./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition03-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:03:10,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:03:10,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:03:10,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:03:10,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:03:10,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:03:10,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:03:10,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:03:10,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:03:10,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:03:10,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:03:10,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:03:10,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:03:10,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:03:10,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:03:10,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:03:10,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:03:10,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:03:10,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:03:10,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:03:10,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:03:10,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:03:10,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:03:10,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:03:10,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:03:10,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:03:10,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:03:10,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:03:10,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:03:10,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:03:10,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:03:10,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:03:10,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:03:10,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:03:10,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:03:10,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:03:10,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:03:10,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:03:10,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:03:10,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:03:10,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:03:10,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-16 09:03:10,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:03:10,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:03:10,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:03:10,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:03:10,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 09:03:10,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 09:03:10,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:03:10,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:03:10,253 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:03:10,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:03:10,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:03:10,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:03:10,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-16 09:03:10,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 09:03:10,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 09:03:10,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:03:10,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 09:03:10,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:03:10,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2021-12-16 09:03:10,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:03:10,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:03:10,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:03:10,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:03:10,476 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:03:10,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2021-12-16 09:03:10,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1415293/6f5b0fdc464a43e18e9b9ecd5c4c2d23/FLAG0019dd75e [2021-12-16 09:03:10,853 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:03:10,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2021-12-16 09:03:10,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1415293/6f5b0fdc464a43e18e9b9ecd5c4c2d23/FLAG0019dd75e [2021-12-16 09:03:10,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d1415293/6f5b0fdc464a43e18e9b9ecd5c4c2d23 [2021-12-16 09:03:10,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:03:10,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:03:10,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:03:10,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:03:10,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:03:10,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:10" (1/1) ... [2021-12-16 09:03:10,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@546378a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:10, skipping insertion in model container [2021-12-16 09:03:10,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:10" (1/1) ... [2021-12-16 09:03:10,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:03:10,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:03:11,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-12-16 09:03:11,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:03:11,025 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:03:11,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-12-16 09:03:11,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:03:11,044 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:03:11,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11 WrapperNode [2021-12-16 09:03:11,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:03:11,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:03:11,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:03:11,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:03:11,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,068 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-16 09:03:11,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:03:11,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:03:11,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:03:11,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:03:11,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:03:11,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:03:11,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:03:11,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:03:11,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (1/1) ... [2021-12-16 09:03:11,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:03:11,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:11,106 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) [2021-12-16 09:03:11,115 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 [2021-12-16 09:03:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:03:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:03:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:03:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:03:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-16 09:03:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-16 09:03:11,179 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:03:11,180 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:03:11,285 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:03:11,289 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:03:11,289 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 09:03:11,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:11 BoogieIcfgContainer [2021-12-16 09:03:11,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:03:11,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 09:03:11,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 09:03:11,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 09:03:11,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:03:10" (1/3) ... [2021-12-16 09:03:11,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699ffe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:11, skipping insertion in model container [2021-12-16 09:03:11,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11" (2/3) ... [2021-12-16 09:03:11,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699ffe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:11, skipping insertion in model container [2021-12-16 09:03:11,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:11" (3/3) ... [2021-12-16 09:03:11,296 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2021-12-16 09:03:11,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 09:03:11,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-16 09:03:11,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 09:03:11,331 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 09:03:11,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-16 09:03:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-16 09:03:11,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-16 09:03:11,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:11,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:11,345 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:11,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2021-12-16 09:03:11,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:11,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245117071] [2021-12-16 09:03:11,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:11,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:11,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:11,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245117071] [2021-12-16 09:03:11,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245117071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:11,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:11,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:11,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876700353] [2021-12-16 09:03:11,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:11,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:11,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:11,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:11,494 