./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 [2021-12-19 15:01:23,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:01:23,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:01:23,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:01:23,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:01:23,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:01:23,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:01:23,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:01:23,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:01:23,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:01:23,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:01:23,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:01:23,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:01:23,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:01:23,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:01:23,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:01:23,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:01:23,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:01:23,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:01:23,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:01:23,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:01:23,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:01:23,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:01:23,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:01:23,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:01:23,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:01:23,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:01:23,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:01:23,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:01:23,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:01:23,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:01:23,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:01:23,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:01:23,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:01:23,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:01:23,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:01:23,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:01:23,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:01:23,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:01:23,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:01:23,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:01:23,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:01:23,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:01:23,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:01:23,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:01:23,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:01:23,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:01:23,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:01:23,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:01:23,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:01:23,655 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:01:23,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:01:23,656 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:01:23,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:01:23,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:01:23,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:01:23,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:01:23,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:01:23,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:01:23,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:01:23,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:01:23,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:01:23,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:01:23,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:01:23,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:01:23,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:01:23,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:01:23,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:01:23,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:01:23,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2021-12-19 15:01:23,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:01:23,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:01:23,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:01:23,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:01:23,890 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:01:23,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2021-12-19 15:01:23,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67633bfad/121ed72eb6504a99a4223e15978e3493/FLAGc0209b419 [2021-12-19 15:01:24,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:01:24,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2021-12-19 15:01:24,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67633bfad/121ed72eb6504a99a4223e15978e3493/FLAGc0209b419 [2021-12-19 15:01:24,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67633bfad/121ed72eb6504a99a4223e15978e3493 [2021-12-19 15:01:24,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:01:24,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:01:24,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:01:24,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:01:24,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:01:24,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4faa2199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24, skipping insertion in model container [2021-12-19 15:01:24,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:01:24,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:01:24,865 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] [2021-12-19 15:01:24,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:01:24,871 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:01:24,886 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] [2021-12-19 15:01:24,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:01:24,899 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:01:24,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24 WrapperNode [2021-12-19 15:01:24,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:01:24,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:01:24,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:01:24,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:01:24,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,921 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-19 15:01:24,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:01:24,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:01:24,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:01:24,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:01:24,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:01:24,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:01:24,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:01:24,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:01:24,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (1/1) ... [2021-12-19 15:01:24,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:01:24,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:24,988 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) [2021-12-19 15:01:25,007 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 [2021-12-19 15:01:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:01:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:01:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:01:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:01:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-19 15:01:25,021 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-19 15:01:25,062 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:01:25,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:01:25,221 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:01:25,225 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:01:25,239 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-19 15:01:25,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:01:25 BoogieIcfgContainer [2021-12-19 15:01:25,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:01:25,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:01:25,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:01:25,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:01:25,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:01:24" (1/3) ... [2021-12-19 15:01:25,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc7b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:01:25, skipping insertion in model container [2021-12-19 15:01:25,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:01:24" (2/3) ... [2021-12-19 15:01:25,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc7b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:01:25, skipping insertion in model container [2021-12-19 15:01:25,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:01:25" (3/3) ... [2021-12-19 15:01:25,248 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2021-12-19 15:01:25,251 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:01:25,251 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-19 15:01:25,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:01:25,305 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 [2021-12-19 15:01:25,305 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-19 15:01:25,317 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) [2021-12-19 15:01:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:01:25,327 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2021-12-19 15:01:25,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654088291] [2021-12-19 15:01:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654088291] [2021-12-19 15:01:25,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654088291] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:25,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:25,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:25,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837438898] [2021-12-19 15:01:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:25,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:25,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:25,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:25,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:25,503 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) [2021-12-19 15:01:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:25,591 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2021-12-19 15:01:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:25,594 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 [2021-12-19 15:01:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:25,602 