 52 87) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~main__j~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647)) (.cse2 (<= (+ |ULTIMATE.start_main_~main__i~0#1| 1) |ULTIMATE.start_main_~main__nlen~0#1|)) (.cse3 (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_main_~main__i~0#1| 0) .cse2) (and .cse1 (= |ULTIMATE.start_main_~main__j~0#1| 0) .cse2 .cse3))) [2022-10-16 14:27:58,810 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 87) no Hoare annotation was computed. [2022-10-16 14:27:58,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-10-16 14:27:58,810 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2022-10-16 14:27:58,810 INFO L899 garLoopResultBuilder]: For program point L75-1(line 75) no Hoare annotation was computed. [2022-10-16 14:27:58,810 INFO L902 garLoopResultBuilder]: At program point L100(lines 13 102) the Hoare annotation is: true [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,811 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 96) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point L59-2(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point L59-3(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 85) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-10-16 14:27:58,813 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,813 INFO L899 garLoopResultBuilder]: For program point L43-2(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,813 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2022-10-16 14:27:58,818 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:27:58,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:27:58,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:27:58 BoogieIcfgContainer [2022-10-16 14:27:58,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:27:58,843 INFO L158 Benchmark]: Toolchain (without parser) took 11132.71ms. Allocated memory was 151.0MB in the beginning and 229.6MB in the end (delta: 78.6MB). Free memory was 126.5MB in the beginning and 98.5MB in the end (delta: 28.0MB). Peak memory consumption was 107.7MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,843 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:27:58,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.22ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 115.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.94ms. Allocated memory is still 151.0MB. Free memory was 115.6MB in the beginning and 113.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,844 INFO L158 Benchmark]: Boogie Preprocessor took 23.31ms. Allocated memory is still 151.0MB. Free memory was 113.9MB in the beginning and 112.9MB in the end (delta: 978.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,845 INFO L158 Benchmark]: RCFGBuilder took 452.89ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 100.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,845 INFO L158 Benchmark]: TraceAbstraction took 10336.49ms. Allocated memory was 151.0MB in the beginning and 229.6MB in the end (delta: 78.6MB). Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 81.5MB. Max. memory is 8.0GB. [2022-10-16 14:27:58,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.22ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 115.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.94ms. Allocated memory is still 151.0MB. Free memory was 115.6MB in the beginning and 113.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.31ms. Allocated memory is still 151.0MB. Free memory was 113.9MB in the beginning and 112.9MB in the end (delta: 978.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 452.89ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 100.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 10336.49ms. Allocated memory was 151.0MB in the beginning and 229.6MB in the end (delta: 78.6MB). Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 81.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 12, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 706 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 319 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 306 mSDtfsCounter, 319 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2084 GetRequests, 2037 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred in iteration=11, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 77 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 73 NumberOfFragments, 121 HoareAnnotationTreeSize, 4 FomulaSimplifications, 309 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1416 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2376 NumberOfCodeBlocks, 2292 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3302 ConstructedInterpolants, 0 QuantifiedInterpolants, 10496 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1926 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 25412/39447 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((1 <= main__j && main__nlen <= 2147483647) && main__i + 1 <= main__nlen) && 1 <= main__i) || (((1 <= main__j && main__nlen <= 2147483647) && main__i == 0) && main__i + 1 <= main__nlen)) || (((main__nlen <= 2147483647 && main__j == 0) && main__i + 1 <= main__nlen) && 1 <= main__i) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: main__nlen <= 2147483647 && main__i == 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((1 <= main__j && main__nlen <= 2147483647) && main__i == 0) && main__i + 1 <= main__nlen) && main__j < 8) || (((main__nlen <= 2147483647 && main__i == 0) && main__j == 0) && main__i + 1 <= main__nlen)) || (((main__nlen <= 2147483647 && main__j == 0) && main__i + 1 <= main__nlen) && 1 <= main__i)) || ((((1 <= main__j && main__nlen <= 2147483647) && main__i + 1 <= main__nlen) && main__j < 8) && 1 <= main__i) RESULT: Ultimate proved your program to be correct! [2022-10-16 14:27:58,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...