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:11,585 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2021-12-16 09:03:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:11,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-16 09:03:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:11,593 INFO L225 Difference]: With dead ends: 64 [2021-12-16 09:03:11,593 INFO L226 Difference]: Without dead ends: 45 [2021-12-16 09:03:11,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:03:11,597 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:11,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 108 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-16 09:03:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2021-12-16 09:03:11,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-12-16 09:03:11,630 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-12-16 09:03:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:11,630 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-16 09:03:11,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-12-16 09:03:11,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-16 09:03:11,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:11,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:11,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 09:03:11,632 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:11,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2021-12-16 09:03:11,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:11,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642099916] [2021-12-16 09:03:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:11,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:11,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:11,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642099916] [2021-12-16 09:03:11,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642099916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:11,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:11,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:11,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107063098] [2021-12-16 09:03:11,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:11,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:11,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:11,678 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:11,715 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2021-12-16 09:03:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:11,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-16 09:03:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:11,717 INFO L225 Difference]: With dead ends: 67 [2021-12-16 09:03:11,717 INFO L226 Difference]: Without dead ends: 65 [2021-12-16 09:03:11,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:03:11,718 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:11,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 72 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-16 09:03:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-16 09:03:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2021-12-16 09:03:11,725 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2021-12-16 09:03:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:11,725 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2021-12-16 09:03:11,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,726 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2021-12-16 09:03:11,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-16 09:03:11,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:11,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:11,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 09:03:11,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:11,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2021-12-16 09:03:11,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:11,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413682510] [2021-12-16 09:03:11,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:11,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:11,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:11,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413682510] [2021-12-16 09:03:11,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413682510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:11,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:11,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:11,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970854837] [2021-12-16 09:03:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:11,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:11,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:11,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:11,760 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:11,800 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-12-16 09:03:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:11,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-16 09:03:11,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:11,801 INFO L225 Difference]: With dead ends: 64 [2021-12-16 09:03:11,802 INFO L226 Difference]: Without dead ends: 62 [2021-12-16 09:03:11,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:03:11,803 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:11,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-16 09:03:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2021-12-16 09:03:11,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2021-12-16 09:03:11,810 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 9 [2021-12-16 09:03:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:11,810 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2021-12-16 09:03:11,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2021-12-16 09:03:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-16 09:03:11,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:11,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:11,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 09:03:11,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:11,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2021-12-16 09:03:11,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:11,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610763423] [2021-12-16 09:03:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:11,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:11,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:11,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610763423] [2021-12-16 09:03:11,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610763423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:11,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:11,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 09:03:11,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392326683] [2021-12-16 09:03:11,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:11,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 09:03:11,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:11,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:03:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:03:11,842 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:11,867 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2021-12-16 09:03:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:03:11,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-16 09:03:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:11,869 INFO L225 Difference]: With dead ends: 52 [2021-12-16 09:03:11,869 INFO L226 Difference]: Without dead ends: 51 [2021-12-16 09:03:11,869 INFO L932 BasicCegarLoop]: 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 [2021-12-16 09:03:11,870 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:11,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-16 09:03:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-16 09:03:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-12-16 09:03:11,876 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2021-12-16 09:03:11,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:11,877 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-12-16 09:03:11,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-12-16 09:03:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-16 09:03:11,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:11,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:11,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 09:03:11,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:11,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1895634472, now seen corresponding path program 1 times [2021-12-16 09:03:11,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:11,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979182188] [2021-12-16 09:03:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:11,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:11,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:11,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979182188] [2021-12-16 09:03:11,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979182188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:11,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:11,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:11,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920404219] [2021-12-16 09:03:11,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:11,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:11,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:11,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:11,933 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:11,984 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-12-16 09:03:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:11,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-16 09:03:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:11,986 INFO L225 Difference]: With dead ends: 63 [2021-12-16 09:03:11,987 INFO L226 Difference]: Without dead ends: 62 [2021-12-16 09:03:11,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:03:11,991 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:11,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-16 