INFO L225 Difference]: With dead ends: 64 [2021-12-19 15:01:25,602 INFO L226 Difference]: Without dead ends: 45 [2021-12-19 15:01:25,604 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 [2021-12-19 15:01:25,607 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:01:25,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 108 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:01:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-19 15:01:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2021-12-19 15:01:25,632 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) [2021-12-19 15:01:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-12-19 15:01:25,635 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-12-19 15:01:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:25,635 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-19 15:01:25,635 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) [2021-12-19 15:01:25,635 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-12-19 15:01:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:01:25,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:01:25,637 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2021-12-19 15:01:25,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432823350] [2021-12-19 15:01:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432823350] [2021-12-19 15:01:25,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432823350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:25,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:25,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:25,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311875232] [2021-12-19 15:01:25,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:25,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:25,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:25,704 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) [2021-12-19 15:01:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:25,733 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2021-12-19 15:01:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:25,733 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 [2021-12-19 15:01:25,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:25,734 INFO L225 Difference]: With dead ends: 67 [2021-12-19 15:01:25,734 INFO L226 Difference]: Without dead ends: 65 [2021-12-19 15:01:25,735 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 [2021-12-19 15:01:25,736 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 [2021-12-19 15:01:25,736 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] [2021-12-19 15:01:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-19 15:01:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-19 15:01:25,741 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) [2021-12-19 15:01:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2021-12-19 15:01:25,742 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2021-12-19 15:01:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:25,742 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2021-12-19 15:01:25,742 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) [2021-12-19 15:01:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2021-12-19 15:01:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 15:01:25,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:01:25,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2021-12-19 15:01:25,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153297689] [2021-12-19 15:01:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153297689] [2021-12-19 15:01:25,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153297689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:25,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:25,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:25,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489668464] [2021-12-19 15:01:25,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:25,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:25,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:25,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:25,778 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) [2021-12-19 15:01:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:25,813 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-12-19 15:01:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:25,814 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 [2021-12-19 15:01:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:25,814 INFO L225 Difference]: With dead ends: 64 [2021-12-19 15:01:25,814 INFO L226 Difference]: Without dead ends: 62 [2021-12-19 15:01:25,815 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 [2021-12-19 15:01:25,816 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 [2021-12-19 15:01:25,816 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] [2021-12-19 15:01:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-19 15:01:25,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2021-12-19 15:01:25,821 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) [2021-12-19 15:01:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2021-12-19 15:01:25,822 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 9 [2021-12-19 15:01:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:25,822 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2021-12-19 15:01:25,822 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) [2021-12-19 15:01:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2021-12-19 15:01:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-19 15:01:25,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:01:25,823 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2021-12-19 15:01:25,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307848234] [2021-12-19 15:01:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307848234] [2021-12-19 15:01:25,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307848234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:25,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:25,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:01:25,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890219526] [2021-12-19 15:01:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:25,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:01:25,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:01:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:01:25,841 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) [2021-12-19 15:01:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:25,852 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2021-12-19 15:01:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:01:25,852 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 [2021-12-19 15:01:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:25,853 INFO L225 Difference]: With dead ends: 52 [2021-12-19 15:01:25,853 INFO L226 Difference]: Without dead ends: 51 [2021-12-19 15:01:25,853 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 [2021-12-19 15:01:25,854 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 [2021-12-19 15:01:25,855 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] [2021-12-19 15:01:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-19 15:01:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-19 15:01:25,858 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) [2021-12-19 15:01:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-12-19 15:01:25,859 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2021-12-19 15:01:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:25,859 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-12-19 15:01:25,859 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) [2021-12-19 15:01:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-12-19 15:01:25,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-19 15:01:25,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:01:25,860 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1895634472, now seen corresponding path program 1 times [2021-12-19 15:01:25,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719239877] [2021-12-19 15:01:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719239877] [2021-12-19 15:01:25,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719239877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:25,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:25,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:25,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073471095] [2021-12-19 15:01:25,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:25,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:25,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:25,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:25,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:25,895 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) [2021-12-19 15:01:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:25,927 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-12-19 15:01:25,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:25,927 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 [2021-12-19 15:01:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:25,928 INFO L225 Difference]: With dead ends: 63 [2021-12-19 15:01:25,928 INFO L226 Difference]: Without dead ends: 62 [2021-12-19 15:01:25,929 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 [2021-12-19 15:01:25,929 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 [2021-12-19 15:01:25,930 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] [2021-12-19 15:01:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-19 15:01:25,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2021-12-19 15:01:25,934 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) [2021-12-19 15:01:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2021-12-19 15:01:25,935 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 11 [2021-12-19 15:01:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:25,936 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2021-12-19 15:01:25,936 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) [2021-12-19 15:01:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2021-12-19 15:01:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-19 15:01:25,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:25,936 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:25,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-19 15:01:25,936 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1032977456, now seen corresponding path program 1 times [2021-12-19 15:01:25,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:25,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953433773] [2021-12-19 