./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 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/benchmark13_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 cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:46:20,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:46:20,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:46:20,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:46:20,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:46:20,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:46:20,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:46:20,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:46:20,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:46:20,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:46:20,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:46:20,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:46:20,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:46:20,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:46:20,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:46:20,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:46:20,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:46:20,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:46:20,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:46:20,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:46:20,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:46:20,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:46:20,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:46:20,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:46:20,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:46:20,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:46:20,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:46:20,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:46:20,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:46:20,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:46:20,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:46:20,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:46:20,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:46:20,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:46:20,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:46:20,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:46:20,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:46:20,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:46:20,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:46:20,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:46:20,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:46:20,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:46:20,206 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:46:20,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:46:20,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:46:20,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:46:20,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:46:20,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:46:20,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:46:20,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:46:20,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:46:20,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:46:20,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:46:20,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:46:20,210 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 [2023-02-15 22:46:20,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:46:20,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:46:20,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:46:20,377 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:46:20,377 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:46:20,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2023-02-15 22:46:21,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:46:21,439 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:46:21,440 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2023-02-15 22:46:21,444 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b68f97b5e/470665496bc740c4a5c51406a9dd341b/FLAGf4ae0770e [2023-02-15 22:46:21,461 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b68f97b5e/470665496bc740c4a5c51406a9dd341b [2023-02-15 22:46:21,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:46:21,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:46:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:46:21,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:46:21,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:46:21,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5412648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21, skipping insertion in model container [2023-02-15 22:46:21,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:46:21,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:46:21,638 WARN L237 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/benchmark13_conjunctive.i[873,886] [2023-02-15 22:46:21,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:46:21,655 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:46:21,681 WARN L237 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/benchmark13_conjunctive.i[873,886] [2023-02-15 22:46:21,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:46:21,696 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:46:21,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21 WrapperNode [2023-02-15 22:46:21,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:46:21,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:46:21,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:46:21,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:46:21,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,722 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-02-15 22:46:21,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:46:21,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:46:21,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:46:21,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:46:21,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:46:21,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:46:21,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:46:21,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:46:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (1/1) ... [2023-02-15 22:46:21,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:46:21,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:21,779 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) [2023-02-15 22:46:21,796 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 [2023-02-15 22:46:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:46:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:46:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:46:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:46:21,874 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:46:21,876 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:46:21,985 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:46:21,989 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:46:21,989 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 22:46:21,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:46:21 BoogieIcfgContainer [2023-02-15 22:46:21,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:46:21,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:46:21,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:46:21,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:46:21,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:46:21" (1/3) ... [2023-02-15 22:46:21,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6d4bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:46:21, skipping insertion in model container [2023-02-15 22:46:21,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:46:21" (2/3) ... [2023-02-15 22:46:21,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6d4bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:46:21, skipping insertion in model container [2023-02-15 22:46:21,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:46:21" (3/3) ... [2023-02-15 22:46:21,997 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark13_conjunctive.i [2023-02-15 22:46:22,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:46:22,008 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 22:46:22,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:46:22,043 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5791321f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:46:22,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 22:46:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-02-15 22:46:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 22:46:22,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 22:46:22,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 22:46:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5384107] [2023-02-15 22:46:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5384107] [2023-02-15 22:46:22,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5384107] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:22,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:22,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:46:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868984493] [2023-02-15 22:46:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:22,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:46:22,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:46:22,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:46:22,199 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-15 22:46:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,227 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-02-15 22:46:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:46:22,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2023-02-15 22:46:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,235 INFO L225 Difference]: With dead ends: 27 [2023-02-15 22:46:22,235 INFO L226 Difference]: Without dead ends: 11 [2023-02-15 22:46:22,237 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 [2023-02-15 22:46:22,239 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 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 [2023-02-15 22:46:22,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:22,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-15 22:46:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-15 22:46:22,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-02-15 22:46:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-15 22:46:22,271 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2023-02-15 22:46:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,271 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-15 22:46:22,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-15 22:46:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-02-15 22:46:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:46:22,272 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:46:22,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 22:46:22,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45708788] [2023-02-15 22:46:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:22,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45708788] [2023-02-15 22:46:22,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45708788] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:22,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:22,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:46:22,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012467828] [2023-02-15 22:46:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:22,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:46:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:22,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:46:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:46:22,344 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:22,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,386 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-15 22:46:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:46:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 22:46:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,388 INFO L225 Difference]: With dead ends: 15 [2023-02-15 22:46:22,388 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 22:46:22,388 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 [2023-02-15 22:46:22,390 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 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 [2023-02-15 22:46:22,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 22:46:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 22:46:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) 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) [2023-02-15 22:46:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 22:46:22,398 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-02-15 22:46:22,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,399 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 22:46:22,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 22:46:22,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 22:46:22,400 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:46:22,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 22:46:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181408388] [2023-02-15 22:46:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:22,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181408388] [2023-02-15 22:46:22,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181408388] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:22,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:22,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:46:22,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157730534] [2023-02-15 22:46:22,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:22,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:46:22,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:22,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:46:22,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:46:22,472 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:22,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,482 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-15 22:46:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:46:22,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 22:46:22,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,483 INFO L225 Difference]: With dead ends: 14 [2023-02-15 22:46:22,483 INFO L226 Difference]: Without dead ends: 13 [2023-02-15 22:46:22,483 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 [2023-02-15 22:46:22,484 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:22,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:22,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-15 22:46:22,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-15 22:46:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2023-02-15 22:46:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-15 22:46:22,491 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-02-15 22:46:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,492 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-15 22:46:22,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-15 22:46:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:46:22,493 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:46:22,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 22:46:22,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755331710] [2023-02-15 22:46:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:22,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755331710] [2023-02-15 22:46:22,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755331710] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:22,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:22,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:46:22,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252956313] [2023-02-15 22:46:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:22,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:46:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:46:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:46:22,555 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 22:46:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,571 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 22:46:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:46:22,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-02-15 22:46:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,572 INFO L225 Difference]: With dead ends: 16 [2023-02-15 22:46:22,572 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 22:46:22,572 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 [2023-02-15 22:46:22,573 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:22,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 22:46:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 22:46:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) 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) [2023-02-15 22:46:22,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 22:46:22,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-02-15 22:46:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,577 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 22:46:22,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 22:46:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 22:46:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 22:46:22,578 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:46:22,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 22:46:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032643098] [2023-02-15 22:46:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:22,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032643098] [2023-02-15 22:46:22,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032643098] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:22,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357697520] [2023-02-15 22:46:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:22,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:22,683 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) [2023-02-15 22:46:22,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:46:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 22:46:22,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:22,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357697520] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:22,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:22,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 22:46:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732991506] [2023-02-15 22:46:22,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 22:46:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:22,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 22:46:22,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 22:46:22,861 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 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) [2023-02-15 22:46:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,929 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-02-15 22:46:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 22:46:22,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2023-02-15 22:46:22,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,932 INFO L225 Difference]: With dead ends: 31 [2023-02-15 22:46:22,932 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 22:46:22,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:46:22,936 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:22,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 22:46:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-02-15 22:46:22,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 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) [2023-02-15 22:46:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-02-15 22:46:22,944 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2023-02-15 22:46:22,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,945 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-02-15 22:46:22,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 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) [2023-02-15 22:46:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-02-15 22:46:22,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 22:46:22,945 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 22:46:23,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:23,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-15 22:46:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:23,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849982154] [2023-02-15 22:46:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:23,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849982154] [2023-02-15 22:46:23,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849982154] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:23,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111653893] [2023-02-15 22:46:23,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:23,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:23,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:23,196 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) [2023-02-15 22:46:23,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:46:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:46:23,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:23,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111653893] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:23,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:23,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 22:46:23,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487666202] [2023-02-15 22:46:23,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:23,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 22:46:23,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:23,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 22:46:23,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:46:23,285 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-15 22:46:23,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:23,297 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-02-15 22:46:23,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:46:23,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 13 [2023-02-15 22:46:23,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:23,298 INFO L225 Difference]: With dead ends: 31 [2023-02-15 22:46:23,298 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 22:46:23,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:46:23,299 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:23,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 22:46:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-15 22:46:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 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) [2023-02-15 22:46:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2023-02-15 22:46:23,302 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 13 [2023-02-15 22:46:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:23,303 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2023-02-15 22:46:23,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-15 22:46:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2023-02-15 22:46:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 22:46:23,304 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:23,304 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 22:46:23,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:23,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-15 22:46:23,508 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:23,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-15 22:46:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:23,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995973522] [2023-02-15 22:46:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:23,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,630 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:23,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995973522] [2023-02-15 22:46:23,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995973522] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:23,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538891272] [2023-02-15 22:46:23,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:46:23,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:23,646 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) [2023-02-15 22:46:23,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:46:23,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:46:23,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:23,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 22:46:23,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:23,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538891272] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:23,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:23,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-15 22:46:23,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038045036] [2023-02-15 22:46:23,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:23,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 22:46:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:23,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 22:46:23,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-15 22:46:23,901 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 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) [2023-02-15 22:46:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:24,045 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2023-02-15 22:46:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 22:46:24,046 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 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 26 [2023-02-15 22:46:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:24,046 INFO L225 Difference]: With dead ends: 64 [2023-02-15 22:46:24,046 INFO L226 Difference]: Without dead ends: 63 [2023-02-15 22:46:24,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:46:24,048 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 52 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:24,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 56 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-15 22:46:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-02-15 22:46:24,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.125) internal successors, (63), 57 states have internal predecessors, (63), 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) [2023-02-15 22:46:24,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2023-02-15 22:46:24,066 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 26 [2023-02-15 22:46:24,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:24,066 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2023-02-15 22:46:24,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 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) [2023-02-15 22:46:24,067 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2023-02-15 22:46:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 22:46:24,067 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:24,067 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 22:46:24,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 22:46:24,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:24,268 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-15 22:46:24,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:24,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358602929] [2023-02-15 22:46:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:24,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:24,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:24,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358602929] [2023-02-15 22:46:24,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358602929] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:24,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968995787] [2023-02-15 22:46:24,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:46:24,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:24,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:24,353 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) [2023-02-15 22:46:24,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:46:24,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:46:24,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:24,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 22:46:24,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:24,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:24,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968995787] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:24,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:24,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:46:24,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197503929] [2023-02-15 22:46:24,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:24,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:46:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:46:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:46:24,482 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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) [2023-02-15 22:46:24,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:24,511 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2023-02-15 22:46:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 22:46:24,512 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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 28 [2023-02-15 22:46:24,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:24,513 INFO L225 Difference]: With dead ends: 61 [2023-02-15 22:46:24,513 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 22:46:24,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:46:24,513 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 22:46:24,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-02-15 22:46:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 59 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2023-02-15 22:46:24,519 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 28 [2023-02-15 22:46:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:24,519 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2023-02-15 22:46:24,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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) [2023-02-15 22:46:24,519 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2023-02-15 22:46:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 22:46:24,520 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:24,520 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 22:46:24,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:24,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:24,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:24,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:24,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-15 22:46:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:24,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202509380] [2023-02-15 22:46:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:24,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:25,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202509380] [2023-02-15 22:46:25,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202509380] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:25,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066091659] [2023-02-15 22:46:25,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:46:25,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:25,013 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) [2023-02-15 22:46:25,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:46:25,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:46:25,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:25,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-15 22:46:25,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:25,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:25,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066091659] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:25,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:25,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-15 22:46:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579310652] [2023-02-15 22:46:25,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:25,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-15 22:46:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-15 22:46:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-02-15 22:46:25,546 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:25,917 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2023-02-15 22:46:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-15 22:46:25,917 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-02-15 22:46:25,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:25,918 INFO L225 Difference]: With dead ends: 130 [2023-02-15 22:46:25,918 INFO L226 Difference]: Without dead ends: 129 [2023-02-15 22:46:25,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 22:46:25,920 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 122 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:25,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 94 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-15 22:46:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 118. [2023-02-15 22:46:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.1120689655172413) internal successors, (129), 117 states have internal predecessors, (129), 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) [2023-02-15 22:46:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2023-02-15 22:46:25,927 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 56 [2023-02-15 22:46:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:25,928 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2023-02-15 22:46:25,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:46:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2023-02-15 22:46:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:46:25,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:25,929 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2023-02-15 22:46:25,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 22:46:26,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:26,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:26,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:26,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 3 times [2023-02-15 22:46:26,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:26,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620671561] [2023-02-15 22:46:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:26,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620671561] [2023-02-15 22:46:26,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620671561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045783278] [2023-02-15 22:46:26,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:46:26,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:26,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:26,272 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) [2023-02-15 22:46:26,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:46:26,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:46:26,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:26,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 22:46:26,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:26,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:26,625 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:26,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045783278] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:26,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:26,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 22:46:26,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053288269] [2023-02-15 22:46:26,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:26,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:46:26,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:26,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:46:26,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:46:26,628 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 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) [2023-02-15 22:46:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:26,675 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2023-02-15 22:46:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 22:46:26,676 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 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 58 [2023-02-15 22:46:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:26,676 INFO L225 Difference]: With dead ends: 121 [2023-02-15 22:46:26,676 INFO L226 Difference]: Without dead ends: 120 [2023-02-15 22:46:26,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:46:26,677 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:26,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:26,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-15 22:46:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-02-15 22:46:26,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 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) [2023-02-15 22:46:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2023-02-15 22:46:26,684 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 58 [2023-02-15 22:46:26,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:26,684 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2023-02-15 22:46:26,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 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) [2023-02-15 22:46:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2023-02-15 22:46:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-15 22:46:26,686 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:26,686 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 22:46:26,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-15 22:46:26,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:26,891 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-15 22:46:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:26,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198026044] [2023-02-15 22:46:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:27,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:27,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198026044] [2023-02-15 22:46:27,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198026044] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:27,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750904833] [2023-02-15 22:46:27,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:46:27,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:27,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:27,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:27,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:46:27,905 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:46:27,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:27,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-15 22:46:27,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:28,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:29,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750904833] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:29,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:29,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2023-02-15 22:46:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712497085] [2023-02-15 22:46:29,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:29,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-02-15 22:46:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-02-15 22:46:29,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-02-15 22:46:29,542 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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) [2023-02-15 22:46:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:30,722 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2023-02-15 22:46:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-02-15 22:46:30,723 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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 116 [2023-02-15 22:46:30,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:30,725 INFO L225 Difference]: With dead ends: 262 [2023-02-15 22:46:30,725 INFO L226 Difference]: Without dead ends: 261 [2023-02-15 22:46:30,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-02-15 22:46:30,729 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 401 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:30,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 160 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:30,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-02-15 22:46:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 238. [2023-02-15 22:46:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 236 states have (on average 1.1059322033898304) internal successors, (261), 237 states have internal predecessors, (261), 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) [2023-02-15 22:46:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 261 transitions. [2023-02-15 22:46:30,758 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 261 transitions. Word has length 116 [2023-02-15 22:46:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:30,760 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 261 transitions. [2023-02-15 22:46:30,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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) [2023-02-15 22:46:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 261 transitions. [2023-02-15 22:46:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-02-15 22:46:30,763 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:30,764 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2023-02-15 22:46:30,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 22:46:30,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:30,969 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:30,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 4 times [2023-02-15 22:46:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:30,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136010581] [2023-02-15 22:46:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:30,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:31,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:31,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136010581] [2023-02-15 22:46:31,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136010581] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:31,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009799812] [2023-02-15 22:46:31,409 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:46:31,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:31,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:31,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:31,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:46:31,473 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:46:31,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:31,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 22:46:31,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:31,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:32,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009799812] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:32,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:32,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 22:46:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784457969] [2023-02-15 22:46:32,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:32,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 22:46:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:32,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 22:46:32,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:46:32,199 INFO L87 Difference]: Start difference. First operand 238 states and 261 transitions. Second operand has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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) [2023-02-15 22:46:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:32,290 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2023-02-15 22:46:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 22:46:32,291 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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 118 [2023-02-15 22:46:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:32,292 INFO L225 Difference]: With dead ends: 241 [2023-02-15 22:46:32,292 INFO L226 Difference]: Without dead ends: 240 [2023-02-15 22:46:32,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:46:32,293 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:32,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:32,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-02-15 22:46:32,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-02-15 22:46:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.0084033613445378) internal successors, (240), 239 states have internal predecessors, (240), 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) [2023-02-15 22:46:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2023-02-15 22:46:32,302 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 118 [2023-02-15 22:46:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:32,302 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2023-02-15 22:46:32,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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) [2023-02-15 22:46:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2023-02-15 22:46:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-15 22:46:32,309 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:32,309 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-15 22:46:32,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:32,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 22:46:32,514 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:32,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:32,514 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-15 22:46:32,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:32,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325339104] [2023-02-15 22:46:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:35,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:35,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325339104] [2023-02-15 22:46:35,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325339104] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:35,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679714097] [2023-02-15 22:46:35,775 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:46:35,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:35,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:35,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:35,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:46:35,935 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:46:35,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:35,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 95 conjunts are in the unsatisfiable core [2023-02-15 22:46:35,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:36,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:40,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679714097] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:40,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:40,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2023-02-15 22:46:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114365075] [2023-02-15 22:46:40,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:40,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-02-15 22:46:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-02-15 22:46:40,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2023-02-15 22:46:40,056 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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) [2023-02-15 22:46:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:43,673 INFO L93 Difference]: Finished difference Result 526 states and 573 transitions. [2023-02-15 22:46:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2023-02-15 22:46:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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 236 [2023-02-15 22:46:43,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:43,675 INFO L225 Difference]: With dead ends: 526 [2023-02-15 22:46:43,675 INFO L226 Difference]: Without dead ends: 525 [2023-02-15 22:46:43,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2023-02-15 22:46:43,680 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 890 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:43,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 295 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:46:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-02-15 22:46:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 478. [2023-02-15 22:46:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 476 states have (on average 1.1029411764705883) internal successors, (525), 477 states have internal predecessors, (525), 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) [2023-02-15 22:46:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 525 transitions. [2023-02-15 22:46:43,700 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 525 transitions. Word has length 236 [2023-02-15 22:46:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:43,701 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 525 transitions. [2023-02-15 22:46:43,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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) [2023-02-15 22:46:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 525 transitions. [2023-02-15 22:46:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-15 22:46:43,702 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:43,703 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2023-02-15 22:46:43,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:43,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-15 22:46:43,907 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 5 times [2023-02-15 22:46:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:43,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457509778] [2023-02-15 22:46:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:43,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:45,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:45,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457509778] [2023-02-15 22:46:45,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457509778] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:45,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454030894] [2023-02-15 22:46:45,061 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:46:45,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:45,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:45,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:45,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:46:45,174 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:46:45,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:45,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 22:46:45,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:45,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:46:47,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454030894] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:47,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:47,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 22:46:47,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468810008] [2023-02-15 22:46:47,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:47,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 22:46:47,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:47,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 22:46:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:46:47,140 INFO L87 Difference]: Start difference. First operand 478 states and 525 transitions. Second operand has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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) [2023-02-15 22:46:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:47,358 INFO L93 Difference]: Finished difference Result 481 states and 528 transitions. [2023-02-15 22:46:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 22:46:47,358 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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 238 [2023-02-15 22:46:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:47,360 INFO L225 Difference]: With dead ends: 481 [2023-02-15 22:46:47,360 INFO L226 Difference]: Without dead ends: 480 [2023-02-15 22:46:47,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:46:47,361 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:47,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 310 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-15 22:46:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-02-15 22:46:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 478 states have (on average 1.00418410041841) internal successors, (480), 479 states have internal predecessors, (480), 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) [2023-02-15 22:46:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 480 transitions. [2023-02-15 22:46:47,382 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 480 transitions. Word has length 238 [2023-02-15 22:46:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:47,382 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 480 transitions. [2023-02-15 22:46:47,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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) [2023-02-15 22:46:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 480 transitions. [2023-02-15 22:46:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-15 22:46:47,387 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:47,387 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-15 22:46:47,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:47,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 22:46:47,592 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:46:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-15 22:46:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:47,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652593671] [2023-02-15 22:46:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:47:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:00,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:47:00,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652593671] [2023-02-15 22:47:00,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652593671] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:47:00,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149126769] [2023-02-15 22:47:00,869 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:47:00,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:47:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:47:00,871 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:47:00,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:47:01,121 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:47:01,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:47:01,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 191 conjunts are in the unsatisfiable core [2023-02-15 22:47:01,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:47:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:01,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:47:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:17,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149126769] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:47:17,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:47:17,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2023-02-15 22:47:17,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349941877] [2023-02-15 22:47:17,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:47:17,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2023-02-15 22:47:17,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:47:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2023-02-15 22:47:17,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2023-02-15 22:47:17,361 INFO L87 Difference]: Start difference. First operand 480 states and 480 transitions. Second operand has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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) [2023-02-15 22:47:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:47:36,218 INFO L93 Difference]: Finished difference Result 1054 states and 1149 transitions. [2023-02-15 22:47:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2023-02-15 22:47:36,219 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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 476 [2023-02-15 22:47:36,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:47:36,225 INFO L225 Difference]: With dead ends: 1054 [2023-02-15 22:47:36,226 INFO L226 Difference]: Without dead ends: 1053 [2023-02-15 22:47:36,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1331 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2023-02-15 22:47:36,246 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2016 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 22:47:36,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 527 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 22:47:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-02-15 22:47:36,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 958. [2023-02-15 22:47:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 956 states have (on average 1.1014644351464435) internal successors, (1053), 957 states have internal predecessors, (1053), 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) [2023-02-15 22:47:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1053 transitions. [2023-02-15 22:47:36,261 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1053 transitions. Word has length 476 [2023-02-15 22:47:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:47:36,262 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1053 transitions. [2023-02-15 22:47:36,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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) [2023-02-15 22:47:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1053 transitions. [2023-02-15 22:47:36,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-02-15 22:47:36,266 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:47:36,266 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1] [2023-02-15 22:47:36,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 22:47:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 22:47:36,472 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:47:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:47:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1421856239, now seen corresponding path program 6 times [2023-02-15 22:47:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:47:36,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930100808] [2023-02-15 22:47:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:47:36,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:47:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:47:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:41,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:47:41,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930100808] [2023-02-15 22:47:41,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930100808] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:47:41,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034852749] [2023-02-15 22:47:41,064 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:47:41,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:47:41,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:47:41,065 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:47:41,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:47:41,307 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:47:41,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:47:41,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 22:47:41,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:47:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:41,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:47:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:47:48,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034852749] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:47:48,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:47:48,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 22:47:48,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380055887] [2023-02-15 22:47:48,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:47:48,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 22:47:48,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:47:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 22:47:48,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:47:48,954 INFO L87 Difference]: Start difference. First operand 958 states and 1053 transitions. Second operand has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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) [2023-02-15 22:47:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:47:49,805 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2023-02-15 22:47:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 22:47:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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 478 [2023-02-15 22:47:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:47:49,825 INFO L225 Difference]: With dead ends: 961 [2023-02-15 22:47:49,826 INFO L226 Difference]: Without dead ends: 960 [2023-02-15 22:47:49,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:47:49,828 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:47:49,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:47:49,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-02-15 22:47:49,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2023-02-15 22:47:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 958 states have (on average 1.0020876826722338) internal successors, (960), 959 states have internal predecessors, (960), 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) [2023-02-15 22:47:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 960 transitions. [2023-02-15 22:47:49,845 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 960 transitions. Word has length 478 [2023-02-15 22:47:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:47:49,845 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 960 transitions. [2023-02-15 22:47:49,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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) [2023-02-15 22:47:49,846 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 960 transitions. [2023-02-15 22:47:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-02-15 22:47:49,851 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:47:49,852 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1] [2023-02-15 22:47:49,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 22:47:50,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 22:47:50,057 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 22:47:50,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:47:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash 402445997, now seen corresponding path program 7 times [2023-02-15 22:47:50,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:47:50,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164425804] [2023-02-15 22:47:50,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:47:50,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:47:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:48:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:48:53,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:48:53,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164425804] [2023-02-15 22:48:53,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164425804] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:48:53,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905850821] [2023-02-15 22:48:53,175 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 22:48:53,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:48:53,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:48:53,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:48:53,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:48:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:48:53,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 383 conjunts are in the unsatisfiable core [2023-02-15 22:48:53,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:48:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:48:54,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:14,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905850821] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:14,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:14,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2023-02-15 22:50:14,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314941268] [2023-02-15 22:50:14,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:14,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2023-02-15 22:50:14,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2023-02-15 22:50:14,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2023-02-15 22:50:14,725 INFO L87 Difference]: Start difference. First operand 960 states and 960 transitions. Second operand has 766 states, 765 states have (on average 2.496732026143791) internal successors, (1910), 766 states have internal predecessors, (1910), 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)