09:03:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2021-12-16 09:03:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2021-12-16 09:03:12,005 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 11 [2021-12-16 09:03:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:12,006 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2021-12-16 09:03:12,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2021-12-16 09:03:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-16 09:03:12,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:12,007 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:12,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 09:03:12,008 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1032977456, now seen corresponding path program 1 times [2021-12-16 09:03:12,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:12,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082058007] [2021-12-16 09:03:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:12,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:12,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082058007] [2021-12-16 09:03:12,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082058007] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:12,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103645771] [2021-12-16 09:03:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:12,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:12,057 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) [2021-12-16 09:03:12,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 09:03:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:12,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:03:12,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:12,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103645771] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:12,253 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:12,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-16 09:03:12,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564006546] [2021-12-16 09:03:12,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:12,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 09:03:12,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:03:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:03:12,254 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:12,351 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2021-12-16 09:03:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 09:03:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-16 09:03:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:12,353 INFO L225 Difference]: With dead ends: 162 [2021-12-16 09:03:12,353 INFO L226 Difference]: Without dead ends: 160 [2021-12-16 09:03:12,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-16 09:03:12,354 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 216 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:12,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 125 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-16 09:03:12,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2021-12-16 09:03:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.297029702970297) internal successors, (131), 108 states have internal predecessors, (131), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2021-12-16 09:03:12,363 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 15 [2021-12-16 09:03:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:12,363 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2021-12-16 09:03:12,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2021-12-16 09:03:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-16 09:03:12,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:12,373 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:12,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 09:03:12,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-16 09:03:12,573 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:12,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:12,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2082106057, now seen corresponding path program 1 times [2021-12-16 09:03:12,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:12,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040516856] [2021-12-16 09:03:12,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:12,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:12,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040516856] [2021-12-16 09:03:12,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040516856] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:12,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080166599] [2021-12-16 09:03:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:12,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:12,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:12,618 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) [2021-12-16 09:03:12,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 09:03:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:12,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:03:12,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:12,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080166599] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:12,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:12,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-16 09:03:12,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144973203] [2021-12-16 09:03:12,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:12,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 09:03:12,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:12,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:03:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:03:12,752 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:12,850 INFO L93 Difference]: Finished difference Result 285 states and 351 transitions. [2021-12-16 09:03:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 09:03:12,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-16 09:03:12,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:12,852 INFO L225 Difference]: With dead ends: 285 [2021-12-16 09:03:12,852 INFO L226 Difference]: Without dead ends: 283 [2021-12-16 09:03:12,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2021-12-16 09:03:12,854 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 162 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:12,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 99 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-16 09:03:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 188. [2021-12-16 09:03:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.2654320987654322) internal successors, (205), 168 states have internal predecessors, (205), 21 states have call successors, (21), 19 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 226 transitions. [2021-12-16 09:03:12,866 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 226 transitions. Word has length 17 [2021-12-16 09:03:12,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:12,867 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 226 transitions. [2021-12-16 09:03:12,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 226 transitions. [2021-12-16 09:03:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-16 09:03:12,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:12,868 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:12,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:13,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-16 09:03:13,083 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:13,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash -120778269, now seen corresponding path program 1 times [2021-12-16 09:03:13,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:13,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836347856] [2021-12-16 09:03:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:13,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:13,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836347856] [2021-12-16 09:03:13,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836347856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:13,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:13,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:13,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185837706] [2021-12-16 09:03:13,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:13,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:13,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:13,115 INFO L87 Difference]: Start difference. First operand 188 states and 226 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:13,145 INFO L93 Difference]: Finished difference Result 209 states and 248 transitions. [2021-12-16 09:03:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-16 09:03:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:13,147 INFO L225 Difference]: With dead ends: 209 [2021-12-16 09:03:13,147 INFO L226 Difference]: Without dead ends: 208 [2021-12-16 09:03:13,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-16 09:03:13,148 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:13,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 50 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:13,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-12-16 09:03:13,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 154. [2021-12-16 09:03:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 133 states have (on average 1.2255639097744362) internal successors, (163), 138 states have internal predecessors, (163), 17 states have call successors, (17), 15 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 180 transitions. [2021-12-16 09:03:13,155 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 180 transitions. Word has length 18 [2021-12-16 09:03:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:13,155 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 180 transitions. [2021-12-16 09:03:13,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 180 transitions. [2021-12-16 09:03:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 09:03:13,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:13,156 