15:01:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:25,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953433773] [2021-12-19 15:01:25,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953433773] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130595624] [2021-12-19 15:01:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:25,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:25,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:25,993 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) [2021-12-19 15:01:25,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:01:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:26,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:01:26,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:26,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:26,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130595624] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:26,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:26,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-19 15:01:26,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913370818] [2021-12-19 15:01:26,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:26,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-19 15:01:26,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:26,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-19 15:01:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:01:26,246 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) [2021-12-19 15:01:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:26,378 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2021-12-19 15:01:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-19 15:01:26,379 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 [2021-12-19 15:01:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:26,379 INFO L225 Difference]: With dead ends: 162 [2021-12-19 15:01:26,380 INFO L226 Difference]: Without dead ends: 160 [2021-12-19 15:01:26,380 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 [2021-12-19 15:01:26,381 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:01:26,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 125 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:01:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-19 15:01:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2021-12-19 15:01:26,390 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) [2021-12-19 15:01:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2021-12-19 15:01:26,392 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 15 [2021-12-19 15:01:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:26,392 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2021-12-19 15:01:26,392 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) [2021-12-19 15:01:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2021-12-19 15:01:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-19 15:01:26,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:26,393 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:26,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-19 15:01:26,607 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 [2021-12-19 15:01:26,608 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:26,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2082106057, now seen corresponding path program 1 times [2021-12-19 15:01:26,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:26,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587849557] [2021-12-19 15:01:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:26,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:26,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:26,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587849557] [2021-12-19 15:01:26,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587849557] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:26,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266687244] [2021-12-19 15:01:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:26,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:26,672 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) [2021-12-19 15:01:26,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:01:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:26,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:01:26,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:26,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:26,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266687244] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:26,781 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:26,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-19 15:01:26,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238263204] [2021-12-19 15:01:26,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:26,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-19 15:01:26,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-19 15:01:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:01:26,783 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) [2021-12-19 15:01:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:26,879 INFO L93 Difference]: Finished difference Result 285 states and 351 transitions. [2021-12-19 15:01:26,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 15:01:26,880 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 [2021-12-19 15:01:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:26,881 INFO L225 Difference]: With dead ends: 285 [2021-12-19 15:01:26,881 INFO L226 Difference]: Without dead ends: 283 [2021-12-19 15:01:26,882 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 [2021-12-19 15:01:26,883 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 [2021-12-19 15:01:26,883 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] [2021-12-19 15:01:26,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-19 15:01:26,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 188. [2021-12-19 15:01:26,894 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) [2021-12-19 15:01:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 226 transitions. [2021-12-19 15:01:26,896 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 226 transitions. Word has length 17 [2021-12-19 15:01:26,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:26,896 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 226 transitions. [2021-12-19 15:01:26,897 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) [2021-12-19 15:01:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 226 transitions. [2021-12-19 15:01:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-19 15:01:26,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:26,897 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:26,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:27,114 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 [2021-12-19 15:01:27,115 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:27,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash -120778269, now seen corresponding path program 1 times [2021-12-19 15:01:27,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:27,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644389421] [2021-12-19 15:01:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:27,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:27,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644389421] [2021-12-19 15:01:27,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644389421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:27,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:27,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:27,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673430939] [2021-12-19 15:01:27,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:27,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:27,163 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) [2021-12-19 15:01:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:27,218 INFO L93 Difference]: Finished difference Result 209 states and 248 transitions. [2021-12-19 15:01:27,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:27,219 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 [2021-12-19 15:01:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:27,220 INFO L225 Difference]: With dead ends: 209 [2021-12-19 15:01:27,220 INFO L226 Difference]: Without dead ends: 208 [2021-12-19 15:01:27,220 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 [2021-12-19 15:01:27,221 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 [2021-12-19 15:01:27,221 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] [2021-12-19 15:01:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-12-19 15:01:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 154. [2021-12-19 15:01:27,237 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) [2021-12-19 15:01:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 180 transitions. [2021-12-19 15:01:27,239 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 180 transitions. Word has length 18 [2021-12-19 15:01:27,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:27,244 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 180 transitions. [2021-12-19 15:01:27,244 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) [2021-12-19 15:01:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 180 transitions. [2021-12-19 15:01:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-19 15:01:27,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:27,245 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:27,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-19 15:01:27,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:27,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash 40289813, now seen corresponding path program 1 times [2021-12-19 15:01:27,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914382787] [2021-12-19 15:01:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:27,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:27,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914382787] [2021-12-19 15:01:27,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914382787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:01:27,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:01:27,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:01:27,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824075976] [2021-12-19 15:01:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:01:27,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:01:27,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:01:27,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:01:27,283 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) [2021-12-19 