./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i -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 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:57:10,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:57:10,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:57:10,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:57:10,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:57:10,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:57:10,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:57:10,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:57:10,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:57:10,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:57:10,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:57:10,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:57:10,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:57:10,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:57:10,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:57:10,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:57:10,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:57:10,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:57:10,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:57:10,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:57:10,202 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:57:10,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:57:10,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:57:10,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:57:10,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:57:10,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:57:10,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:57:10,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:57:10,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:57:10,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:57:10,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:57:10,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:57:10,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:57:10,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:57:10,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:57:10,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:57:10,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:57:10,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:57:10,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:57:10,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:57:10,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:57:10,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:57:10,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:57:10,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:57:10,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:57:10,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:57:10,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:57:10,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:57:10,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:57:10,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:57:10,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:57:10,259 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:57:10,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:57:10,259 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:57:10,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:57:10,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:57:10,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:57:10,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:57:10,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:57:10,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:57:10,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:57:10,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:57:10,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:57:10,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:57:10,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:57:10,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:57:10,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:57:10,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:57:10,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:57:10,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d [2022-07-14 13:57:10,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:57:10,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:57:10,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:57:10,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:57:10,552 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:57:10,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2022-07-14 13:57:10,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e626a3e/890e4d7bd005488397c1608b9563a94d/FLAG94d7c3d7b [2022-07-14 13:57:11,054 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:57:11,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2022-07-14 13:57:11,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e626a3e/890e4d7bd005488397c1608b9563a94d/FLAG94d7c3d7b [2022-07-14 13:57:11,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e626a3e/890e4d7bd005488397c1608b9563a94d [2022-07-14 13:57:11,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:57:11,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:57:11,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:57:11,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:57:11,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:57:11,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6b74ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11, skipping insertion in model container [2022-07-14 13:57:11,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:57:11,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:57:11,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-07-14 13:57:11,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:57:11,656 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:57:11,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-07-14 13:57:11,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:57:11,691 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:57:11,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11 WrapperNode [2022-07-14 13:57:11,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:57:11,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:57:11,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:57:11,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:57:11,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,721 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2022-07-14 13:57:11,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:57:11,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:57:11,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:57:11,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:57:11,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:57:11,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:57:11,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:57:11,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:57:11,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (1/1) ... [2022-07-14 13:57:11,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:57:11,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:11,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 13:57:11,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 13:57:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:57:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:57:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:57:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:57:11,882 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:57:11,884 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:57:12,042 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:57:12,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:57:12,047 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 13:57:12,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:57:12 BoogieIcfgContainer [2022-07-14 13:57:12,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:57:12,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:57:12,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:57:12,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:57:12,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:57:11" (1/3) ... [2022-07-14 13:57:12,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f68ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:57:12, skipping insertion in model container [2022-07-14 13:57:12,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:11" (2/3) ... [2022-07-14 13:57:12,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f68ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:57:12, skipping insertion in model container [2022-07-14 13:57:12,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:57:12" (3/3) ... [2022-07-14 13:57:12,067 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark04_conjunctive.i [2022-07-14 13:57:12,093 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:57:12,093 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 13:57:12,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:57:12,166 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@7c1b433d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a603676 [2022-07-14 13:57:12,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 13:57:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 13:57:12,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 13:57:12,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-07-14 13:57:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158760618] [2022-07-14 13:57:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158760618] [2022-07-14 13:57:12,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158760618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:57:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799159608] [2022-07-14 13:57:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:57:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:57:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,385 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,422 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-07-14 13:57:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:57:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-07-14 13:57:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,439 INFO L225 Difference]: With dead ends: 28 [2022-07-14 13:57:12,440 INFO L226 Difference]: Without dead ends: 15 [2022-07-14 13:57:12,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,446 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-07-14 13:57:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-14 13:57:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-14 13:57:12,478 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2022-07-14 13:57:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,478 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-14 13:57:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-14 13:57:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 13:57:12,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 13:57:12,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:57:12,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash 28695877, now seen corresponding path program 1 times [2022-07-14 13:57:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577030728] [2022-07-14 13:57:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577030728] [2022-07-14 13:57:12,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577030728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:57:12,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290040651] [2022-07-14 13:57:12,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:57:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:57:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,508 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,519 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-07-14 13:57:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:57:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 13:57:12,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,521 INFO L225 Difference]: With dead ends: 15 [2022-07-14 13:57:12,521 INFO L226 Difference]: Without dead ends: 14 [2022-07-14 13:57:12,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,524 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-14 13:57:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-14 13:57:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-07-14 13:57:12,534 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-07-14 13:57:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,535 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-07-14 13:57:12,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,536 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-07-14 13:57:12,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 13:57:12,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:12,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:57:12,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935623, now seen corresponding path program 1 times [2022-07-14 13:57:12,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342864855] [2022-07-14 13:57:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342864855] [2022-07-14 13:57:12,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342864855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:12,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500079282] [2022-07-14 13:57:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:12,577 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,600 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-07-14 13:57:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 13:57:12,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 13:57:12,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,601 INFO L225 Difference]: With dead ends: 21 [2022-07-14 13:57:12,601 INFO L226 Difference]: Without dead ends: 20 [2022-07-14 13:57:12,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:57:12,603 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-14 13:57:12,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-07-14 13:57:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-07-14 13:57:12,608 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2022-07-14 13:57:12,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,608 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-07-14 13:57:12,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-07-14 13:57:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 13:57:12,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:12,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:57:12,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash 180429519, now seen corresponding path program 1 times [2022-07-14 13:57:12,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161911287] [2022-07-14 13:57:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161911287] [2022-07-14 13:57:12,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161911287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:12,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785441545] [2022-07-14 13:57:12,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:12,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:12,652 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,672 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-07-14 13:57:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:12,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 13:57:12,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,673 INFO L225 Difference]: With dead ends: 18 [2022-07-14 13:57:12,674 INFO L226 Difference]: Without dead ends: 17 [2022-07-14 13:57:12,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:57:12,675 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-14 13:57:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-14 13:57:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-14 13:57:12,679 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-07-14 13:57:12,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,679 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-14 13:57:12,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-14 13:57:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:57:12,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:12,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:57:12,681 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1298347849, now seen corresponding path program 1 times [2022-07-14 13:57:12,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322510095] [2022-07-14 13:57:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322510095] [2022-07-14 13:57:12,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322510095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:12,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004329219] [2022-07-14 13:57:12,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:12,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:12,715 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,735 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-14 13:57:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:57:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,737 INFO L225 Difference]: With dead ends: 17 [2022-07-14 13:57:12,738 INFO L226 Difference]: Without dead ends: 16 [2022-07-14 13:57:12,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:57:12,739 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-14 13:57:12,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-14 13:57:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-14 13:57:12,745 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-07-14 13:57:12,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,746 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-14 13:57:12,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,746 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-14 13:57:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 13:57:12,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:12,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 13:57:12,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1594077713, now seen corresponding path program 1 times [2022-07-14 13:57:12,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408241293] [2022-07-14 13:57:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408241293] [2022-07-14 13:57:12,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408241293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202188668] [2022-07-14 13:57:12,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:12,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:12,792 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,823 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-07-14 13:57:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-14 13:57:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,825 INFO L225 Difference]: With dead ends: 20 [2022-07-14 13:57:12,825 INFO L226 Difference]: Without dead ends: 19 [2022-07-14 13:57:12,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:57:12,826 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-14 13:57:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-14 13:57:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-07-14 13:57:12,830 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2022-07-14 13:57:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,830 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-07-14 13:57:12,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-07-14 13:57:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 13:57:12,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:12,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 13:57:12,832 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:12,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,832 INFO L85 PathProgramCache]: Analyzing trace with hash -220300107, now seen corresponding path program 1 times [2022-07-14 13:57:12,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103100961] [2022-07-14 13:57:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103100961] [2022-07-14 13:57:12,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103100961] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:12,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80188798] [2022-07-14 13:57:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:12,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:12,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:12,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:57:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:12,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:13,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80188798] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:13,105 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:13,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-14 13:57:13,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977551590] [2022-07-14 13:57:13,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:13,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 13:57:13,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:13,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 13:57:13,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:57:13,107 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:13,186 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-07-14 13:57:13,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 13:57:13,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-14 13:57:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:13,187 INFO L225 Difference]: With dead ends: 41 [2022-07-14 13:57:13,187 INFO L226 Difference]: Without dead ends: 40 [2022-07-14 13:57:13,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 13:57:13,188 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-14 13:57:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-07-14 13:57:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-07-14 13:57:13,194 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 14 [2022-07-14 13:57:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:13,195 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-07-14 13:57:13,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-07-14 13:57:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:57:13,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:13,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 13:57:13,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:13,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:13,420 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -250405661, now seen corresponding path program 1 times [2022-07-14 13:57:13,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:13,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118945479] [2022-07-14 13:57:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:13,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:13,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118945479] [2022-07-14 13:57:13,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118945479] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:13,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209469593] [2022-07-14 13:57:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:13,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:13,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:57:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:13,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 13:57:13,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209469593] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:13,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:13,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2022-07-14 13:57:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142176919] [2022-07-14 13:57:13,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 13:57:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 13:57:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-07-14 13:57:13,903 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:14,149 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-07-14 13:57:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 13:57:14,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 13:57:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:14,151 INFO L225 Difference]: With dead ends: 49 [2022-07-14 13:57:14,151 INFO L226 Difference]: Without dead ends: 48 [2022-07-14 13:57:14,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2022-07-14 13:57:14,152 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 49 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:14,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 39 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:14,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-07-14 13:57:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2022-07-14 13:57:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 46 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-07-14 13:57:14,175 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 17 [2022-07-14 13:57:14,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:14,175 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-07-14 13:57:14,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-07-14 13:57:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 13:57:14,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:14,177 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:57:14,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:14,393 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,SelfDestructingSolverStorable7 [2022-07-14 13:57:14,393 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1844885817, now seen corresponding path program 2 times [2022-07-14 13:57:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:14,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295447623] [2022-07-14 13:57:14,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:14,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:14,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295447623] [2022-07-14 13:57:14,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295447623] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:14,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265738964] [2022-07-14 13:57:14,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:14,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:14,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:14,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:14,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:57:14,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 13:57:14,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:14,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:57:14,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 13:57:14,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 13:57:14,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265738964] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:14,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:14,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2022-07-14 13:57:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123361534] [2022-07-14 13:57:14,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:14,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 13:57:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:14,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 13:57:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-14 13:57:14,660 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:14,789 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2022-07-14 13:57:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 13:57:14,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 13:57:14,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:14,791 INFO L225 Difference]: With dead ends: 47 [2022-07-14 13:57:14,791 INFO L226 Difference]: Without dead ends: 46 [2022-07-14 13:57:14,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-07-14 13:57:14,792 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:14,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-14 13:57:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-14 13:57:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2022-07-14 13:57:14,798 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 35 [2022-07-14 13:57:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:14,798 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2022-07-14 13:57:14,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2022-07-14 13:57:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 13:57:14,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:14,803 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1] [2022-07-14 13:57:14,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:15,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:15,012 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:15,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1396317539, now seen corresponding path program 2 times [2022-07-14 13:57:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:15,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779998217] [2022-07-14 13:57:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:15,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:15,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779998217] [2022-07-14 13:57:15,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779998217] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973136876] [2022-07-14 13:57:15,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:15,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:15,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:15,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:57:15,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:15,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:15,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-14 13:57:15,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:15,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:16,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973136876] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:16,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:16,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 19] total 47 [2022-07-14 13:57:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698411843] [2022-07-14 13:57:16,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:16,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-14 13:57:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-14 13:57:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1938, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 13:57:16,317 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:18,090 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2022-07-14 13:57:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-14 13:57:18,091 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-14 13:57:18,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:18,091 INFO L225 Difference]: With dead ends: 131 [2022-07-14 13:57:18,091 INFO L226 Difference]: Without dead ends: 130 [2022-07-14 13:57:18,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1511, Invalid=5799, Unknown=0, NotChecked=0, Total=7310 [2022-07-14 13:57:18,094 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 452 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:18,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 74 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 13:57:18,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-14 13:57:18,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-07-14 13:57:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.0077519379844961) internal successors, (130), 129 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2022-07-14 13:57:18,104 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 45 [2022-07-14 13:57:18,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:18,104 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2022-07-14 13:57:18,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2022-07-14 13:57:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-14 13:57:18,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:18,107 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 17, 1, 1, 1, 1] [2022-07-14 13:57:18,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:18,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:18,322 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:18,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:18,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1092837661, now seen corresponding path program 3 times [2022-07-14 13:57:18,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:18,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97231889] [2022-07-14 13:57:18,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:18,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:18,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97231889] [2022-07-14 13:57:18,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97231889] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:18,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810442715] [2022-07-14 13:57:18,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:57:18,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:18,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:18,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:18,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:57:19,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-07-14 13:57:19,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:19,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 73 conjunts are in the unsatisfiable core [2022-07-14 13:57:19,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:21,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:25,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810442715] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:25,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:25,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 55, 55] total 143 [2022-07-14 13:57:25,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690174336] [2022-07-14 13:57:25,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:25,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 144 states [2022-07-14 13:57:25,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2022-07-14 13:57:25,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2466, Invalid=18126, Unknown=0, NotChecked=0, Total=20592 [2022-07-14 13:57:25,893 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand has 144 states, 143 states have (on average 2.6573426573426575) internal successors, (380), 144 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:41,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:41,041 INFO L93 Difference]: Finished difference Result 383 states and 418 transitions. [2022-07-14 13:57:41,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-07-14 13:57:41,042 INFO L78 Accepts]: Start accepts. Automaton has has 144 states, 143 states have (on average 2.6573426573426575) internal successors, (380), 144 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-07-14 13:57:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:41,044 INFO L225 Difference]: With dead ends: 383 [2022-07-14 13:57:41,044 INFO L226 Difference]: Without dead ends: 382 [2022-07-14 13:57:41,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13843 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=13517, Invalid=56973, Unknown=0, NotChecked=0, Total=70490 [2022-07-14 13:57:41,054 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3035 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 7221 mSolverCounterSat, 997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 8218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 997 IncrementalHoareTripleChecker+Valid, 7221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:41,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 217 Invalid, 8218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [997 Valid, 7221 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-14 13:57:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-07-14 13:57:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2022-07-14 13:57:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.0026246719160106) internal successors, (382), 381 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 382 transitions. [2022-07-14 13:57:41,084 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 382 transitions. Word has length 129 [2022-07-14 13:57:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:41,085 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 382 transitions. [2022-07-14 13:57:41,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 144 states, 143 states have (on average 2.6573426573426575) internal successors, (380), 144 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 382 transitions. [2022-07-14 13:57:41,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-07-14 13:57:41,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:41,092 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 54, 54, 54, 53, 1, 1, 1, 1] [2022-07-14 13:57:41,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:41,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 13:57:41,307 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:57:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1906156387, now seen corresponding path program 4 times [2022-07-14 13:57:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169954946] [2022-07-14 13:57:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10017 backedges. 0 proven. 10017 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:44,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:44,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169954946] [2022-07-14 13:57:44,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169954946] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:44,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844340265] [2022-07-14 13:57:44,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:57:44,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:44,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:44,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:44,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:57:44,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:57:44,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:44,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 217 conjunts are in the unsatisfiable core [2022-07-14 13:57:44,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:58:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 10017 backedges. 0 proven. 10017 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:58:01,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:58:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10017 backedges. 0 proven. 10017 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:58:36,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844340265] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:58:36,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:58:36,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 163, 163] total 431 [2022-07-14 13:58:36,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679414108] [2022-07-14 13:58:36,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:58:36,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 432 states [2022-07-14 13:58:36,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:58:36,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 432 interpolants. [2022-07-14 13:58:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21006, Invalid=165186, Unknown=0, NotChecked=0, Total=186192 [2022-07-14 13:58:36,343 INFO L87 Difference]: Start difference. First operand 382 states and 382 transitions. Second operand has 432 states, 431 states have (on average 2.6357308584686776) internal successors, (1136), 432 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)