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:03:13,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 09:03:13,156 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash 40289813, now seen corresponding path program 1 times [2021-12-16 09:03:13,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:13,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94933787] [2021-12-16 09:03:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:13,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:13,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:13,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94933787] [2021-12-16 09:03:13,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94933787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:03:13,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:03:13,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:03:13,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785509549] [2021-12-16 09:03:13,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:03:13,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:03:13,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:03:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:03:13,190 INFO L87 Difference]: Start difference. First operand 154 states and 180 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:13,218 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2021-12-16 09:03:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:03:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-16 09:03:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:13,219 INFO L225 Difference]: With dead ends: 222 [2021-12-16 09:03:13,219 INFO L226 Difference]: Without dead ends: 95 [2021-12-16 09:03:13,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-16 09:03:13,224 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:13,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 50 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:13,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-16 09:03:13,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 62. [2021-12-16 09:03:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2021-12-16 09:03:13,232 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 19 [2021-12-16 09:03:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:13,232 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2021-12-16 09:03:13,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2021-12-16 09:03:13,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-16 09:03:13,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:13,239 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-12-16 09:03:13,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 09:03:13,239 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:13,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:13,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1445573142, now seen corresponding path program 1 times [2021-12-16 09:03:13,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:13,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810885801] [2021-12-16 09:03:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:13,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810885801] [2021-12-16 09:03:13,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810885801] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:13,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13047385] [2021-12-16 09:03:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:13,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:13,321 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) [2021-12-16 09:03:13,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 09:03:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:13,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:03:13,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13047385] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:13,508 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:13,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-12-16 09:03:13,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935974580] [2021-12-16 09:03:13,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:13,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-16 09:03:13,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:13,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-16 09:03:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-12-16 09:03:13,509 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:13,648 INFO L93 Difference]: Finished difference Result 206 states and 216 transitions. [2021-12-16 09:03:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-16 09:03:13,648 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-16 09:03:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:13,649 INFO L225 Difference]: With dead ends: 206 [2021-12-16 09:03:13,649 INFO L226 Difference]: Without dead ends: 205 [2021-12-16 09:03:13,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2021-12-16 09:03:13,650 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 243 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:13,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 148 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-16 09:03:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 98. [2021-12-16 09:03:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.1058823529411765) internal successors, (94), 86 states have internal predecessors, (94), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2021-12-16 09:03:13,662 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 27 [2021-12-16 09:03:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:13,662 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2021-12-16 09:03:13,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2021-12-16 09:03:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-16 09:03:13,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:13,663 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-16 09:03:13,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:13,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:13,880 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:13,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:13,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1543096729, now seen corresponding path program 2 times [2021-12-16 09:03:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163130260] [2021-12-16 09:03:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:13,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:13,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:13,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163130260] [2021-12-16 09:03:13,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163130260] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:13,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604438820] [2021-12-16 09:03:13,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:03:13,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:13,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:13,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:13,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 09:03:14,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:03:14,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:14,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:03:14,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:14,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:14,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604438820] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:14,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:14,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-16 09:03:14,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448785263] [2021-12-16 09:03:14,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:14,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-16 09:03:14,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:14,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-16 09:03:14,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-16 09:03:14,225 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:14,361 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2021-12-16 09:03:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 09:03:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-12-16 09:03:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:14,362 INFO L225 Difference]: With dead ends: 151 [2021-12-16 09:03:14,362 INFO L226 Difference]: Without dead ends: 150 [2021-12-16 09:03:14,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 09:03:14,363 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 253 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:14,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 122 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:03:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-12-16 09:03:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-12-16 09:03:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.0708661417322836) internal successors, (136), 128 states have internal predecessors, (136), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2021-12-16 09:03:14,370 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 39 [2021-12-16 09:03:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:14,371 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2021-12-16 09:03:14,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2021-12-16 09:03:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-16 09:03:14,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:14,372 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-12-16 09:03:14,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:14,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:14,607 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:14,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1159104918, now seen corresponding path program 2 times [2021-12-16 09:03:14,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:14,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250046343] [2021-12-16 09:03:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:14,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:14,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:14,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250046343] [2021-12-16 