15:01:27,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:27,312 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2021-12-19 15:01:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:01:27,312 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 [2021-12-19 15:01:27,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:27,313 INFO L225 Difference]: With dead ends: 222 [2021-12-19 15:01:27,313 INFO L226 Difference]: Without dead ends: 95 [2021-12-19 15:01:27,314 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 [2021-12-19 15:01:27,315 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 [2021-12-19 15:01:27,315 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] [2021-12-19 15:01:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-19 15:01:27,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 62. [2021-12-19 15:01:27,320 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) [2021-12-19 15:01:27,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2021-12-19 15:01:27,321 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 19 [2021-12-19 15:01:27,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:27,321 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2021-12-19 15:01:27,321 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) [2021-12-19 15:01:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2021-12-19 15:01:27,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-19 15:01:27,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:27,322 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-12-19 15:01:27,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-19 15:01:27,323 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1445573142, now seen corresponding path program 1 times [2021-12-19 15:01:27,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:27,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250724805] [2021-12-19 15:01:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:27,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250724805] [2021-12-19 15:01:27,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250724805] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317001484] [2021-12-19 15:01:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:27,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:27,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:27,374 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) [2021-12-19 15:01:27,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:01:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:27,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 15:01:27,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317001484] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:27,596 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:27,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-12-19 15:01:27,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154806513] [2021-12-19 15:01:27,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:27,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-19 15:01:27,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:27,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-19 15:01:27,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-12-19 15:01:27,598 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) [2021-12-19 15:01:27,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:27,742 INFO L93 Difference]: Finished difference Result 206 states and 216 transitions. [2021-12-19 15:01:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-19 15:01:27,742 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 [2021-12-19 15:01:27,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:27,744 INFO L225 Difference]: With dead ends: 206 [2021-12-19 15:01:27,744 INFO L226 Difference]: Without dead ends: 205 [2021-12-19 15:01:27,744 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 [2021-12-19 15:01:27,745 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 [2021-12-19 15:01:27,745 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] [2021-12-19 15:01:27,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-19 15:01:27,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 98. [2021-12-19 15:01:27,752 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) [2021-12-19 15:01:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2021-12-19 15:01:27,753 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 27 [2021-12-19 15:01:27,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:27,753 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2021-12-19 15:01:27,753 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) [2021-12-19 15:01:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2021-12-19 15:01:27,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-19 15:01:27,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:27,754 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-19 15:01:27,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:27,971 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 [2021-12-19 15:01:27,971 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:27,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1543096729, now seen corresponding path program 2 times [2021-12-19 15:01:27,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:27,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351419148] [2021-12-19 15:01:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:27,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:28,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:28,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351419148] [2021-12-19 15:01:28,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351419148] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:28,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740324607] [2021-12-19 15:01:28,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:01:28,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:28,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:28,075 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) [2021-12-19 15:01:28,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:01:28,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:01:28,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:28,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:01:28,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:28,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:28,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740324607] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:28,376 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:28,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-19 15:01:28,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98034656] [2021-12-19 15:01:28,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:28,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-19 15:01:28,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:28,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-19 15:01:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-19 15:01:28,378 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) [2021-12-19 15:01:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:28,524 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2021-12-19 15:01:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-19 15:01:28,524 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 [2021-12-19 15:01:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:28,525 INFO L225 Difference]: With dead ends: 151 [2021-12-19 15:01:28,525 INFO L226 Difference]: Without dead ends: 150 [2021-12-19 15:01:28,526 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 [2021-12-19 15:01:28,526 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 [2021-12-19 15:01:28,526 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] [2021-12-19 15:01:28,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-12-19 15:01:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-12-19 15:01:28,534 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) [2021-12-19 15:01:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2021-12-19 15:01:28,535 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 39 [2021-12-19 15:01:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:28,535 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2021-12-19 15:01:28,535 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) [2021-12-19 15:01:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2021-12-19 15:01:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-19 15:01:28,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:28,537 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-12-19 15:01:28,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-19 15:01:28,753 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 [2021-12-19 15:01:28,753 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1159104918, now seen corresponding path program 2 times [2021-12-19 15:01:28,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:28,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80305847] [2021-12-19 15:01:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:28,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:28,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80305847] [2021-12-19 15:01:28,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80305847] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841003055] [2021-12-19 15:01:28,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:01:28,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:28,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:28,895 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) [2021-12-19 15:01:28,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 15:01:28,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:01:28,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:28,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-19 15:01:28,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:29,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:29,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841003055] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:29,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:29,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2021-12-19 15:01:29,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704269721] [2021-12-19 15:01:29,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:29,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-19 15:01:29,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-19 15:01:29,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2021-12-19 15:01:29,323 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) [2021-12-19 15:01:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:29,652 INFO L93 Difference]: Finished