./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 791161d1 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-?-791161d [2022-07-23 13:29:08,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:29:08,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:29:08,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:29:08,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:29:08,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:29:08,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:29:08,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:29:08,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:29:08,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:29:08,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:29:08,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:29:08,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:29:08,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:29:08,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:29:08,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:29:08,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:29:08,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:29:08,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:29:08,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:29:08,726 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:29:08,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:29:08,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:29:08,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:29:08,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:29:08,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:29:08,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:29:08,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:29:08,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:29:08,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:29:08,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:29:08,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:29:08,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:29:08,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:29:08,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:29:08,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:29:08,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:29:08,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:29:08,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:29:08,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:29:08,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:29:08,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:29:08,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:29:08,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:29:08,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:29:08,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:29:08,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:29:08,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:29:08,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:29:08,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:29:08,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:29:08,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:29:08,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:29:08,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:29:08,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:29:08,773 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:29:08,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:29:08,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:29:08,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:29:08,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:29:08,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:29:08,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:29:08,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:29:08,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:29:08,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:29:08,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:29:08,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:29:08,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:29:08,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:29:08,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:29:08,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2022-07-23 13:29:08,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:29:08,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:29:08,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:29:08,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:29:08,974 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:29:08,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2022-07-23 13:29:09,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1e90583/f0a427134b1043a88c0c7593c8ae7053/FLAGcce52861c [2022-07-23 13:29:09,393 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:29:09,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2022-07-23 13:29:09,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1e90583/f0a427134b1043a88c0c7593c8ae7053/FLAGcce52861c [2022-07-23 13:29:09,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1e90583/f0a427134b1043a88c0c7593c8ae7053 [2022-07-23 13:29:09,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:29:09,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:29:09,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:29:09,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:29:09,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:29:09,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a028ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09, skipping insertion in model container [2022-07-23 13:29:09,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:29:09,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:29:09,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2022-07-23 13:29:09,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:29:09,568 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:29:09,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2022-07-23 13:29:09,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:29:09,595 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:29:09,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09 WrapperNode [2022-07-23 13:29:09,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:29:09,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:29:09,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:29:09,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:29:09,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,618 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-07-23 13:29:09,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:29:09,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:29:09,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:29:09,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:29:09,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:29:09,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:29:09,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:29:09,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:29:09,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (1/1) ... [2022-07-23 13:29:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:29:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:09,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:29:09,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:29:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:29:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:29:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:29:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:29:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-07-23 13:29:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-07-23 13:29:09,723 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:29:09,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:29:09,825 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:29:09,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:29:09,829 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 13:29:09,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:29:09 BoogieIcfgContainer [2022-07-23 13:29:09,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:29:09,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:29:09,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:29:09,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:29:09,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:29:09" (1/3) ... [2022-07-23 13:29:09,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb7ad57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:29:09, skipping insertion in model container [2022-07-23 13:29:09,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:09" (2/3) ... [2022-07-23 13:29:09,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb7ad57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:29:09, skipping insertion in model container [2022-07-23 13:29:09,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:29:09" (3/3) ... [2022-07-23 13:29:09,838 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2022-07-23 13:29:09,847 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:29:09,848 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-23 13:29:09,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:29:09,900 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b31895e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70e28f9d [2022-07-23 13:29:09,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-23 13:29:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:29:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:29:09,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:09,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:09,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:09,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:09,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2022-07-23 13:29:09,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:09,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622136374] [2022-07-23 13:29:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622136374] [2022-07-23 13:29:10,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622136374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:10,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:10,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:29:10,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474298943] [2022-07-23 13:29:10,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:29:10,152 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:10,267 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-07-23 13:29:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:29:10,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-23 13:29:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:10,275 INFO L225 Difference]: With dead ends: 64 [2022-07-23 13:29:10,276 INFO L226 Difference]: Without dead ends: 45 [2022-07-23 13:29:10,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:29:10,283 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:10,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-23 13:29:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2022-07-23 13:29:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-07-23 13:29:10,314 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2022-07-23 13:29:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:10,314 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-07-23 13:29:10,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,315 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-07-23 13:29:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 13:29:10,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:10,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:10,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:29:10,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2022-07-23 13:29:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:10,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156803079] [2022-07-23 13:29:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156803079] [2022-07-23 13:29:10,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156803079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:10,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:10,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:29:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722974252] [2022-07-23 13:29:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:29:10,389 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:10,443 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2022-07-23 13:29:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:29:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-23 13:29:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:10,445 INFO L225 Difference]: With dead ends: 67 [2022-07-23 13:29:10,446 INFO L226 Difference]: Without dead ends: 65 [2022-07-23 13:29:10,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:29:10,448 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:10,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:10,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-23 13:29:10,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-07-23 13:29:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2022-07-23 13:29:10,458 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2022-07-23 13:29:10,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:10,459 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2022-07-23 13:29:10,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-07-23 13:29:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:29:10,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:10,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:10,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:29:10,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2022-07-23 13:29:10,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:10,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199104515] [2022-07-23 13:29:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199104515] [2022-07-23 13:29:10,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199104515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:10,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:10,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:29:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41542341] [2022-07-23 13:29:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:10,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:29:10,501 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:10,553 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2022-07-23 13:29:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:29:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:29:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:10,557 INFO L225 Difference]: With dead ends: 64 [2022-07-23 13:29:10,557 INFO L226 Difference]: Without dead ends: 62 [2022-07-23 13:29:10,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:29:10,559 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:10,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:10,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-23 13:29:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2022-07-23 13:29:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-07-23 13:29:10,569 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 9 [2022-07-23 13:29:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:10,569 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-07-23 13:29:10,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-07-23 13:29:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 13:29:10,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:10,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:10,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:29:10,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:10,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2022-07-23 13:29:10,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:10,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041822161] [2022-07-23 13:29:10,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041822161] [2022-07-23 13:29:10,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041822161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:10,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:10,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:29:10,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274876885] [2022-07-23 13:29:10,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:29:10,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:29:10,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:29:10,617 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:10,644 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-07-23 13:29:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:29:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-23 13:29:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:10,645 INFO L225 Difference]: With dead ends: 52 [2022-07-23 13:29:10,646 INFO L226 Difference]: Without dead ends: 51 [2022-07-23 13:29:10,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:29:10,648 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:10,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-23 13:29:10,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-23 13:29:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-07-23 13:29:10,658 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2022-07-23 13:29:10,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:10,660 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-07-23 13:29:10,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-07-23 13:29:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-23 13:29:10,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:10,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:10,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:29:10,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1895634472, now seen corresponding path program 1 times [2022-07-23 13:29:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:10,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234155800] [2022-07-23 13:29:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234155800] [2022-07-23 13:29:10,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234155800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:10,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:10,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:29:10,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531766951] [2022-07-23 13:29:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:10,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:10,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:29:10,710 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:10,745 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-07-23 13:29:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:29:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-23 13:29:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:10,746 INFO L225 Difference]: With dead ends: 63 [2022-07-23 13:29:10,746 INFO L226 Difference]: Without dead ends: 62 [2022-07-23 13:29:10,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:29:10,747 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:10,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 47 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-23 13:29:10,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2022-07-23 13:29:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-07-23 13:29:10,753 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 11 [2022-07-23 13:29:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:10,753 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-07-23 13:29:10,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-07-23 13:29:10,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:29:10,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:10,754 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:10,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 13:29:10,754 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:10,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:10,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1032977456, now seen corresponding path program 1 times [2022-07-23 13:29:10,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:10,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265585458] [2022-07-23 13:29:10,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265585458] [2022-07-23 13:29:10,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265585458] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105635672] [2022-07-23 13:29:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:10,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:10,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:10,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:29:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:10,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:29:10,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:10,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105635672] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:10,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:10,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-23 13:29:10,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787577637] [2022-07-23 13:29:10,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:10,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:29:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:10,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:29:10,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:29:10,935 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:11,062 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2022-07-23 13:29:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:29:11,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 13:29:11,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:11,064 INFO L225 Difference]: With dead ends: 162 [2022-07-23 13:29:11,064 INFO L226 Difference]: Without dead ends: 160 [2022-07-23 13:29:11,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:29:11,065 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 216 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:11,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 123 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-23 13:29:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2022-07-23 13:29:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.297029702970297) internal successors, (131), 108 states have internal predecessors, (131), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2022-07-23 13:29:11,075 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 15 [2022-07-23 13:29:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:11,075 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2022-07-23 13:29:11,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,077 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2022-07-23 13:29:11,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-23 13:29:11,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:11,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:11,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:11,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 13:29:11,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2082106057, now seen corresponding path program 1 times [2022-07-23 13:29:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:11,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925583830] [2022-07-23 13:29:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:11,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:11,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925583830] [2022-07-23 13:29:11,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925583830] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:11,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165939302] [2022-07-23 13:29:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:11,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:11,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:11,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:29:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:11,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:29:11,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:11,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:29:11,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165939302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:11,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:29:11,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-07-23 13:29:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140929567] [2022-07-23 13:29:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:11,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:11,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:29:11,427 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:11,472 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2022-07-23 13:29:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 13:29:11,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-23 13:29:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:11,475 INFO L225 Difference]: With dead ends: 165 [2022-07-23 13:29:11,475 INFO L226 Difference]: Without dead ends: 105 [2022-07-23 13:29:11,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:29:11,478 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:11,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 47 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:11,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-23 13:29:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 79. [2022-07-23 13:29:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 70 states have internal predecessors, (80), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2022-07-23 13:29:11,497 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 17 [2022-07-23 13:29:11,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:11,497 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2022-07-23 13:29:11,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-07-23 13:29:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-23 13:29:11,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:11,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:11,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:11,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-23 13:29:11,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash -120438652, now seen corresponding path program 1 times [2022-07-23 13:29:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:11,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408049543] [2022-07-23 13:29:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:11,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:11,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:11,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408049543] [2022-07-23 13:29:11,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408049543] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:11,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540611914] [2022-07-23 13:29:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:11,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:11,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:11,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:11,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:29:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:11,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:29:11,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:11,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:11,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540611914] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:11,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:11,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-23 13:29:11,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148207450] [2022-07-23 13:29:11,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:11,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:29:11,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:11,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:29:11,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:29:11,880 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:11,980 INFO L93 Difference]: Finished difference Result 178 states and 198 transitions. [2022-07-23 13:29:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:29:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-23 13:29:11,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:11,982 INFO L225 Difference]: With dead ends: 178 [2022-07-23 13:29:11,982 INFO L226 Difference]: Without dead ends: 177 [2022-07-23 13:29:11,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:29:11,983 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 126 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:11,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 93 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-23 13:29:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 160. [2022-07-23 13:29:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.158273381294964) internal successors, (161), 142 states have internal predecessors, (161), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 178 transitions. [2022-07-23 13:29:11,992 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 178 transitions. Word has length 18 [2022-07-23 13:29:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 178 transitions. [2022-07-23 13:29:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 178 transitions. [2022-07-23 13:29:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 13:29:11,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:11,993 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:29:12,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 13:29:12,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:12,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 40289813, now seen corresponding path program 1 times [2022-07-23 13:29:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:12,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730760612] [2022-07-23 13:29:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:12,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:12,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730760612] [2022-07-23 13:29:12,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730760612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:29:12,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:29:12,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:29:12,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103603097] [2022-07-23 13:29:12,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:29:12,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:29:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:29:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:29:12,231 INFO L87 Difference]: Start difference. First operand 160 states and 178 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:12,254 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2022-07-23 13:29:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:29:12,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-23 13:29:12,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:12,255 INFO L225 Difference]: With dead ends: 161 [2022-07-23 13:29:12,255 INFO L226 Difference]: Without dead ends: 80 [2022-07-23 13:29:12,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:29:12,256 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:12,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:29:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-23 13:29:12,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-07-23 13:29:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 70 states have internal predecessors, (72), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2022-07-23 13:29:12,261 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 19 [2022-07-23 13:29:12,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:12,261 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2022-07-23 13:29:12,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2022-07-23 13:29:12,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 13:29:12,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:12,262 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-23 13:29:12,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 13:29:12,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:12,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1543096729, now seen corresponding path program 2 times [2022-07-23 13:29:12,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:12,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364487485] [2022-07-23 13:29:12,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:12,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:12,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:12,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364487485] [2022-07-23 13:29:12,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364487485] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:12,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363063300] [2022-07-23 13:29:12,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:29:12,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:12,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:12,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:12,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:29:12,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:29:12,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:12,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 13:29:12,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:12,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:12,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363063300] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:12,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:12,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-23 13:29:12,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498344000] [2022-07-23 13:29:12,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:12,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 13:29:12,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:12,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 13:29:12,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:29:12,579 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:12,725 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2022-07-23 13:29:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 13:29:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-07-23 13:29:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:12,727 INFO L225 Difference]: With dead ends: 133 [2022-07-23 13:29:12,727 INFO L226 Difference]: Without dead ends: 132 [2022-07-23 13:29:12,727 INFO L412 NwaCegarLoop]: 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 [2022-07-23 13:29:12,728 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 280 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:12,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 126 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:12,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-07-23 13:29:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2022-07-23 13:29:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.027027027027027) internal successors, (114), 112 states have internal predecessors, (114), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2022-07-23 13:29:12,735 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 39 [2022-07-23 13:29:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:12,735 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2022-07-23 13:29:12,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2022-07-23 13:29:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 13:29:12,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:12,736 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-23 13:29:12,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:12,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:12,952 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:12,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1653811754, now seen corresponding path program 2 times [2022-07-23 13:29:12,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:12,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629704465] [2022-07-23 13:29:12,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629704465] [2022-07-23 13:29:13,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629704465] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910328891] [2022-07-23 13:29:13,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:29:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:13,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:29:13,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:29:13,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:13,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 13:29:13,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:13,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:13,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910328891] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:13,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:13,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-23 13:29:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207306003] [2022-07-23 13:29:13,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:13,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 13:29:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 13:29:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:29:13,304 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:13,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:13,454 INFO L93 Difference]: Finished difference Result 186 states and 192 transitions. [2022-07-23 13:29:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 13:29:13,454 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-23 13:29:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:13,455 INFO L225 Difference]: With dead ends: 186 [2022-07-23 13:29:13,455 INFO L226 Difference]: Without dead ends: 185 [2022-07-23 13:29:13,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 13:29:13,456 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 261 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:13,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 147 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-23 13:29:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2022-07-23 13:29:13,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.0188679245283019) internal successors, (162), 160 states have internal predecessors, (162), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2022-07-23 13:29:13,465 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 45 [2022-07-23 13:29:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:13,465 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2022-07-23 13:29:13,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:13,465 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2022-07-23 13:29:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-23 13:29:13,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:13,467 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-23 13:29:13,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:13,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-23 13:29:13,683 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2009773099, now seen corresponding path program 3 times [2022-07-23 13:29:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:13,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255146412] [2022-07-23 13:29:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:13,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:13,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255146412] [2022-07-23 13:29:13,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255146412] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:13,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746448642] [2022-07-23 13:29:13,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 13:29:13,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:13,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:13,929 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:13,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:29:13,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-23 13:29:13,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:13,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-23 13:29:13,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:14,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:14,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746448642] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:14,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:14,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-23 13:29:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362869827] [2022-07-23 13:29:14,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:14,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-23 13:29:14,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:14,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-23 13:29:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-23 13:29:14,508 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:14,930 INFO L93 Difference]: Finished difference Result 283 states and 295 transitions. [2022-07-23 13:29:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-23 13:29:14,931 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-23 13:29:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:14,932 INFO L225 Difference]: With dead ends: 283 [2022-07-23 13:29:14,932 INFO L226 Difference]: Without dead ends: 282 [2022-07-23 13:29:14,933 INFO L412 NwaCegarLoop]: 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 [2022-07-23 13:29:14,934 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 665 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:14,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 210 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:14,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-07-23 13:29:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2022-07-23 13:29:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 243 states have (on average 1.0123456790123457) internal successors, (246), 244 states have internal predecessors, (246), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 279 transitions. [2022-07-23 13:29:14,944 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 279 transitions. Word has length 87 [2022-07-23 13:29:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:14,945 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 279 transitions. [2022-07-23 13:29:14,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 279 transitions. [2022-07-23 13:29:14,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-23 13:29:14,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:14,946 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-23 13:29:14,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:15,159 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash -192044778, now seen corresponding path program 3 times [2022-07-23 13:29:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707914239] [2022-07-23 13:29:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:15,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:15,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707914239] [2022-07-23 13:29:15,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707914239] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:15,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577515279] [2022-07-23 13:29:15,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 13:29:15,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:15,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:15,385 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:15,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:29:15,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-23 13:29:15,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:15,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-23 13:29:15,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:15,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:16,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577515279] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:16,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:16,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-23 13:29:16,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447100193] [2022-07-23 13:29:16,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:16,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-23 13:29:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-23 13:29:16,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-23 13:29:16,006 INFO L87 Difference]: Start difference. First operand 278 states and 279 transitions. Second operand has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:16,463 INFO L93 Difference]: Finished difference Result 390 states and 402 transitions. [2022-07-23 13:29:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-23 13:29:16,464 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-23 13:29:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:16,465 INFO L225 Difference]: With dead ends: 390 [2022-07-23 13:29:16,465 INFO L226 Difference]: Without dead ends: 389 [2022-07-23 13:29:16,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-07-23 13:29:16,467 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 664 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:16,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 271 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:29:16,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-07-23 13:29:16,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 386. [2022-07-23 13:29:16,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 339 states have (on average 1.008849557522124) internal successors, (342), 340 states have internal predecessors, (342), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2022-07-23 13:29:16,480 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 99 [2022-07-23 13:29:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:16,480 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2022-07-23 13:29:16,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:16,480 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2022-07-23 13:29:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 13:29:16,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:16,482 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-23 13:29:16,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:16,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:16,700 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:16,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:16,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1051592015, now seen corresponding path program 4 times [2022-07-23 13:29:16,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:16,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706865622] [2022-07-23 13:29:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:16,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:17,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706865622] [2022-07-23 13:29:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706865622] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819632999] [2022-07-23 13:29:17,366 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 13:29:17,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:17,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:17,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:17,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:29:17,428 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 13:29:17,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:17,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-23 13:29:17,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:17,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:19,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819632999] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:19,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:19,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-23 13:29:19,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789572884] [2022-07-23 13:29:19,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:19,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-23 13:29:19,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-23 13:29:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-23 13:29:19,150 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:20,501 INFO L93 Difference]: Finished difference Result 583 states and 607 transitions. [2022-07-23 13:29:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-23 13:29:20,501 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-07-23 13:29:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:20,503 INFO L225 Difference]: With dead ends: 583 [2022-07-23 13:29:20,503 INFO L226 Difference]: Without dead ends: 582 [2022-07-23 13:29:20,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-07-23 13:29:20,507 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1594 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:20,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 402 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:29:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-07-23 13:29:20,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2022-07-23 13:29:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 507 states have (on average 1.0059171597633136) internal successors, (510), 508 states have internal predecessors, (510), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 579 transitions. [2022-07-23 13:29:20,534 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 579 transitions. Word has length 183 [2022-07-23 13:29:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:20,534 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 579 transitions. [2022-07-23 13:29:20,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 579 transitions. [2022-07-23 13:29:20,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-23 13:29:20,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:20,545 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-23 13:29:20,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:20,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 13:29:20,752 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash 82864022, now seen corresponding path program 4 times [2022-07-23 13:29:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307516968] [2022-07-23 13:29:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:21,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307516968] [2022-07-23 13:29:21,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307516968] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:21,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316081168] [2022-07-23 13:29:21,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 13:29:21,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:21,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:21,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:21,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:29:21,522 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 13:29:21,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:21,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-23 13:29:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:21,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:23,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316081168] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:23,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:23,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-23 13:29:23,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80394817] [2022-07-23 13:29:23,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:23,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-23 13:29:23,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:23,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-23 13:29:23,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-23 13:29:23,289 INFO L87 Difference]: Start difference. First operand 578 states and 579 transitions. Second operand has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:24,706 INFO L93 Difference]: Finished difference Result 798 states and 822 transitions. [2022-07-23 13:29:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-23 13:29:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-07-23 13:29:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:24,710 INFO L225 Difference]: With dead ends: 798 [2022-07-23 13:29:24,710 INFO L226 Difference]: Without dead ends: 797 [2022-07-23 13:29:24,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-07-23 13:29:24,713 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1357 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:24,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 513 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:29:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-07-23 13:29:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 794. [2022-07-23 13:29:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 699 states have (on average 1.0042918454935623) internal successors, (702), 700 states have internal predecessors, (702), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 795 transitions. [2022-07-23 13:29:24,744 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 795 transitions. Word has length 207 [2022-07-23 13:29:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:24,745 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 795 transitions. [2022-07-23 13:29:24,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 795 transitions. [2022-07-23 13:29:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-07-23 13:29:24,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:24,749 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-23 13:29:24,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:24,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-23 13:29:24,964 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1806002281, now seen corresponding path program 5 times [2022-07-23 13:29:24,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:24,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355315284] [2022-07-23 13:29:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:27,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355315284] [2022-07-23 13:29:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355315284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942382081] [2022-07-23 13:29:27,168 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-23 13:29:27,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:27,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:27,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:27,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:29:27,328 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-23 13:29:27,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:27,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-23 13:29:27,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:27,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:33,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942382081] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:33,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:33,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-23 13:29:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342652642] [2022-07-23 13:29:33,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:33,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-23 13:29:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:33,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-23 13:29:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-23 13:29:33,034 INFO L87 Difference]: Start difference. First operand 794 states and 795 transitions. Second operand has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:38,572 INFO L93 Difference]: Finished difference Result 1183 states and 1231 transitions. [2022-07-23 13:29:38,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-23 13:29:38,573 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2022-07-23 13:29:38,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:38,579 INFO L225 Difference]: With dead ends: 1183 [2022-07-23 13:29:38,579 INFO L226 Difference]: Without dead ends: 1182 [2022-07-23 13:29:38,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-07-23 13:29:38,583 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3094 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:38,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 792 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:29:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-07-23 13:29:38,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1178. [2022-07-23 13:29:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1035 states have (on average 1.0028985507246377) internal successors, (1038), 1036 states have internal predecessors, (1038), 141 states have call successors, (141), 141 states have call predecessors, (141), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1179 transitions. [2022-07-23 13:29:38,620 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1179 transitions. Word has length 375 [2022-07-23 13:29:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:38,620 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1179 transitions. [2022-07-23 13:29:38,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1179 transitions. [2022-07-23 13:29:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-07-23 13:29:38,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:38,625 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-23 13:29:38,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:38,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-23 13:29:38,843 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1533719702, now seen corresponding path program 5 times [2022-07-23 13:29:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:38,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254315465] [2022-07-23 13:29:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:38,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:29:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:29:41,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254315465] [2022-07-23 13:29:41,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254315465] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:29:41,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813817193] [2022-07-23 13:29:41,153 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-23 13:29:41,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:29:41,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:29:41,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:29:41,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:29:41,320 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-23 13:29:41,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:29:41,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-23 13:29:41,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:29:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:41,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:29:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:29:47,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813817193] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:29:47,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:29:47,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-23 13:29:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051971980] [2022-07-23 13:29:47,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:29:47,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-23 13:29:47,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:29:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-23 13:29:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-23 13:29:47,365 INFO L87 Difference]: Start difference. First operand 1178 states and 1179 transitions. Second operand has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:29:53,574 INFO L93 Difference]: Finished difference Result 1614 states and 1662 transitions. [2022-07-23 13:29:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-23 13:29:53,574 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2022-07-23 13:29:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:29:53,578 INFO L225 Difference]: With dead ends: 1614 [2022-07-23 13:29:53,578 INFO L226 Difference]: Without dead ends: 1613 [2022-07-23 13:29:53,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1034 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-07-23 13:29:53,582 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3651 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:29:53,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3651 Valid, 1009 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:29:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-07-23 13:29:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1610. [2022-07-23 13:29:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1419 states have (on average 1.0021141649048626) internal successors, (1422), 1420 states have internal predecessors, (1422), 189 states have call successors, (189), 189 states have call predecessors, (189), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1611 transitions. [2022-07-23 13:29:53,630 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1611 transitions. Word has length 423 [2022-07-23 13:29:53,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:29:53,631 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 1611 transitions. [2022-07-23 13:29:53,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:29:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1611 transitions. [2022-07-23 13:29:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-23 13:29:53,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:29:53,636 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-23 13:29:53,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:29:53,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-23 13:29:53,848 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:29:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:29:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -910916647, now seen corresponding path program 6 times [2022-07-23 13:29:53,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:29:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967635037] [2022-07-23 13:29:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:29:53,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:29:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:30:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:30:01,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:30:01,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967635037] [2022-07-23 13:30:01,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967635037] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:30:01,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302084573] [2022-07-23 13:30:01,905 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-23 13:30:01,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:30:01,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:30:01,906 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:30:01,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 13:30:02,358 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-23 13:30:02,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:30:02,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-23 13:30:02,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:30:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:30:03,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:30:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:30:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302084573] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:30:23,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:30:23,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-23 13:30:23,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711019204] [2022-07-23 13:30:23,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:30:23,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-23 13:30:23,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:30:23,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-23 13:30:23,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-23 13:30:23,602 INFO L87 Difference]: Start difference. First operand 1610 states and 1611 transitions. Second operand has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:30:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:30:58,083 INFO L93 Difference]: Finished difference Result 2383 states and 2479 transitions. [2022-07-23 13:30:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-23 13:30:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 759 [2022-07-23 13:30:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:30:58,090 INFO L225 Difference]: With dead ends: 2383 [2022-07-23 13:30:58,090 INFO L226 Difference]: Without dead ends: 2382 [2022-07-23 13:30:58,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1898 GetRequests, 1326 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-07-23 13:30:58,105 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6314 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 13:30:58,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 1566 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 13:30:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2022-07-23 13:30:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2378. [2022-07-23 13:30:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2091 states have (on average 1.0014347202295553) internal successors, (2094), 2092 states have internal predecessors, (2094), 285 states have call successors, (285), 285 states have call predecessors, (285), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:30:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2379 transitions. [2022-07-23 13:30:58,174 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2379 transitions. Word has length 759 [2022-07-23 13:30:58,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:30:58,175 INFO L495 AbstractCegarLoop]: Abstraction has 2378 states and 2379 transitions. [2022-07-23 13:30:58,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4829396325459316) internal successors, (1327), 194 states have internal predecessors, (1327), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:30:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2379 transitions. [2022-07-23 13:30:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2022-07-23 13:30:58,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:30:58,182 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-23 13:30:58,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 13:30:58,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-23 13:30:58,395 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:30:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:30:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -793620842, now seen corresponding path program 6 times [2022-07-23 13:30:58,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:30:58,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743878167] [2022-07-23 13:30:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:30:58,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:30:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:31:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:31:06,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:31:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743878167] [2022-07-23 13:31:06,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743878167] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:31:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760361347] [2022-07-23 13:31:06,878 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-23 13:31:06,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:31:06,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:31:06,879 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:31:06,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 13:31:07,278 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-23 13:31:07,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:31:07,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-23 13:31:07,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:31:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:31:08,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:31:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 39903 backedges. 0 proven. 39903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:31:29,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760361347] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:31:29,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:31:29,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-23 13:31:29,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119168925] [2022-07-23 13:31:29,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:31:29,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-23 13:31:29,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:31:29,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-23 13:31:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-23 13:31:29,765 INFO L87 Difference]: Start difference. First operand 2378 states and 2379 transitions. Second operand has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:32:08,887 INFO L93 Difference]: Finished difference Result 3246 states and 3342 transitions. [2022-07-23 13:32:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-23 13:32:08,888 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 855 [2022-07-23 13:32:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:32:08,896 INFO L225 Difference]: With dead ends: 3246 [2022-07-23 13:32:08,897 INFO L226 Difference]: Without dead ends: 3245 [2022-07-23 13:32:08,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2090 GetRequests, 1518 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-07-23 13:32:08,912 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7116 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7116 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:32:08,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7116 Valid, 1966 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 13:32:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-07-23 13:32:09,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3242. [2022-07-23 13:32:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 2859 states have (on average 1.0010493179433368) internal successors, (2862), 2860 states have internal predecessors, (2862), 381 states have call successors, (381), 381 states have call predecessors, (381), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 3243 transitions. [2022-07-23 13:32:09,014 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 3243 transitions. Word has length 855 [2022-07-23 13:32:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:32:09,015 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 3243 transitions. [2022-07-23 13:32:09,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.9868766404199474) internal successors, (1519), 194 states have internal predecessors, (1519), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 3243 transitions. [2022-07-23 13:32:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2022-07-23 13:32:09,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:32:09,030 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2022-07-23 13:32:09,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-23 13:32:09,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:32:09,249 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:32:09,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:32:09,250 INFO L85 PathProgramCache]: Analyzing trace with hash -210519367, now seen corresponding path program 7 times [2022-07-23 13:32:09,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:32:09,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924341588] [2022-07-23 13:32:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:32:09,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:32:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:32:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:32:40,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:32:40,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924341588] [2022-07-23 13:32:40,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924341588] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:32:40,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595891840] [2022-07-23 13:32:40,863 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-23 13:32:40,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:32:40,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:32:40,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:32:40,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-23 13:32:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:32:41,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 384 conjunts are in the unsatisfiable core [2022-07-23 13:32:41,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:32:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:32:42,722 INFO L328 TraceCheckSpWp]: Computing backward predicates...