09:03:14,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250046343] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:14,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839510244] [2021-12-16 09:03:14,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:03:14,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:14,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:14,747 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) [2021-12-16 09:03:14,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 09:03:14,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:03:14,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:14,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 09:03:14,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:14,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:15,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839510244] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:15,165 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:15,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2021-12-16 09:03:15,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701284431] [2021-12-16 09:03:15,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:15,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-16 09:03:15,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:15,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-16 09:03:15,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2021-12-16 09:03:15,169 INFO L87 Difference]: Start difference. First operand 146 states and 153 transitions. Second operand has 32 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 18 states have internal predecessors, (111), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:15,455 INFO L93 Difference]: Finished difference Result 686 states and 708 transitions. [2021-12-16 09:03:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-16 09:03:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 18 states have internal predecessors, (111), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-12-16 09:03:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:15,458 INFO L225 Difference]: With dead ends: 686 [2021-12-16 09:03:15,458 INFO L226 Difference]: Without dead ends: 685 [2021-12-16 09:03:15,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2021-12-16 09:03:15,459 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 549 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:15,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 285 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-16 09:03:15,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 218. [2021-12-16 09:03:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 191 states have (on average 1.0890052356020943) internal successors, (208), 192 states have internal predecessors, (208), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2021-12-16 09:03:15,472 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 63 [2021-12-16 09:03:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:15,473 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2021-12-16 09:03:15,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 18 states have internal predecessors, (111), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2021-12-16 09:03:15,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-16 09:03:15,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:15,475 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-16 09:03:15,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-16 09:03:15,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-16 09:03:15,693 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:15,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:15,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2009773099, now seen corresponding path program 3 times [2021-12-16 09:03:15,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:15,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910235840] [2021-12-16 09:03:15,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:15,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:15,923 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:15,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:15,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910235840] [2021-12-16 09:03:15,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910235840] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:15,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046585587] [2021-12-16 09:03:15,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:03:15,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:15,926 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) [2021-12-16 09:03:15,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 09:03:15,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-16 09:03:15,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:15,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-16 09:03:15,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:16,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:16,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046585587] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:16,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:16,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-16 09:03:16,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012327781] [2021-12-16 09:03:16,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:16,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-16 09:03:16,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-16 09:03:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-16 09:03:16,604 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:17,058 INFO L93 Difference]: Finished difference Result 319 states and 345 transitions. [2021-12-16 09:03:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-16 09:03:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-16 09:03:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:17,060 INFO L225 Difference]: With dead ends: 319 [2021-12-16 09:03:17,060 INFO L226 Difference]: Without dead ends: 318 [2021-12-16 09:03:17,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2021-12-16 09:03:17,062 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 455 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:17,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 244 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:03:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-16 09:03:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 314. [2021-12-16 09:03:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 275 states have (on average 1.0618181818181818) internal successors, (292), 276 states have internal predecessors, (292), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 329 transitions. [2021-12-16 09:03:17,074 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 329 transitions. Word has length 87 [2021-12-16 09:03:17,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:17,075 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 329 transitions. [2021-12-16 09:03:17,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 329 transitions. [2021-12-16 09:03:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 09:03:17,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:17,076 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-12-16 09:03:17,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:17,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:17,292 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:17,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1550776470, now seen corresponding path program 3 times [2021-12-16 09:03:17,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:17,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604633059] [2021-12-16 09:03:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:17,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:17,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:17,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604633059] [2021-12-16 09:03:17,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604633059] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:17,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533586846] [2021-12-16 09:03:17,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:03:17,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:17,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:17,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:17,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 09:03:17,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-16 09:03:17,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:17,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-16 09:03:17,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:17,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:18,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533586846] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:18,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:18,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-12-16 09:03:18,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293375876] [2021-12-16 09:03:18,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:18,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-12-16 09:03:18,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:18,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-12-16 09:03:18,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=3036, Unknown=0, NotChecked=0, Total=4032 [2021-12-16 09:03:18,868 INFO L87 Difference]: Start difference. First operand 314 states and 329 transitions. Second operand has 64 states, 61 states have (on average 3.918032786885246) internal successors, (239), 34 states have internal predecessors, (239), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:19,824 INFO L93 Difference]: Finished difference Result 2414 states and 2460 transitions. [2021-12-16 09:03:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-12-16 09:03:19,824 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 61 states have (on average 3.918032786885246) internal successors, (239), 34 states have internal predecessors, (239), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-16 