difference Result 686 states and 708 transitions. [2021-12-19 15:01:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-19 15:01:29,652 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 [2021-12-19 15:01:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:29,654 INFO L225 Difference]: With dead ends: 686 [2021-12-19 15:01:29,654 INFO L226 Difference]: Without dead ends: 685 [2021-12-19 15:01:29,655 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 [2021-12-19 15:01:29,656 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 [2021-12-19 15:01:29,656 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] [2021-12-19 15:01:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-19 15:01:29,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 218. [2021-12-19 15:01:29,666 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) [2021-12-19 15:01:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2021-12-19 15:01:29,667 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 63 [2021-12-19 15:01:29,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:29,668 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2021-12-19 15:01:29,668 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) [2021-12-19 15:01:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2021-12-19 15:01:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-19 15:01:29,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:29,671 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-19 15:01:29,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:29,891 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 [2021-12-19 15:01:29,891 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2009773099, now seen corresponding path program 3 times [2021-12-19 15:01:29,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:29,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636643170] [2021-12-19 15:01:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:29,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:30,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:30,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636643170] [2021-12-19 15:01:30,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636643170] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:30,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003389648] [2021-12-19 15:01:30,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:01:30,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:30,105 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) [2021-12-19 15:01:30,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 15:01:30,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-19 15:01:30,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-19 15:01:30,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:30,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:30,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003389648] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:30,756 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:30,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-19 15:01:30,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902387022] [2021-12-19 15:01:30,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:30,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-19 15:01:30,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-19 15:01:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-19 15:01:30,760 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) [2021-12-19 15:01:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:31,180 INFO L93 Difference]: Finished difference Result 319 states and 345 transitions. [2021-12-19 15:01:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-19 15:01:31,180 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 [2021-12-19 15:01:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:31,182 INFO L225 Difference]: With dead ends: 319 [2021-12-19 15:01:31,182 INFO L226 Difference]: Without dead ends: 318 [2021-12-19 15:01:31,184 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 [2021-12-19 15:01:31,186 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 [2021-12-19 15:01:31,186 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] [2021-12-19 15:01:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-19 15:01:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 314. [2021-12-19 15:01:31,213 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) [2021-12-19 15:01:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 329 transitions. [2021-12-19 15:01:31,214 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 329 transitions. Word has length 87 [2021-12-19 15:01:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:31,215 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 329 transitions. [2021-12-19 15:01:31,215 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) [2021-12-19 15:01:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 329 transitions. [2021-12-19 15:01:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-19 15:01:31,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:31,218 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-12-19 15:01:31,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:31,459 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 [2021-12-19 15:01:31,459 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:31,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1550776470, now seen corresponding path program 3 times [2021-12-19 15:01:31,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:31,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789036704] [2021-12-19 15:01:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:31,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:31,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:31,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789036704] [2021-12-19 15:01:31,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789036704] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:31,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388611366] [2021-12-19 15:01:31,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:01:31,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:31,797 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) [2021-12-19 15:01:31,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 15:01:31,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-19 15:01:31,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:31,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-19 15:01:31,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:32,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:32,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388611366] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:32,856 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:32,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-12-19 15:01:32,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218175966] [2021-12-19 15:01:32,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:32,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-12-19 15:01:32,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:32,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-12-19 15:01:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=3036, Unknown=0, NotChecked=0, Total=4032 [2021-12-19 15:01:32,858 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) [2021-12-19 15:01:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:33,784 INFO L93 Difference]: Finished difference Result 2414 states and 2460 transitions. [2021-12-19 15:01:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-12-19 15:01:33,785 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 [2021-12-19 15:01:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:33,791 INFO L225 Difference]: With dead ends: 2414 [2021-12-19 15:01:33,791 INFO L226 Difference]: Without dead ends: 2413 [2021-12-19 15:01:33,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2484, Invalid=6446, Unknown=0, NotChecked=0, Total=8930 [2021-12-19 15:01:33,794 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 [2021-12-19 15:01:33,794 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] [2021-12-19 15:01:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-12-19 15:01:33,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 458. [2021-12-19 15:01:33,816 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) [2021-12-19 15:01:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 489 transitions. [2021-12-19 15:01:33,818 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 489 transitions. Word has length 135 [2021-12-19 15:01:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:33,819 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 489 transitions. [2021-12-19 15:01:33,819 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) [2021-12-19 15:01:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 489 transitions. [2021-12-19 15:01:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-19 15:01:33,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:33,821 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-19 15:01:33,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:34,037 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 [2021-12-19 15:01:34,038 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:34,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1051592015, now seen corresponding path program 4 times [2021-12-19 15:01:34,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:34,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811036150] [2021-12-19 15:01:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:34,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:34,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:34,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811036150] [2021-12-19 15:01:34,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811036150] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:34,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960494118] [2021-12-19 15:01:34,596 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:01:34,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:34,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:34,597 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) [2021-12-19 15:01:34,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 15:01:34,662 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:01:34,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:34,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-19 15:01:34,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:34,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:36,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960494118] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:36,458 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:36,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-19 15:01:36,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423353759] [2021-12-19 15:01:36,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:36,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-19 15:01:36,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-19 15:01:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-19 15:01:36,464 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) [2021-12-19 15:01:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:37,823 INFO L93 Difference]: Finished difference Result 655 states and 709 transitions. [2021-12-19 15:01:37,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-19 15:01:37,824 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 [2021-12-19 15:01:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:37,826 INFO L225 Difference]: With dead ends: 655 [2021-12-19 15:01:37,826 INFO L226 Difference]: Without dead ends: 654 [2021-12-19 15:01:37,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2021-12-19 15:01:37,830 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1469 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-12-19 15:01:37,830 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] [2021-12-19 15:01:37,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2021-12-19 15:01:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 650. [2021-12-19 15:01:37,850 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) [2021-12-19 15:01:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 681 transitions. [2021-12-19 15:01:37,852 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 681 transitions. Word has length 183 [2021-12-19 15:01:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:37,853 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 681 transitions. [2021-12-19 15:01:37,853 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) [2021-12-19 15:01:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 681 transitions. [2021-12-19 15:01:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-19 15:01:37,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:37,856 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-12-19 15:01:37,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:38,073 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 [2021-12-19 15:01:38,074 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:38,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1033557654, now seen corresponding path program 4 times [2021-12-19 15:01:38,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:38,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472854756] [2021-12-19 15:01:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:38,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:39,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472854756] [2021-12-19 15:01:39,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472854756] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109617681] [2021-12-19 15:01:39,282 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:01:39,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:39,283 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) [2021-12-19 15:01:39,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 15:01:39,355 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:01:39,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-19 15:01:39,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:39,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:41,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109617681] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:41,682 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:41,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2021-12-19 15:01:41,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891913618] [2021-12-19 15:01:41,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:41,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-12-19 15:01:41,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:41,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-12-19 15:01:41,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4036, Invalid=12220, Unknown=0, NotChecked=0, Total=16256 [2021-12-19 15:01:41,687 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) [2021-12-19 15:01:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:44,701 INFO L93 Difference]: Finished difference Result 8942 states and 9036 transitions. [2021-12-19 15:01:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-12-19 15:01:44,701 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 [2021-12-19 15:01:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:44,726 INFO L225 Difference]: With dead ends: 8942 [2021-12-19 15:01:44,727 INFO L226 Difference]: Without dead ends: 8941 [2021-12-19 15:01:44,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7625 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10084, Invalid=26206, Unknown=0, NotChecked=0, Total=36290 [2021-12-19 15:01:44,732 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 4741 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-12-19 15:01:44,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 1048 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-19 15:01:44,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8941 states. [2021-12-19 15:01:44,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8941 to 938. [2021-12-19 15:01:44,806 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) [2021-12-19 15:01:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1001 transitions. [2021-12-19 15:01:44,810 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1001 transitions. Word has length 279 [2021-12-19 15:01:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:44,810 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1001 transitions. [2021-12-19 15:01:44,811 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) [2021-12-19 15:01:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1001 transitions. [2021-12-19 15:01:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-19 15:01:44,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:44,814 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-19 15:01:44,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:45,031 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 [2021-12-19 15:01:45,032 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:45,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1806002281, now seen corresponding path program 5 times [2021-12-19 15:01:45,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:45,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281586302] [2021-12-19 15:01:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:45,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:46,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:46,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281586302] [2021-12-19 15:01:46,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281586302] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:46,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293791592] [2021-12-19 15:01:46,810 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:01:46,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:46,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:46,824 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) [2021-12-19 15:01:46,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-19 15:01:46,990 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-19 15:01:46,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:46,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-19 15:01:47,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:47,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:51,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293791592] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:51,203 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:51,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-19 15:01:51,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158884479] [2021-12-19 15:01:51,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:51,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-19 15:01:51,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-19 15:01:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-19 15:01:51,209 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) [2021-12-19 15:01:55,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:55,703 INFO L93 Difference]: Finished difference Result 1327 states and 1437 transitions. [2021-12-19 15:01:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-19 15:01:55,704 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 [2021-12-19 15:01:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:55,707 INFO L225 Difference]: With dead ends: 1327 [2021-12-19 15:01:55,707 INFO L226 Difference]: Without dead ends: 1326 [2021-12-19 15:01:55,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2021-12-19 15:01:55,713 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3906 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-12-19 15:01:55,713 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] [2021-12-19 15:01:55,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-12-19 15:01:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1322. [2021-12-19 15:01:55,763 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) [2021-12-19 15:01:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1385 transitions. [2021-12-19 15:01:55,766 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1385 transitions. Word has length 375 [2021-12-19 15:01:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:55,767 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1385 transitions. [2021-12-19 15:01:55,768 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) [2021-12-19 15:01:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1385 transitions. [2021-12-19 15:01:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2021-12-19 15:01:55,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:55,776 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-12-19 15:01:55,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:56,006 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 [2021-12-19 15:01:56,006 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:01:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1377922410, now seen corresponding path program 5 times [2021-12-19 15:01:56,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:56,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796934695] [2021-12-19 15:01:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:56,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:59,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:59,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796934695] [2021-12-19 15:01:59,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796934695] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:59,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395189320] [2021-12-19 15:01:59,114 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:01:59,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:59,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:59,115 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) [2021-12-19 15:01:59,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-19 15:01:59,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2021-12-19 15:01:59,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:59,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 128 conjunts are in the unsatisfiable core [2021-12-19 15:01:59,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:02:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:02:00,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:02:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:02:08,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395189320] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:02:08,389 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:02:08,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2021-12-19 15:02:08,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949522664] [2021-12-19 15:02:08,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:02:08,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2021-12-19 15:02:08,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:02:08,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2021-12-19 15:02:08,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16260, Invalid=49020, Unknown=0, NotChecked=0, Total=65280 [2021-12-19 15:02:08,394 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) [2021-12-19 15:02:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:02:29,685 INFO L93 Difference]: Finished difference Result 34286 states and 34476 transitions. [2021-12-19 15:02:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2021-12-19 15:02:29,686 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 [2021-12-19 15:02:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:02:29,755 INFO L225 Difference]: With dead ends: 34286 [2021-12-19 15:02:29,755 INFO L226 Difference]: Without dead ends: 34285 [2021-12-19 15:02:29,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1006 SyntacticMatches, 0 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31625 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=40644, Invalid=105662, Unknown=0, NotChecked=0, Total=146306 [2021-12-19 15:02:29,769 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 11300 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2021-12-19 15:02:29,769 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] [2021-12-19 15:02:29,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34285 states. [2021-12-19 15:02:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34285 to 1898. [2021-12-19 15:02:30,001 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) [2021-12-19 15:02:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2025 transitions. [2021-12-19 15:02:30,009 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2025 transitions. Word has length 567 [2021-12-19 15:02:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:02:30,010 INFO L470 AbstractCegarLoop]: Abstraction has 1898 states and 2025 transitions. [2021-12-19 15:02:30,010 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) [2021-12-19 15:02:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2025 transitions. [2021-12-19 15:02:30,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-12-19 15:02:30,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:02:30,016 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-19 15:02:30,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-19 15:02:30,244 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 [2021-12-19 15:02:30,244 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:02:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:02:30,244 INFO L85 PathProgramCache]: Analyzing trace with hash -910916647, now seen corresponding path program 6 times [2021-12-19 15:02:30,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:02:30,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392388343] [2021-12-19 15:02:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:02:30,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:02:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:02:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:02:38,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:02:38,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392388343] [2021-12-19 15:02:38,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392388343] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:02:38,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291104447] [2021-12-19 15:02:38,552 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:02:38,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:02:38,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:02:38,553 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:02:38,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-19 15:02:38,966 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-19 15:02:38,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:02:38,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-19 15:02:38,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:02:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:02:39,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:02:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:02:55,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291104447] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:02:55,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:02:55,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2021-12-19 15:02:55,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548980118] [2021-12-19 15:02:55,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:02:55,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2021-12-19 15:02:55,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:02:55,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2021-12-19 15:02:55,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2021-12-19 15:02:55,102 INFO L87 Difference]: Start difference. First operand 1898 states and 2025 transitions. Second operand has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:03:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:03:28,439 INFO L93 Difference]: Finished difference Result 2671 states and 2893 transitions. [2021-12-19 15:03:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-12-19 15:03:28,444 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 759 [2021-12-19 15:03:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:03:28,448 INFO L225 Difference]: With dead ends: 2671 [2021-12-19 15:03:28,448 INFO L226 Difference]: Without dead ends: 2670 [2021-12-19 15:03:28,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1898 GetRequests, 1326 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2021-12-19 15:03:28,464 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 9487 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9487 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-19 15:03:28,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9487 Valid, 1589 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-19 15:03:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2021-12-19 15:03:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2666. [2021-12-19 15:03:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2347 states have (on average 1.0549637835534724) internal successors, (2476), 2348 states have internal predecessors, (2476), 317 states have call successors, (317), 317 states have call predecessors, (317), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:03:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 2793 transitions. [2021-12-19 15:03:28,665 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 2793 transitions. Word has length 759 [2021-12-19 15:03:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:03:28,666 INFO L470 AbstractCegarLoop]: Abstraction has 2666 states and 2793 transitions. [2021-12-19 15:03:28,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:03:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 2793 transitions. [2021-12-19 15:03:28,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1144 [2021-12-19 15:03:28,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:03:28,676 INFO L514 BasicCegarLoop]: trace histogram [127, 127, 127, 127, 127, 126, 126, 126, 126, 1, 1, 1, 1] [2021-12-19 15:03:28,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-19 15:03:28,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:03:28,896 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:03:28,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:03:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1712720534, now seen corresponding path program 6 times [2021-12-19 15:03:28,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:03:28,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132391299] [2021-12-19 15:03:28,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:03:28,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:03:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:03:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 71631 backedges. 0 proven. 71631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:03:39,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:03:39,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132391299] [2021-12-19 15:03:39,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132391299] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:03:39,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482306457] [2021-12-19 15:03:39,872 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:03:39,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:03:39,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:03:39,873 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:03:39,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-19 15:03:40,516 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2021-12-19 15:03:40,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:03:40,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 256 conjunts are in the unsatisfiable core [2021-12-19 15:03:40,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:03:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 71631 backedges. 0 proven. 71631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:03:41,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:04:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 71631 backedges. 0 proven. 71631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:04:09,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482306457] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:04:09,067 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:04:09,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 511 [2021-12-19 15:04:09,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972471359] [2021-12-19 15:04:09,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:04:09,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2021-12-19 15:04:09,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:04:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2021-12-19 15:04:09,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65284, Invalid=196348, Unknown=0, NotChecked=0, Total=261632 [2021-12-19 15:04:09,085 INFO L87 Difference]: Start difference. First operand 2666 states and 2793 transitions. Second operand has 512 states, 509 states have (on average 3.9901768172888015) internal successors, (2031), 258 states have internal predecessors, (2031), 254 states have call successors, (254), 254 states have call predecessors, (254), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:07:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:07:35,602 INFO L93 Difference]: Finished difference Result 134126 states and 134508 transitions. [2021-12-19 15:07:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 514 states. [2021-12-19 15:07:35,604 INFO L78 Accepts]: Start accepts. Automaton has has 512 states, 509 states have (on average 3.9901768172888015) internal successors, (2031), 258 states have internal predecessors, (2031), 254 states have call successors, (254), 254 states have call predecessors, (254), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1143 [2021-12-19 15:07:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:07:35,885 INFO L225 Difference]: With dead ends: 134126 [2021-12-19 15:07:35,886 INFO L226 Difference]: Without dead ends: 134125 [2021-12-19 15:07:35,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2795 GetRequests, 2030 SyntacticMatches, 0 SemanticMatches, 765 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128777 ImplicationChecksByTransitivity, 62.6s TimeCoverageRelationStatistics Valid=163204, Invalid=424318, Unknown=0, NotChecked=0, Total=587522 [2021-12-19 15:07:35,952 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 26012 mSDsluCounter, 4110 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 1562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26012 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 4643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1562 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:07:35,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26012 Valid, 4124 Invalid, 4643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1562 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-19 15:07:36,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134125 states. [2021-12-19 15:07:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134125 to 3818. [2021-12-19 15:07:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3371 states have (on average 1.07623850489469) internal successors, (3628), 3372 states have internal predecessors, (3628), 445 states have call successors, (445), 445 states have call predecessors, (445), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:07:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 4073 transitions. [2021-12-19 15:07:37,209 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 4073 transitions. Word has length 1143 [2021-12-19 15:07:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:07:37,211 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 4073 transitions. [2021-12-19 15:07:37,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 512 states, 509 states have (on average 3.9901768172888015) internal successors, (2031), 258 states have internal predecessors, (2031), 254 states have call successors, (254), 254 states have call predecessors, (254), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:07:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 4073 transitions. [2021-12-19 15:07:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2021-12-19 15:07:37,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:07:37,232 INFO L514 BasicCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2021-12-19 15:07:37,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-19 15:07:37,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-12-19 15:07:37,453 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:07:37,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:07:37,453 INFO L85 PathProgramCache]: Analyzing trace with hash -210519367, now seen corresponding path program 7 times [2021-12-19 15:07:37,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:07:37,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049542989] [2021-12-19 15:07:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:07:37,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:07:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:08:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:08:01,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:08:01,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049542989] [2021-12-19 15:08:01,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049542989] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:08:01,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362914198] [2021-12-19 15:08:01,179 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-19 15:08:01,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:08:01,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:08:01,181 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:08:01,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-19 15:08:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:08:01,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 384 conjunts are in the unsatisfiable core [2021-12-19 15:08:01,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:08:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:08:04,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:09:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:09:03,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362914198] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:09:03,849 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:09:03,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2021-12-19 15:09:03,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488987022] [2021-12-19 15:09:03,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:09:03,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2021-12-19 15:09:03,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:09:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2021-12-19 15:09:03,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2021-12-19 15:09:03,890 INFO L87 Difference]: Start difference. First operand 3818 states and 4073 transitions. Second operand has 768 states, 765 states have (on average 3.4915032679738562) internal successors, (2671), 386 states have internal predecessors, (2671), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:14:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:14:58,099 INFO L93 Difference]: Finished difference Result 5359 states and 5805 transitions. [2021-12-19 15:14:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2021-12-19 15:14:58,110 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 765 states have (on average 3.4915032679738562) internal successors, (2671), 386 states have internal predecessors, (2671), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1527 [2021-12-19 15:14:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:14:58,136 INFO L225 Difference]: With dead ends: 5359 [2021-12-19 15:14:58,136 INFO L226 Difference]: Without dead ends: 5358 [2021-12-19 15:14:58,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3818 GetRequests, 2670 SyntacticMatches, 0 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291084 ImplicationChecksByTransitivity, 134.0s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2021-12-19 15:14:58,303 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 19494 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19494 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-19 15:14:58,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19494 Valid, 3133 Invalid, 2910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [202 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-19 15:14:58,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2021-12-19 15:14:58,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5354. [2021-12-19 15:14:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 4715 states have (on average 1.0545068928950159) internal successors, (4972), 4716 states have internal predecessors, (4972), 637 states have call successors, (637), 637 states have call predecessors, (637), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:14:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 5609 transitions. [2021-12-19 15:14:58,862 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 5609 transitions. Word has length 1527 [2021-12-19 15:14:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:14:58,863 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 5609 transitions. [2021-12-19 15:14:58,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 765 states have (on average 3.4915032679738562) internal successors, (2671), 386 states have internal predecessors, (2671), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:14:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 5609 transitions. [2021-12-19 15:14:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2296 [2021-12-19 15:14:58,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:14:58,890 INFO L514 BasicCegarLoop]: trace histogram [255, 255, 255, 255, 255, 254, 254, 254, 254, 1, 1, 1, 1] [2021-12-19 15:14:58,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-19 15:14:59,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:14:59,104 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:14:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:14:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash 893713046, now seen corresponding path program 7 times [2021-12-19 15:14:59,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:14:59,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344191516] [2021-12-19 15:14:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:14:59,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:15:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15