09:03:19,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:19,830 INFO L225 Difference]: With dead ends: 2414 [2021-12-16 09:03:19,830 INFO L226 Difference]: Without dead ends: 2413 [2021-12-16 09:03:19,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2484, Invalid=6446, Unknown=0, NotChecked=0, Total=8930 [2021-12-16 09:03:19,833 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1476 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:19,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 553 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 09:03:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-12-16 09:03:19,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 458. [2021-12-16 09:03:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 403 states have (on average 1.0818858560794045) internal successors, (436), 404 states have internal predecessors, (436), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 489 transitions. [2021-12-16 09:03:19,866 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 489 transitions. Word has length 135 [2021-12-16 09:03:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:19,866 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 489 transitions. [2021-12-16 09:03:19,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 61 states have (on average 3.918032786885246) internal successors, (239), 34 states have internal predecessors, (239), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:19,866 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 489 transitions. [2021-12-16 09:03:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-16 09:03:19,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:19,868 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-16 09:03:19,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:20,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:20,084 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1051592015, now seen corresponding path program 4 times [2021-12-16 09:03:20,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:20,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689816798] [2021-12-16 09:03:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:20,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:20,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:20,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689816798] [2021-12-16 09:03:20,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689816798] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:20,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728904030] [2021-12-16 09:03:20,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:03:20,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:20,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:20,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:20,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-16 09:03:20,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:03:20,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:20,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-16 09:03:20,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:21,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:22,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728904030] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:22,800 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:22,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-16 09:03:22,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184690225] [2021-12-16 09:03:22,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:22,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-16 09:03:22,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-16 09:03:22,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-16 09:03:22,803 INFO L87 Difference]: Start difference. First operand 458 states and 489 transitions. Second operand has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:24,227 INFO L93 Difference]: Finished difference Result 655 states and 709 transitions. [2021-12-16 09:03:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-16 09:03:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-12-16 09:03:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:24,230 INFO L225 Difference]: With dead ends: 655 [2021-12-16 09:03:24,230 INFO L226 Difference]: Without dead ends: 654 [2021-12-16 09:03:24,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2021-12-16 09:03:24,234 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1469 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:24,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 419 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 09:03:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2021-12-16 09:03:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 650. [2021-12-16 09:03:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 571 states have (on average 1.0577933450087567) internal successors, (604), 572 states have internal predecessors, (604), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 681 transitions. [2021-12-16 09:03:24,255 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 681 transitions. Word has length 183 [2021-12-16 09:03:24,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:24,256 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 681 transitions. [2021-12-16 09:03:24,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:24,256 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 681 transitions. [2021-12-16 09:03:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-16 09:03:24,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:24,258 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-12-16 09:03:24,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:24,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-16 09:03:24,475 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1033557654, now seen corresponding path program 4 times [2021-12-16 09:03:24,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:24,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144307146] [2021-12-16 09:03:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:24,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:25,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:25,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144307146] [2021-12-16 09:03:25,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144307146] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:25,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402447288] [2021-12-16 09:03:25,677 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:03:25,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:25,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:25,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:25,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-16 09:03:25,756 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:03:25,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:25,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-16 09:03:25,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:26,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:28,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402447288] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:28,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:28,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2021-12-16 09:03:28,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591914517] [2021-12-16 09:03:28,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:28,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-12-16 09:03:28,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:28,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-12-16 09:03:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4036, Invalid=12220, Unknown=0, NotChecked=0, Total=16256 [2021-12-16 09:03:28,840 INFO L87 Difference]: Start difference. First operand 650 states and 681 transitions. Second operand has 128 states, 125 states have (on average 3.96) internal successors, (495), 66 states have internal predecessors, (495), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:32,588 INFO L93 Difference]: Finished difference Result 8942 states and 9036 transitions. [2021-12-16 09:03:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-12-16 09:03:32,591 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 125 states have (on average 3.96) internal successors, (495), 66 states have internal predecessors, (495), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2021-12-16 09:03:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:32,611 INFO L225 Difference]: With dead ends: 8942 [2021-12-16 09:03:32,611 INFO L226 Difference]: Without dead ends: 8941 [2021-12-16 09:03:32,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7625 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=10084, Invalid=26206, Unknown=0, NotChecked=0, Total=36290 [2021-12-16 09:03:32,615 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 4741 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:32,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 1048 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 09:03:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8941 states. [2021-12-16 09:03:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8941 to 938. [2021-12-16 09:03:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 827 states have (on average 1.0785973397823458) internal successors, (892), 828 states have internal predecessors, (892), 109 states have call successors, (109), 109 states have call predecessors, (109), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1001 transitions. [2021-12-16 09:03:32,682 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1001 transitions. Word has length 279 [2021-12-16 09:03:32,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:32,683 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1001 transitions. [2021-12-16 09:03:32,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 125 states have (on average 3.96) internal successors, (495), 66 states have internal predecessors, (495), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1001 transitions. [2021-12-16 09:03:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-16 09:03:32,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:32,687 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-16 09:03:32,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:32,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-16 09:03:32,916 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:32,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1806002281, now seen corresponding path program 5 times [2021-12-16 09:03:32,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:32,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90216136] [2021-12-16 09:03:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:32,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:34,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:34,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90216136] [2021-12-16 09:03:34,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90216136] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:34,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682090400] [2021-12-16 09:03:34,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:03:34,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:34,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:34,957 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:34,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-16 09:03:35,113 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-16 09:03:35,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:35,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-16 09:03:35,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:35,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:40,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682090400] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:40,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:40,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-16 09:03:40,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513665827] [2021-12-16 09:03:40,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:40,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-16 09:03:40,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-16 09:03:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-16 09:03:40,103 INFO L87 Difference]: Start difference. First operand 938 states and 1001 transitions. Second operand has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:44,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:03:44,724 INFO L93 Difference]: Finished difference Result 1327 states and 1437 transitions. [2021-12-16 09:03:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-16 09:03:44,724 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-12-16 09:03:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:03:44,728 INFO L225 Difference]: With dead ends: 1327 [2021-12-16 09:03:44,728 INFO L226 Difference]: Without dead ends: 1326 [2021-12-16 09:03:44,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2021-12-16 09:03:44,732 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3906 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3906 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 09:03:44,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3906 Valid, 803 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 09:03:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-12-16 09:03:44,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1322. [2021-12-16 09:03:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1163 states have (on average 1.0558899398108341) internal successors, (1228), 1164 states have internal predecessors, (1228), 157 states have call successors, (157), 157 states have call predecessors, (157), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1385 transitions. [2021-12-16 09:03:44,804 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1385 transitions. Word has length 375 [2021-12-16 09:03:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:03:44,805 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1385 transitions. [2021-12-16 09:03:44,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:03:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1385 transitions. [2021-12-16 09:03:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2021-12-16 09:03:44,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:03:44,812 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-12-16 09:03:44,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-16 09:03:45,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-16 09:03:45,027 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:03:45,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:03:45,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1377922410, now seen corresponding path program 5 times [2021-12-16 09:03:45,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:03:45,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116038590] [2021-12-16 09:03:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:03:45,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:03:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:03:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:48,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:03:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116038590] [2021-12-16 09:03:48,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116038590] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:03:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239061770] [2021-12-16 09:03:48,140 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:03:48,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:03:48,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:03:48,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:03:48,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-16 09:03:48,408 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2021-12-16 09:03:48,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:03:48,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 128 conjunts are in the unsatisfiable core [2021-12-16 09:03:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:03:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:49,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:03:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:03:56,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239061770] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:03:56,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:03:56,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2021-12-16 09:03:56,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595770545] [2021-12-16 09:03:56,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:03:56,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2021-12-16 09:03:56,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:03:56,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2021-12-16 09:03:56,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16260, Invalid=49020, Unknown=0, NotChecked=0, Total=65280 [2021-12-16 09:03:56,401 INFO L87 Difference]: Start difference. First operand 1322 states and 1385 transitions. Second operand has 256 states, 253 states have (on average 3.9802371541501977) internal successors, (1007), 130 states have internal predecessors, (1007), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:18,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:18,879 INFO L93 Difference]: Finished difference Result 34286 states and 34476 transitions. [2021-12-16 09:04:18,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2021-12-16 09:04:18,880 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 253 states have (on average 3.9802371541501977) internal successors, (1007), 130 states have internal predecessors, (1007), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 567 [2021-12-16 09:04:18,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:18,946 INFO L225 Difference]: With dead ends: 34286 [2021-12-16 09:04:18,946 INFO L226 Difference]: Without dead ends: 34285 [2021-12-16 09:04:18,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1006 SyntacticMatches, 0 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31625 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=40644, Invalid=105662, Unknown=0, NotChecked=0, Total=146306 [2021-12-16 09:04:18,958 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 11300 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11300 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:18,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11300 Valid, 2089 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 09:04:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34285 states. [2021-12-16 09:04:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34285 to 1898. [2021-12-16 09:04:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1675 states have (on average 1.0770149253731343) internal successors, (1804), 1676 states have internal predecessors, (1804), 221 states have call successors, (221), 221 states have call predecessors, (221), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2025 transitions. [2021-12-16 09:04:19,182 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2025 transitions. Word has length 567 [2021-12-16 09:04:19,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:19,183 INFO L470 AbstractCegarLoop]: Abstraction has 1898 states and 2025 transitions. [2021-12-16 09:04:19,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 253 states have (on average 3.9802371541501977) internal successors, (1007), 130 states have internal predecessors, (1007), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:19,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2025 transitions. [2021-12-16 09:04:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-12-16 09:04:19,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:19,196 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-16 09:04:19,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:19,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-16 09:04:19,413 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-16 09:04:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash -910916647, now seen corresponding path program 6 times [2021-12-16 09:04:19,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:19,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251885755] [2021-12-16 09:04:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:19,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat