./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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/bitvector/soft_float_5a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:44:56,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:44:56,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:44:56,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:44:56,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:44:56,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:44:56,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:44:56,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:44:56,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:44:56,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:44:56,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:44:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:44:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:44:56,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:44:56,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:44:56,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:44:56,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:44:56,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:44:56,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:44:56,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:44:56,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:44:56,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:44:56,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:44:56,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:44:56,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:44:56,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:44:56,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:44:56,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:44:56,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:44:56,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:44:56,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:44:56,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:44:56,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:44:56,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:44:56,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:44:56,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:44:56,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:44:56,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:44:56,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:44:56,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:44:56,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:44:56,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 13:44:56,214 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:44:56,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:44:56,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:44:56,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:44:56,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:44:56,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:44:56,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:44:56,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:44:56,217 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:44:56,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:44:56,218 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:44:56,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:44:56,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:44:56,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:44:56,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:44:56,219 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:44:56,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:44:56,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:44:56,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:44:56,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:44:56,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:44:56,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:44:56,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:44:56,222 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:44:56,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:44:56,222 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:44:56,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-02-15 13:44:56,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:44:56,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:44:56,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:44:56,439 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:44:56,439 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:44:56,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 13:44:57,452 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:44:57,695 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:44:57,696 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 13:44:57,704 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678e0268b/008f85112e1544979a4f0ad1b5d899a7/FLAG527d9340e [2023-02-15 13:44:57,717 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678e0268b/008f85112e1544979a4f0ad1b5d899a7 [2023-02-15 13:44:57,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:44:57,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:44:57,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:44:57,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:44:57,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:44:57,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59609e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57, skipping insertion in model container [2023-02-15 13:44:57,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:44:57,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:44:57,841 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/bitvector/soft_float_5a.c.cil.c[728,741] [2023-02-15 13:44:57,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:44:57,881 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:44:57,888 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/bitvector/soft_float_5a.c.cil.c[728,741] [2023-02-15 13:44:57,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:44:57,918 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:44:57,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57 WrapperNode [2023-02-15 13:44:57,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:44:57,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:44:57,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:44:57,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:44:57,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,945 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2023-02-15 13:44:57,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:44:57,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:44:57,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:44:57,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:44:57,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:44:57,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:44:57,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:44:57,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:44:57,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (1/1) ... [2023-02-15 13:44:57,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:44:58,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:44:58,018 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 13:44:58,020 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 13:44:58,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:44:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:44:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 13:44:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 13:44:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:44:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:44:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 13:44:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 13:44:58,144 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:44:58,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:44:58,581 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:44:58,586 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:44:58,587 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 13:44:58,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:58 BoogieIcfgContainer [2023-02-15 13:44:58,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:44:58,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:44:58,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:44:58,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:44:58,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:44:57" (1/3) ... [2023-02-15 13:44:58,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c714bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:44:58, skipping insertion in model container [2023-02-15 13:44:58,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:57" (2/3) ... [2023-02-15 13:44:58,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c714bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:44:58, skipping insertion in model container [2023-02-15 13:44:58,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:58" (3/3) ... [2023-02-15 13:44:58,594 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-02-15 13:44:58,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:44:58,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-02-15 13:44:58,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:44:58,646 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;@658e6551, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:44:58,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-02-15 13:44:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 13:44:58,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 13:44:58,653 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:58,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:58,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1819356335, now seen corresponding path program 1 times [2023-02-15 13:44:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:58,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27974525] [2023-02-15 13:44:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:58,839 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 13:44:58,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27974525] [2023-02-15 13:44:58,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27974525] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:58,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:44:58,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:44:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875462957] [2023-02-15 13:44:58,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:58,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:44:58,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:58,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:44:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:44:58,874 INFO L87 Difference]: Start difference. First operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:58,990 INFO L93 Difference]: Finished difference Result 257 states and 376 transitions. [2023-02-15 13:44:58,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:44:58,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 13:44:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:58,999 INFO L225 Difference]: With dead ends: 257 [2023-02-15 13:44:58,999 INFO L226 Difference]: Without dead ends: 130 [2023-02-15 13:44:59,002 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 13:44:59,005 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 83 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 370 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:44:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-02-15 13:44:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2023-02-15 13:44:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.52) internal successors, (152), 113 states have internal predecessors, (152), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2023-02-15 13:44:59,038 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 9 [2023-02-15 13:44:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,038 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2023-02-15 13:44:59,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2023-02-15 13:44:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 13:44:59,040 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:44:59,040 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash -179612527, now seen corresponding path program 1 times [2023-02-15 13:44:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596407888] [2023-02-15 13:44:59,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,119 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 13:44:59,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:59,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596407888] [2023-02-15 13:44:59,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596407888] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:59,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:44:59,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:44:59,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762490048] [2023-02-15 13:44:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:59,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:44:59,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:59,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:44:59,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:44:59,124 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:59,247 INFO L93 Difference]: Finished difference Result 265 states and 354 transitions. [2023-02-15 13:44:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:44:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 13:44:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:59,249 INFO L225 Difference]: With dead ends: 265 [2023-02-15 13:44:59,250 INFO L226 Difference]: Without dead ends: 148 [2023-02-15 13:44:59,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:44:59,254 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 128 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 343 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:44:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-02-15 13:44:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-02-15 13:44:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 122 states have internal predecessors, (164), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2023-02-15 13:44:59,277 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 14 [2023-02-15 13:44:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,279 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2023-02-15 13:44:59,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2023-02-15 13:44:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 13:44:59,280 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:44:59,280 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1273020929, now seen corresponding path program 1 times [2023-02-15 13:44:59,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476102200] [2023-02-15 13:44:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,335 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 13:44:59,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:59,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476102200] [2023-02-15 13:44:59,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476102200] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:59,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:44:59,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:44:59,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526334989] [2023-02-15 13:44:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:59,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:44:59,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:59,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:44:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:44:59,338 INFO L87 Difference]: Start difference. First operand 129 states and 172 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:59,400 INFO L93 Difference]: Finished difference Result 156 states and 201 transitions. [2023-02-15 13:44:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:44:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-15 13:44:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:59,402 INFO L225 Difference]: With dead ends: 156 [2023-02-15 13:44:59,402 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 13:44:59,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:44:59,403 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 112 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 355 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:44:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 13:44:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 129. [2023-02-15 13:44:59,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 122 states have internal predecessors, (162), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 170 transitions. [2023-02-15 13:44:59,412 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 170 transitions. Word has length 15 [2023-02-15 13:44:59,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,412 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 170 transitions. [2023-02-15 13:44:59,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2023-02-15 13:44:59,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 13:44:59,413 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,413 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:44:59,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,414 INFO L85 PathProgramCache]: Analyzing trace with hash 550260128, now seen corresponding path program 1 times [2023-02-15 13:44:59,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715283784] [2023-02-15 13:44:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 13:44:59,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:59,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715283784] [2023-02-15 13:44:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715283784] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:59,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:44:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:44:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516802259] [2023-02-15 13:44:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:59,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:44:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:44:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:44:59,450 INFO L87 Difference]: Start difference. First operand 129 states and 170 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:59,469 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2023-02-15 13:44:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:44:59,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 13:44:59,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:59,470 INFO L225 Difference]: With dead ends: 137 [2023-02-15 13:44:59,471 INFO L226 Difference]: Without dead ends: 136 [2023-02-15 13:44:59,471 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 13:44:59,472 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:44:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-02-15 13:44:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2023-02-15 13:44:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 107 states have (on average 1.4766355140186915) internal successors, (158), 119 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 166 transitions. [2023-02-15 13:44:59,480 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 166 transitions. Word has length 16 [2023-02-15 13:44:59,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,480 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 166 transitions. [2023-02-15 13:44:59,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,481 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 166 transitions. [2023-02-15 13:44:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 13:44:59,481 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,481 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:44:59,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash -119643288, now seen corresponding path program 1 times [2023-02-15 13:44:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179064668] [2023-02-15 13:44:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:44:59,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:59,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179064668] [2023-02-15 13:44:59,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179064668] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:44:59,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671929902] [2023-02-15 13:44:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:44:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:44:59,527 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 13:44:59,541 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 13:44:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 13:44:59,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:44:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:44:59,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:44:59,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671929902] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:59,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:44:59,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-02-15 13:44:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759658865] [2023-02-15 13:44:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:44:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:59,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:44:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:44:59,613 INFO L87 Difference]: Start difference. First operand 126 states and 166 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:59,643 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2023-02-15 13:44:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:44:59,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 13:44:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:59,645 INFO L225 Difference]: With dead ends: 155 [2023-02-15 13:44:59,645 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 13:44:59,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:44:59,646 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 16 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:44:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 13:44:59,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 128. [2023-02-15 13:44:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 121 states have internal predecessors, (161), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2023-02-15 13:44:59,653 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 17 [2023-02-15 13:44:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,653 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2023-02-15 13:44:59,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2023-02-15 13:44:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 13:44:59,654 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 13:44:59,859 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 13:44:59,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash -171865727, now seen corresponding path program 1 times [2023-02-15 13:44:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973450657] [2023-02-15 13:44:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:44:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 13:44:59,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:44:59,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973450657] [2023-02-15 13:44:59,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973450657] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:44:59,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:44:59,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:44:59,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252428067] [2023-02-15 13:44:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:44:59,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:44:59,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:44:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:44:59,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:44:59,915 INFO L87 Difference]: Start difference. First operand 128 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:44:59,945 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2023-02-15 13:44:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:44:59,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-15 13:44:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:44:59,948 INFO L225 Difference]: With dead ends: 161 [2023-02-15 13:44:59,948 INFO L226 Difference]: Without dead ends: 159 [2023-02-15 13:44:59,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:44:59,955 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 22 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:44:59,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 201 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:44:59,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-15 13:44:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2023-02-15 13:44:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 123 states have internal predecessors, (163), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:44:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 171 transitions. [2023-02-15 13:44:59,971 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 171 transitions. Word has length 19 [2023-02-15 13:44:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:44:59,972 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 171 transitions. [2023-02-15 13:44:59,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:44:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 171 transitions. [2023-02-15 13:44:59,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 13:44:59,974 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:44:59,975 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:44:59,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 13:44:59,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:44:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:44:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1906214428, now seen corresponding path program 1 times [2023-02-15 13:44:59,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:44:59,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452457214] [2023-02-15 13:44:59,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:44:59,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:44:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 13:45:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:00,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452457214] [2023-02-15 13:45:00,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452457214] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:00,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:00,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:45:00,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818382187] [2023-02-15 13:45:00,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:00,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:45:00,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:45:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:00,032 INFO L87 Difference]: Start difference. First operand 130 states and 171 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:45:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:00,133 INFO L93 Difference]: Finished difference Result 193 states and 257 transitions. [2023-02-15 13:45:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:45:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-02-15 13:45:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:00,136 INFO L225 Difference]: With dead ends: 193 [2023-02-15 13:45:00,136 INFO L226 Difference]: Without dead ends: 191 [2023-02-15 13:45:00,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:00,140 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 130 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:00,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 277 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:00,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-02-15 13:45:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 161. [2023-02-15 13:45:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 153 states have internal predecessors, (208), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2023-02-15 13:45:00,153 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 24 [2023-02-15 13:45:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:00,153 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2023-02-15 13:45:00,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:45:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2023-02-15 13:45:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 13:45:00,154 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:00,154 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:00,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 13:45:00,155 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1934841784, now seen corresponding path program 1 times [2023-02-15 13:45:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:00,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761379717] [2023-02-15 13:45:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:00,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 13:45:00,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:00,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761379717] [2023-02-15 13:45:00,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761379717] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:00,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:00,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:45:00,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427480987] [2023-02-15 13:45:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:00,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:45:00,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:45:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:00,218 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:45:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:00,273 INFO L93 Difference]: Finished difference Result 185 states and 245 transitions. [2023-02-15 13:45:00,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:45:00,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-02-15 13:45:00,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:00,274 INFO L225 Difference]: With dead ends: 185 [2023-02-15 13:45:00,274 INFO L226 Difference]: Without dead ends: 183 [2023-02-15 13:45:00,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:00,276 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:00,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 277 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:00,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-02-15 13:45:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 154. [2023-02-15 13:45:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.451851851851852) internal successors, (196), 146 states have internal predecessors, (196), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2023-02-15 13:45:00,282 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 24 [2023-02-15 13:45:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:00,284 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2023-02-15 13:45:00,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:45:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2023-02-15 13:45:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 13:45:00,285 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:00,285 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:00,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 13:45:00,286 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -735396699, now seen corresponding path program 1 times [2023-02-15 13:45:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:00,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172198649] [2023-02-15 13:45:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 13:45:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 13:45:00,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:00,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172198649] [2023-02-15 13:45:00,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172198649] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:00,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:00,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:45:00,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461981203] [2023-02-15 13:45:00,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:00,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:45:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:00,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:45:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:00,351 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 13:45:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:00,400 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2023-02-15 13:45:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:45:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-15 13:45:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:00,401 INFO L225 Difference]: With dead ends: 178 [2023-02-15 13:45:00,401 INFO L226 Difference]: Without dead ends: 176 [2023-02-15 13:45:00,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:00,402 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 128 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:00,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-02-15 13:45:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2023-02-15 13:45:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 140 states have internal predecessors, (187), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-02-15 13:45:00,408 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 31 [2023-02-15 13:45:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:00,408 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-02-15 13:45:00,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 13:45:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-02-15 13:45:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 13:45:00,409 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:00,409 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:00,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 13:45:00,409 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:00,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:00,410 INFO L85 PathProgramCache]: Analyzing trace with hash -764024055, now seen corresponding path program 1 times [2023-02-15 13:45:00,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:00,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793354734] [2023-02-15 13:45:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 13:45:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 13:45:00,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793354734] [2023-02-15 13:45:00,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793354734] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:00,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:00,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:45:00,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127901665] [2023-02-15 13:45:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:00,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:45:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:45:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:00,444 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 13:45:00,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:00,490 INFO L93 Difference]: Finished difference Result 170 states and 224 transitions. [2023-02-15 13:45:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:45:00,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-15 13:45:00,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:00,491 INFO L225 Difference]: With dead ends: 170 [2023-02-15 13:45:00,491 INFO L226 Difference]: Without dead ends: 168 [2023-02-15 13:45:00,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:00,492 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 129 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:00,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-02-15 13:45:00,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 139. [2023-02-15 13:45:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 131 states have internal predecessors, (175), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2023-02-15 13:45:00,498 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 31 [2023-02-15 13:45:00,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:00,498 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2023-02-15 13:45:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 13:45:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2023-02-15 13:45:00,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 13:45:00,499 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:00,499 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:00,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 13:45:00,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:00,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1822749775, now seen corresponding path program 1 times [2023-02-15 13:45:00,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:00,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417170034] [2023-02-15 13:45:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:00,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 13:45:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 13:45:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 13:45:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:00,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417170034] [2023-02-15 13:45:00,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417170034] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:00,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580806001] [2023-02-15 13:45:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:00,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:00,549 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 13:45:00,582 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 13:45:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:00,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 13:45:00,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 13:45:00,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:00,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580806001] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:00,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:00,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2023-02-15 13:45:00,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880115292] [2023-02-15 13:45:00,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:00,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 13:45:00,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:00,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 13:45:00,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-02-15 13:45:00,801 INFO L87 Difference]: Start difference. First operand 139 states and 183 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-15 13:45:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:01,086 INFO L93 Difference]: Finished difference Result 454 states and 581 transitions. [2023-02-15 13:45:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 13:45:01,086 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 37 [2023-02-15 13:45:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:01,087 INFO L225 Difference]: With dead ends: 454 [2023-02-15 13:45:01,087 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 13:45:01,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2023-02-15 13:45:01,089 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 274 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:01,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 937 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:45:01,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 13:45:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 140. [2023-02-15 13:45:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 131 states have internal predecessors, (169), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2023-02-15 13:45:01,096 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 37 [2023-02-15 13:45:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:01,096 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2023-02-15 13:45:01,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-15 13:45:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2023-02-15 13:45:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 13:45:01,097 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:01,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:01,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 13:45:01,302 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,SelfDestructingSolverStorable10 [2023-02-15 13:45:01,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1347360979, now seen corresponding path program 1 times [2023-02-15 13:45:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:01,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618333434] [2023-02-15 13:45:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 13:45:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 13:45:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 13:45:01,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:01,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618333434] [2023-02-15 13:45:01,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618333434] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:01,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:01,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 13:45:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742271828] [2023-02-15 13:45:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:01,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:45:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:45:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:45:01,398 INFO L87 Difference]: Start difference. First operand 140 states and 177 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:01,468 INFO L93 Difference]: Finished difference Result 266 states and 315 transitions. [2023-02-15 13:45:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 13:45:01,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2023-02-15 13:45:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:01,469 INFO L225 Difference]: With dead ends: 266 [2023-02-15 13:45:01,470 INFO L226 Difference]: Without dead ends: 214 [2023-02-15 13:45:01,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 13:45:01,470 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 108 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:01,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 572 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-15 13:45:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 140. [2023-02-15 13:45:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.346774193548387) internal successors, (167), 131 states have internal predecessors, (167), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:45:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2023-02-15 13:45:01,477 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 54 [2023-02-15 13:45:01,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:01,477 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2023-02-15 13:45:01,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:01,477 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2023-02-15 13:45:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 13:45:01,478 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:01,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 13:45:01,478 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 264007364, now seen corresponding path program 2 times [2023-02-15 13:45:01,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:01,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861385416] [2023-02-15 13:45:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:01,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 13:45:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 13:45:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:01,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:01,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861385416] [2023-02-15 13:45:01,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861385416] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:01,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:01,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 13:45:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015983296] [2023-02-15 13:45:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:01,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:45:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:45:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:45:01,559 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:01,656 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2023-02-15 13:45:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 13:45:01,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2023-02-15 13:45:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:01,657 INFO L225 Difference]: With dead ends: 262 [2023-02-15 13:45:01,657 INFO L226 Difference]: Without dead ends: 226 [2023-02-15 13:45:01,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 13:45:01,658 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 160 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:01,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 679 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-02-15 13:45:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 165. [2023-02-15 13:45:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 148 states have (on average 1.337837837837838) internal successors, (198), 155 states have internal predecessors, (198), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-15 13:45:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2023-02-15 13:45:01,665 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 58 [2023-02-15 13:45:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:01,665 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2023-02-15 13:45:01,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2023-02-15 13:45:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 13:45:01,666 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:01,666 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:01,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 13:45:01,666 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash 264009286, now seen corresponding path program 1 times [2023-02-15 13:45:01,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:01,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591022967] [2023-02-15 13:45:01,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:01,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 13:45:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 13:45:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 13:45:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:01,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591022967] [2023-02-15 13:45:01,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591022967] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:01,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403486952] [2023-02-15 13:45:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:01,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:01,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:01,777 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 13:45:01,827 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 13:45:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:01,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 13:45:01,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 13:45:01,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:45:01,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403486952] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:01,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:45:01,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2023-02-15 13:45:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729578248] [2023-02-15 13:45:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:01,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:45:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:01,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:45:01,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:45:01,933 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 13:45:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:02,023 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2023-02-15 13:45:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 13:45:02,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2023-02-15 13:45:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:02,025 INFO L225 Difference]: With dead ends: 306 [2023-02-15 13:45:02,025 INFO L226 Difference]: Without dead ends: 254 [2023-02-15 13:45:02,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:02,026 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:02,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 599 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:02,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-15 13:45:02,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 187. [2023-02-15 13:45:02,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 175 states have internal predecessors, (220), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-15 13:45:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 233 transitions. [2023-02-15 13:45:02,033 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 233 transitions. Word has length 58 [2023-02-15 13:45:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:02,033 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 233 transitions. [2023-02-15 13:45:02,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 13:45:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 233 transitions. [2023-02-15 13:45:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 13:45:02,034 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:02,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:02,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:02,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:02,239 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1694284065, now seen corresponding path program 1 times [2023-02-15 13:45:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:02,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180162758] [2023-02-15 13:45:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 13:45:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 13:45:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-02-15 13:45:02,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:02,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180162758] [2023-02-15 13:45:02,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180162758] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:02,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:02,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-15 13:45:02,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570956553] [2023-02-15 13:45:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:02,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:45:02,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:45:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-02-15 13:45:02,358 INFO L87 Difference]: Start difference. First operand 187 states and 233 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:02,505 INFO L93 Difference]: Finished difference Result 432 states and 508 transitions. [2023-02-15 13:45:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 13:45:02,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2023-02-15 13:45:02,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:02,506 INFO L225 Difference]: With dead ends: 432 [2023-02-15 13:45:02,507 INFO L226 Difference]: Without dead ends: 398 [2023-02-15 13:45:02,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:02,507 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 357 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:02,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 607 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-02-15 13:45:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 211. [2023-02-15 13:45:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 13:45:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2023-02-15 13:45:02,516 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 63 [2023-02-15 13:45:02,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:02,516 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2023-02-15 13:45:02,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:02,517 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2023-02-15 13:45:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 13:45:02,517 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:02,517 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:02,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-15 13:45:02,518 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1694282143, now seen corresponding path program 1 times [2023-02-15 13:45:02,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:02,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004595864] [2023-02-15 13:45:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:02,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 13:45:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 13:45:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,625 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:02,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:02,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004595864] [2023-02-15 13:45:02,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004595864] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:02,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128967892] [2023-02-15 13:45:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:02,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:02,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:02,642 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 13:45:02,695 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 13:45:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:02,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 13:45:02,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-02-15 13:45:02,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-15 13:45:02,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128967892] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:02,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:02,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2023-02-15 13:45:02,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838836827] [2023-02-15 13:45:02,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:02,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 13:45:02,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:02,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 13:45:02,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:02,847 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 13:45:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:03,139 INFO L93 Difference]: Finished difference Result 455 states and 577 transitions. [2023-02-15 13:45:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 13:45:03,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 63 [2023-02-15 13:45:03,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:03,141 INFO L225 Difference]: With dead ends: 455 [2023-02-15 13:45:03,141 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 13:45:03,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-02-15 13:45:03,142 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 226 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:03,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 659 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 13:45:03,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2023-02-15 13:45:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 184 states have (on average 1.2880434782608696) internal successors, (237), 191 states have internal predecessors, (237), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 13:45:03,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 252 transitions. [2023-02-15 13:45:03,155 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 252 transitions. Word has length 63 [2023-02-15 13:45:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:03,155 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 252 transitions. [2023-02-15 13:45:03,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 13:45:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 252 transitions. [2023-02-15 13:45:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 13:45:03,156 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:03,156 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:03,171 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 13:45:03,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 13:45:03,361 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:03,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1797395163, now seen corresponding path program 1 times [2023-02-15 13:45:03,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:03,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329962334] [2023-02-15 13:45:03,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:03,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-15 13:45:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-15 13:45:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:03,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:03,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329962334] [2023-02-15 13:45:03,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329962334] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:03,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879877995] [2023-02-15 13:45:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:03,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:03,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:03,446 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 13:45:03,493 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 13:45:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:03,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 13:45:03,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 13:45:03,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:03,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879877995] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:03,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:03,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-02-15 13:45:03,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651181177] [2023-02-15 13:45:03,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:03,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 13:45:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:03,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 13:45:03,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:03,671 INFO L87 Difference]: Start difference. First operand 204 states and 252 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:03,848 INFO L93 Difference]: Finished difference Result 708 states and 905 transitions. [2023-02-15 13:45:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 13:45:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-02-15 13:45:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:03,850 INFO L225 Difference]: With dead ends: 708 [2023-02-15 13:45:03,850 INFO L226 Difference]: Without dead ends: 532 [2023-02-15 13:45:03,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2023-02-15 13:45:03,851 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 221 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:03,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 557 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-02-15 13:45:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 231. [2023-02-15 13:45:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 211 states have (on average 1.2843601895734598) internal successors, (271), 218 states have internal predecessors, (271), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 13:45:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2023-02-15 13:45:03,870 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 66 [2023-02-15 13:45:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:03,870 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2023-02-15 13:45:03,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2023-02-15 13:45:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 13:45:03,871 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:03,872 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:03,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:04,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-15 13:45:04,077 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:04,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1155393431, now seen corresponding path program 1 times [2023-02-15 13:45:04,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:04,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197229575] [2023-02-15 13:45:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:04,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 13:45:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 13:45:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:04,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:04,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197229575] [2023-02-15 13:45:04,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197229575] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:04,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888606930] [2023-02-15 13:45:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:04,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:04,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:04,250 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 13:45:04,251 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 13:45:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:04,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 13:45:04,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 13:45:04,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:04,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888606930] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:04,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:04,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-15 13:45:04,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299176658] [2023-02-15 13:45:04,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:04,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 13:45:04,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:04,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 13:45:04,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 13:45:04,418 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:45:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:04,714 INFO L93 Difference]: Finished difference Result 547 states and 690 transitions. [2023-02-15 13:45:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 13:45:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2023-02-15 13:45:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:04,716 INFO L225 Difference]: With dead ends: 547 [2023-02-15 13:45:04,716 INFO L226 Difference]: Without dead ends: 357 [2023-02-15 13:45:04,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2023-02-15 13:45:04,718 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 168 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:04,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 359 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-02-15 13:45:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 224. [2023-02-15 13:45:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.2598039215686274) internal successors, (257), 211 states have internal predecessors, (257), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 13:45:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2023-02-15 13:45:04,746 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 70 [2023-02-15 13:45:04,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:04,746 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2023-02-15 13:45:04,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:45:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2023-02-15 13:45:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 13:45:04,747 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:04,747 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:04,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:04,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 13:45:04,948 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 216023387, now seen corresponding path program 2 times [2023-02-15 13:45:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:04,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086139114] [2023-02-15 13:45:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:04,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:05,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-15 13:45:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-15 13:45:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:05,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086139114] [2023-02-15 13:45:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086139114] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:05,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628538413] [2023-02-15 13:45:05,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:05,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:05,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:05,097 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 13:45:05,097 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 13:45:05,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:45:05,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:05,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 13:45:05,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 13:45:05,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:05,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628538413] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:05,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:05,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-15 13:45:05,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182872956] [2023-02-15 13:45:05,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:05,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 13:45:05,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 13:45:05,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-02-15 13:45:05,428 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:05,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:05,763 INFO L93 Difference]: Finished difference Result 1080 states and 1393 transitions. [2023-02-15 13:45:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 13:45:05,764 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-02-15 13:45:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:05,766 INFO L225 Difference]: With dead ends: 1080 [2023-02-15 13:45:05,766 INFO L226 Difference]: Without dead ends: 904 [2023-02-15 13:45:05,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 13:45:05,768 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 621 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:05,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 704 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:45:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-02-15 13:45:05,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 271. [2023-02-15 13:45:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.254980079681275) internal successors, (315), 258 states have internal predecessors, (315), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 13:45:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 330 transitions. [2023-02-15 13:45:05,787 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 330 transitions. Word has length 86 [2023-02-15 13:45:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:05,788 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 330 transitions. [2023-02-15 13:45:05,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 330 transitions. [2023-02-15 13:45:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 13:45:05,789 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:05,789 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:05,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:05,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:05,994 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:05,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:05,994 INFO L85 PathProgramCache]: Analyzing trace with hash -584775959, now seen corresponding path program 2 times [2023-02-15 13:45:05,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:05,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670563327] [2023-02-15 13:45:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:05,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 13:45:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 13:45:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:06,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:06,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670563327] [2023-02-15 13:45:06,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670563327] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835599047] [2023-02-15 13:45:06,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:06,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:06,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:06,201 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 13:45:06,205 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 13:45:06,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:45:06,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:06,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 13:45:06,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-02-15 13:45:06,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:45:06,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835599047] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:06,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:45:06,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2023-02-15 13:45:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563005108] [2023-02-15 13:45:06,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:06,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 13:45:06,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 13:45:06,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-02-15 13:45:06,558 INFO L87 Difference]: Start difference. First operand 271 states and 330 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:07,080 INFO L93 Difference]: Finished difference Result 561 states and 654 transitions. [2023-02-15 13:45:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 13:45:07,081 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2023-02-15 13:45:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:07,082 INFO L225 Difference]: With dead ends: 561 [2023-02-15 13:45:07,082 INFO L226 Difference]: Without dead ends: 527 [2023-02-15 13:45:07,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2023-02-15 13:45:07,083 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 496 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:07,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1206 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:45:07,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-02-15 13:45:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 302. [2023-02-15 13:45:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2633451957295374) internal successors, (355), 288 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2023-02-15 13:45:07,101 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 90 [2023-02-15 13:45:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:07,102 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2023-02-15 13:45:07,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2023-02-15 13:45:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 13:45:07,103 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:07,103 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:07,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-15 13:45:07,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:07,308 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:07,309 INFO L85 PathProgramCache]: Analyzing trace with hash -527519579, now seen corresponding path program 1 times [2023-02-15 13:45:07,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:07,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239257063] [2023-02-15 13:45:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:07,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 13:45:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 13:45:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 13:45:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239257063] [2023-02-15 13:45:07,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239257063] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806000577] [2023-02-15 13:45:07,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:07,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:07,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:07,411 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 13:45:07,440 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 13:45:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 13:45:07,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 13:45:07,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 13:45:07,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806000577] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:07,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:07,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-15 13:45:07,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105405072] [2023-02-15 13:45:07,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:07,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 13:45:07,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:07,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 13:45:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:45:07,555 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 13:45:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:07,618 INFO L93 Difference]: Finished difference Result 480 states and 586 transitions. [2023-02-15 13:45:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 13:45:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 90 [2023-02-15 13:45:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:07,620 INFO L225 Difference]: With dead ends: 480 [2023-02-15 13:45:07,620 INFO L226 Difference]: Without dead ends: 424 [2023-02-15 13:45:07,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:07,621 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:07,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 607 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:07,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-02-15 13:45:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 326. [2023-02-15 13:45:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 309 states have internal predecessors, (385), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2023-02-15 13:45:07,638 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 90 [2023-02-15 13:45:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:07,638 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2023-02-15 13:45:07,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 13:45:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2023-02-15 13:45:07,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 13:45:07,639 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:07,639 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:07,646 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 13:45:07,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:07,844 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:07,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:07,845 INFO L85 PathProgramCache]: Analyzing trace with hash -527517657, now seen corresponding path program 1 times [2023-02-15 13:45:07,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:07,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728819447] [2023-02-15 13:45:07,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:07,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 13:45:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 13:45:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:08,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:08,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728819447] [2023-02-15 13:45:08,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728819447] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:08,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649861430] [2023-02-15 13:45:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:08,130 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 13:45:08,171 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 13:45:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:08,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 13:45:08,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 13:45:08,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 13:45:08,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649861430] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:08,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:08,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 20 [2023-02-15 13:45:08,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086623209] [2023-02-15 13:45:08,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:08,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 13:45:08,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:08,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 13:45:08,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-02-15 13:45:08,516 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-15 13:45:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:08,936 INFO L93 Difference]: Finished difference Result 741 states and 924 transitions. [2023-02-15 13:45:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 13:45:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 90 [2023-02-15 13:45:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:08,938 INFO L225 Difference]: With dead ends: 741 [2023-02-15 13:45:08,938 INFO L226 Difference]: Without dead ends: 507 [2023-02-15 13:45:08,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2023-02-15 13:45:08,940 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 271 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:08,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1138 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:45:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-02-15 13:45:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 326. [2023-02-15 13:45:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 309 states have internal predecessors, (381), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 398 transitions. [2023-02-15 13:45:08,958 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 398 transitions. Word has length 90 [2023-02-15 13:45:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:08,958 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 398 transitions. [2023-02-15 13:45:08,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-15 13:45:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 398 transitions. [2023-02-15 13:45:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 13:45:08,961 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:08,961 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:08,966 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 13:45:09,166 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,SelfDestructingSolverStorable21 [2023-02-15 13:45:09,166 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -29290607, now seen corresponding path program 3 times [2023-02-15 13:45:09,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:09,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360738789] [2023-02-15 13:45:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 13:45:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 13:45:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:09,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:09,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360738789] [2023-02-15 13:45:09,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360738789] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:09,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799733841] [2023-02-15 13:45:09,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:45:09,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:09,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:09,376 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 13:45:09,378 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 13:45:09,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-02-15 13:45:09,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:09,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 13:45:09,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 13:45:09,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:45:09,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799733841] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:09,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:45:09,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-02-15 13:45:09,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827215575] [2023-02-15 13:45:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:09,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:45:09,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:45:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-02-15 13:45:09,485 INFO L87 Difference]: Start difference. First operand 326 states and 398 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:09,581 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2023-02-15 13:45:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 13:45:09,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2023-02-15 13:45:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:09,583 INFO L225 Difference]: With dead ends: 389 [2023-02-15 13:45:09,583 INFO L226 Difference]: Without dead ends: 387 [2023-02-15 13:45:09,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-02-15 13:45:09,584 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 151 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:09,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 722 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-02-15 13:45:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 317. [2023-02-15 13:45:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 300 states have internal predecessors, (371), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2023-02-15 13:45:09,600 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 95 [2023-02-15 13:45:09,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:09,601 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2023-02-15 13:45:09,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2023-02-15 13:45:09,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 13:45:09,602 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:09,602 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:09,608 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 13:45:09,808 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,SelfDestructingSolverStorable22 [2023-02-15 13:45:09,809 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:09,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash 27967695, now seen corresponding path program 2 times [2023-02-15 13:45:09,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:09,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573104281] [2023-02-15 13:45:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 13:45:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 13:45:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:10,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:10,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573104281] [2023-02-15 13:45:10,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573104281] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:10,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176276227] [2023-02-15 13:45:10,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:10,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:10,037 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 13:45:10,038 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 13:45:10,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 13:45:10,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:10,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 13:45:10,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 13:45:10,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:45:10,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176276227] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:10,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:45:10,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2023-02-15 13:45:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989980798] [2023-02-15 13:45:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:10,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:45:10,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:45:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-02-15 13:45:10,239 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:10,355 INFO L93 Difference]: Finished difference Result 407 states and 481 transitions. [2023-02-15 13:45:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 13:45:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2023-02-15 13:45:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:10,356 INFO L225 Difference]: With dead ends: 407 [2023-02-15 13:45:10,357 INFO L226 Difference]: Without dead ends: 376 [2023-02-15 13:45:10,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-02-15 13:45:10,357 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 209 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:10,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 591 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:10,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-02-15 13:45:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 312. [2023-02-15 13:45:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 291 states have (on average 1.2474226804123711) internal successors, (363), 295 states have internal predecessors, (363), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 380 transitions. [2023-02-15 13:45:10,372 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 380 transitions. Word has length 95 [2023-02-15 13:45:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:10,372 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 380 transitions. [2023-02-15 13:45:10,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 380 transitions. [2023-02-15 13:45:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-02-15 13:45:10,373 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:10,374 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:10,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-15 13:45:10,578 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,SelfDestructingSolverStorable23 [2023-02-15 13:45:10,579 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 375111080, now seen corresponding path program 1 times [2023-02-15 13:45:10,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:10,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993388288] [2023-02-15 13:45:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 13:45:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 13:45:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:10,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:10,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993388288] [2023-02-15 13:45:10,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993388288] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:10,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057558268] [2023-02-15 13:45:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:10,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:10,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:10,831 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 13:45:10,831 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 13:45:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:10,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 13:45:10,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 38 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 13:45:11,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:11,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057558268] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:11,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:11,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2023-02-15 13:45:11,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223870101] [2023-02-15 13:45:11,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 13:45:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:11,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 13:45:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2023-02-15 13:45:11,262 INFO L87 Difference]: Start difference. First operand 312 states and 380 transitions. Second operand has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:45:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:31,046 INFO L93 Difference]: Finished difference Result 817 states and 1030 transitions. [2023-02-15 13:45:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 13:45:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2023-02-15 13:45:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:31,048 INFO L225 Difference]: With dead ends: 817 [2023-02-15 13:45:31,048 INFO L226 Difference]: Without dead ends: 579 [2023-02-15 13:45:31,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=638, Invalid=1166, Unknown=2, NotChecked=0, Total=1806 [2023-02-15 13:45:31,050 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 350 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:31,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 944 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 13:45:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-02-15 13:45:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 313. [2023-02-15 13:45:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2157534246575343) internal successors, (355), 296 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2023-02-15 13:45:31,086 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 100 [2023-02-15 13:45:31,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:31,086 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2023-02-15 13:45:31,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:45:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2023-02-15 13:45:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-02-15 13:45:31,088 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:31,088 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:31,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:31,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-02-15 13:45:31,293 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1300138776, now seen corresponding path program 1 times [2023-02-15 13:45:31,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:31,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609610009] [2023-02-15 13:45:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-02-15 13:45:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 13:45:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:31,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609610009] [2023-02-15 13:45:31,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609610009] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030140775] [2023-02-15 13:45:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:31,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:31,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:31,638 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 13:45:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:31,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 13:45:31,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 13:45:31,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:32,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030140775] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:32,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:32,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-02-15 13:45:32,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425300769] [2023-02-15 13:45:32,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:32,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-15 13:45:32,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-15 13:45:32,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 13:45:32,451 INFO L87 Difference]: Start difference. First operand 313 states and 372 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:33,211 INFO L93 Difference]: Finished difference Result 1881 states and 2434 transitions. [2023-02-15 13:45:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-15 13:45:33,211 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 131 [2023-02-15 13:45:33,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:33,216 INFO L225 Difference]: With dead ends: 1881 [2023-02-15 13:45:33,216 INFO L226 Difference]: Without dead ends: 1665 [2023-02-15 13:45:33,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 13:45:33,218 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1472 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:33,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 895 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:45:33,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2023-02-15 13:45:33,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 392. [2023-02-15 13:45:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 371 states have (on average 1.2129380053908356) internal successors, (450), 375 states have internal predecessors, (450), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 13:45:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 467 transitions. [2023-02-15 13:45:33,286 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 467 transitions. Word has length 131 [2023-02-15 13:45:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:33,286 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 467 transitions. [2023-02-15 13:45:33,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 13:45:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 467 transitions. [2023-02-15 13:45:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-02-15 13:45:33,288 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:33,288 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:33,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-15 13:45:33,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:33,492 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1457790758, now seen corresponding path program 2 times [2023-02-15 13:45:33,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:33,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704185766] [2023-02-15 13:45:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:33,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-15 13:45:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 13:45:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704185766] [2023-02-15 13:45:33,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704185766] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579326545] [2023-02-15 13:45:33,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:33,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:33,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:34,009 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:34,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 13:45:34,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:45:34,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:34,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 13:45:34,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 13:45:34,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 13:45:35,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579326545] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:35,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:35,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 37 [2023-02-15 13:45:35,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822116304] [2023-02-15 13:45:35,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:35,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-15 13:45:35,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:35,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-15 13:45:35,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 13:45:35,016 INFO L87 Difference]: Start difference. First operand 392 states and 467 transitions. Second operand has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 13:45:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:36,854 INFO L93 Difference]: Finished difference Result 1174 states and 1425 transitions. [2023-02-15 13:45:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 13:45:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 145 [2023-02-15 13:45:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:36,857 INFO L225 Difference]: With dead ends: 1174 [2023-02-15 13:45:36,857 INFO L226 Difference]: Without dead ends: 954 [2023-02-15 13:45:36,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 13:45:36,859 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 810 mSDsluCounter, 4326 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:36,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 4522 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 13:45:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-02-15 13:45:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 430. [2023-02-15 13:45:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.2235872235872236) internal successors, (498), 409 states have internal predecessors, (498), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 13:45:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 521 transitions. [2023-02-15 13:45:36,886 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 521 transitions. Word has length 145 [2023-02-15 13:45:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:36,886 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 521 transitions. [2023-02-15 13:45:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 13:45:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 521 transitions. [2023-02-15 13:45:36,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 13:45:36,887 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:36,887 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:36,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-15 13:45:37,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-15 13:45:37,092 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:37,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:37,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1324169322, now seen corresponding path program 1 times [2023-02-15 13:45:37,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:37,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795785696] [2023-02-15 13:45:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 13:45:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 13:45:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 4 proven. 690 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 13:45:37,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:37,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795785696] [2023-02-15 13:45:37,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795785696] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:37,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783428479] [2023-02-15 13:45:37,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:37,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:37,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:37,641 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:37,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 13:45:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:37,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 13:45:37,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2023-02-15 13:45:37,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:45:37,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783428479] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:37,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:45:37,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2023-02-15 13:45:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540194017] [2023-02-15 13:45:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:37,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 13:45:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 13:45:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2023-02-15 13:45:37,946 INFO L87 Difference]: Start difference. First operand 430 states and 521 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 13:45:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:38,097 INFO L93 Difference]: Finished difference Result 517 states and 616 transitions. [2023-02-15 13:45:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 13:45:38,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2023-02-15 13:45:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:38,099 INFO L225 Difference]: With dead ends: 517 [2023-02-15 13:45:38,099 INFO L226 Difference]: Without dead ends: 515 [2023-02-15 13:45:38,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 13:45:38,100 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 119 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:38,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 755 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:38,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-02-15 13:45:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 449. [2023-02-15 13:45:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 428 states have internal predecessors, (519), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 13:45:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 542 transitions. [2023-02-15 13:45:38,157 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 542 transitions. Word has length 151 [2023-02-15 13:45:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:38,158 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 542 transitions. [2023-02-15 13:45:38,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 13:45:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 542 transitions. [2023-02-15 13:45:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 13:45:38,159 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:38,159 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:38,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:38,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-15 13:45:38,360 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2078784474, now seen corresponding path program 1 times [2023-02-15 13:45:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:38,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696879393] [2023-02-15 13:45:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 13:45:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 13:45:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-02-15 13:45:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:38,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696879393] [2023-02-15 13:45:38,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696879393] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:38,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:38,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:45:38,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071823191] [2023-02-15 13:45:38,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:45:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:45:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:45:38,453 INFO L87 Difference]: Start difference. First operand 449 states and 542 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:38,496 INFO L93 Difference]: Finished difference Result 765 states and 947 transitions. [2023-02-15 13:45:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:45:38,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 151 [2023-02-15 13:45:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:38,498 INFO L225 Difference]: With dead ends: 765 [2023-02-15 13:45:38,498 INFO L226 Difference]: Without dead ends: 493 [2023-02-15 13:45:38,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:45:38,499 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:38,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-02-15 13:45:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2023-02-15 13:45:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 446 states have (on average 1.2085201793721974) internal successors, (539), 448 states have internal predecessors, (539), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 13:45:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 562 transitions. [2023-02-15 13:45:38,528 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 562 transitions. Word has length 151 [2023-02-15 13:45:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:38,529 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 562 transitions. [2023-02-15 13:45:38,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 13:45:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 562 transitions. [2023-02-15 13:45:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 13:45:38,530 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:38,530 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:38,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-15 13:45:38,530 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:38,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1134006928, now seen corresponding path program 1 times [2023-02-15 13:45:38,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:38,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816523370] [2023-02-15 13:45:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:38,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 13:45:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 13:45:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,728 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 13:45:38,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:38,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816523370] [2023-02-15 13:45:38,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816523370] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:38,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496484624] [2023-02-15 13:45:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:38,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:38,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:38,730 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:38,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 13:45:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:38,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-15 13:45:38,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 13:45:38,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 13:45:39,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496484624] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:39,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:39,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2023-02-15 13:45:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341730868] [2023-02-15 13:45:39,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:39,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 13:45:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 13:45:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-02-15 13:45:39,029 INFO L87 Difference]: Start difference. First operand 469 states and 562 transitions. Second operand has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 13:45:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:40,018 INFO L93 Difference]: Finished difference Result 1396 states and 1606 transitions. [2023-02-15 13:45:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-15 13:45:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 152 [2023-02-15 13:45:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:40,021 INFO L225 Difference]: With dead ends: 1396 [2023-02-15 13:45:40,022 INFO L226 Difference]: Without dead ends: 1347 [2023-02-15 13:45:40,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2023-02-15 13:45:40,023 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 840 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:40,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 3703 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 13:45:40,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2023-02-15 13:45:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 505. [2023-02-15 13:45:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 480 states have (on average 1.2145833333333333) internal successors, (583), 479 states have internal predecessors, (583), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 21 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 13:45:40,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 612 transitions. [2023-02-15 13:45:40,066 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 612 transitions. Word has length 152 [2023-02-15 13:45:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:40,066 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 612 transitions. [2023-02-15 13:45:40,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 13:45:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 612 transitions. [2023-02-15 13:45:40,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 13:45:40,068 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:40,068 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:40,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-02-15 13:45:40,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:40,273 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1134005006, now seen corresponding path program 1 times [2023-02-15 13:45:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141899973] [2023-02-15 13:45:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 13:45:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 13:45:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 4 proven. 696 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 13:45:40,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:40,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141899973] [2023-02-15 13:45:40,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141899973] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:40,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408734831] [2023-02-15 13:45:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:40,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:40,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:40,797 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:40,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 13:45:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:40,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-15 13:45:40,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 13:45:41,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 13:45:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408734831] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:41,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:41,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 40 [2023-02-15 13:45:41,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065387699] [2023-02-15 13:45:41,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:41,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 13:45:41,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:41,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 13:45:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 13:45:41,728 INFO L87 Difference]: Start difference. First operand 505 states and 612 transitions. Second operand has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 13:45:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:43,896 INFO L93 Difference]: Finished difference Result 1453 states and 1753 transitions. [2023-02-15 13:45:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-15 13:45:43,896 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 152 [2023-02-15 13:45:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:43,899 INFO L225 Difference]: With dead ends: 1453 [2023-02-15 13:45:43,899 INFO L226 Difference]: Without dead ends: 1120 [2023-02-15 13:45:43,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2023-02-15 13:45:43,901 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 672 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:43,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 4952 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 13:45:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-02-15 13:45:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 519. [2023-02-15 13:45:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 494 states have (on average 1.2186234817813766) internal successors, (602), 492 states have internal predecessors, (602), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 13:45:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 631 transitions. [2023-02-15 13:45:43,931 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 631 transitions. Word has length 152 [2023-02-15 13:45:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:43,932 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 631 transitions. [2023-02-15 13:45:43,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 13:45:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 631 transitions. [2023-02-15 13:45:43,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-02-15 13:45:43,933 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:43,934 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:43,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-02-15 13:45:44,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:44,138 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:45:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:44,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2041814602, now seen corresponding path program 1 times [2023-02-15 13:45:44,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:44,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096094247] [2023-02-15 13:45:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:44,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 13:45:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 13:45:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-02-15 13:45:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-15 13:45:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:44,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:44,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096094247] [2023-02-15 13:45:44,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096094247] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:44,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002810722] [2023-02-15 13:45:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:44,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:44,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:44,689 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:44,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 13:45:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:44,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 13:45:44,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 38 proven. 765 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 13:45:45,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 13:45:45,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002810722] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:45,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:45,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2023-02-15 13:45:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266150050] [2023-02-15 13:45:45,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:45,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-15 13:45:45,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:45,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-15 13:45:45,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2023-02-15 13:45:45,939 INFO L87 Difference]: Start difference. First operand 519 states and 631 transitions. Second operand has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:45:57,121 WARN L233 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 66 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:46:06,127 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 62 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:46:08,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 13:46:18,268 WARN L233 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 58 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:46:23,954 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 53 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:46:29,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 13:46:31,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 13:46:52,638 WARN L233 SmtUtils]: Spent 12.49s on a formula simplification. DAG size of input: 88 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:47:03,220 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:47:09,892 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 67 DAG size of output: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 13:49:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:28,745 INFO L93 Difference]: Finished difference Result 1571 states and 1984 transitions. [2023-02-15 13:49:28,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-02-15 13:49:28,761 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 157 [2023-02-15 13:49:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:28,767 INFO L225 Difference]: With dead ends: 1571 [2023-02-15 13:49:28,767 INFO L226 Difference]: Without dead ends: 1202 [2023-02-15 13:49:28,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2493 ImplicationChecksByTransitivity, 213.9s TimeCoverageRelationStatistics Valid=2900, Invalid=7175, Unknown=25, NotChecked=0, Total=10100 [2023-02-15 13:49:28,772 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 511 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 3898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:28,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 2841 Invalid, 3898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3865 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2023-02-15 13:49:28,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2023-02-15 13:49:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 557. [2023-02-15 13:49:28,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 532 states have (on average 1.1954887218045114) internal successors, (636), 530 states have internal predecessors, (636), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 13:49:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 665 transitions. [2023-02-15 13:49:28,820 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 665 transitions. Word has length 157 [2023-02-15 13:49:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:28,820 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 665 transitions. [2023-02-15 13:49:28,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 13:49:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 665 transitions. [2023-02-15 13:49:28,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-02-15 13:49:28,822 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:28,823 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:28,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-02-15 13:49:29,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:29,028 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 13:49:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:29,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1056938998, now seen corresponding path program 2 times [2023-02-15 13:49:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:29,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560622428] [2023-02-15 13:49:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:29,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:49:29,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 13:49:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:49:29,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 13:49:29,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 13:49:29,150 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-02-15 13:49:29,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-02-15 13:49:29,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-02-15 13:49:29,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-02-15 13:49:29,156 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:29,159 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:49:29,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:49:29 BoogieIcfgContainer [2023-02-15 13:49:29,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:49:29,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:49:29,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:49:29,231 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:49:29,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:58" (3/4) ... [2023-02-15 13:49:29,233 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 13:49:29,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:49:29,237 INFO L158 Benchmark]: Toolchain (without parser) took 271513.51ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 134.9MB in the beginning and 234.6MB in the end (delta: -99.8MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,237 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:49:29,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.96ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 121.3MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.73ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,241 INFO L158 Benchmark]: Boogie Preprocessor took 25.85ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,242 INFO L158 Benchmark]: RCFGBuilder took 613.89ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 95.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,242 INFO L158 Benchmark]: TraceAbstraction took 270641.00ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 94.8MB in the beginning and 234.6MB in the end (delta: -139.9MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2023-02-15 13:49:29,243 INFO L158 Benchmark]: Witness Printer took 2.52ms. Allocated memory is still 352.3MB. Free memory is still 234.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:49:29,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.96ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 121.3MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.73ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.85ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.89ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 95.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 270641.00ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 94.8MB in the beginning and 234.6MB in the end (delta: -139.9MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Witness Printer took 2.52ms. Allocated memory is still 352.3MB. Free memory is still 234.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76, overapproximation of bitwiseAnd at line 171. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=-127, eb=-128] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-127, eb=-128] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=-127, eb=-128, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-127, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=16777216, ea=-127, eb=-128, ma=16777216, one=1744830464, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-128, \old(m)=16777217] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L29] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L57] COND TRUE 1 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] EXPR e + 128 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-128, \old(m)=16777217, __retres4=16777217, e=-128, m=16777217, res=16777217] [L80] return (__retres4); VAL [\old(e)=-128, \old(m)=16777217, \result=-36028797002186751, __retres4=16777217, e=-128, m=16777217, res=16777217] [L241] RET, EXPR base2flt(mb, eb) VAL [a=16777216, base2flt(mb, eb)=-36028797002186751, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L241] b = base2flt(mb, eb) [L243] COND FALSE !(b < zero) VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L246] COND TRUE b > zero [L247] tmp = 1 VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, tmp=1, zero=0] [L251] sb = tmp VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, sb=1, tmp=1, zero=0] [L254] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [\old(a)=16777216, \old(b)=16777217, a=16777216, b=16777217] [L158] COND TRUE a < b [L159] tmp = a [L160] a = b [L161] b = tmp VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L165] COND FALSE !(! b) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] [L172] (int )(a >> 24U) - 128 VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 106 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 270.5s, OverallIterations: 33, TraceHistogramMax: 24, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 252.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 9355 SdHoareTripleChecker+Valid, 15.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9321 mSDsluCounter, 31662 SdHoareTripleChecker+Invalid, 13.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28177 mSDsCounter, 498 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15914 IncrementalHoareTripleChecker+Invalid, 16414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 498 mSolverCounterUnsat, 3485 mSDtfsCounter, 15914 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3965 GetRequests, 3238 SyntacticMatches, 0 SemanticMatches, 727 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6765 ImplicationChecksByTransitivity, 240.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=557occurred in iteration=32, InterpolantAutomatonStates: 554, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 32 MinimizatonAttempts, 6776 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 4386 NumberOfCodeBlocks, 4242 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 5474 ConstructedInterpolants, 0 QuantifiedInterpolants, 20555 SizeOfPredicates, 73 NumberOfNonLiveVariables, 4173 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 64 InterpolantComputations, 19 PerfectInterpolantSequences, 8448/15565 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-15 13:49:29,458 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-02-15 13:49:29,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/bitvector/soft_float_5a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:49:31,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:49:31,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:49:31,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:49:31,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:49:31,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:49:31,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:49:31,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:49:31,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:49:31,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:49:31,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:49:31,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:49:31,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:49:31,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:49:31,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:49:31,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:49:31,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:49:31,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:49:31,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:49:31,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:49:31,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:49:31,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:49:31,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:49:31,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:49:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:49:31,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:49:31,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:49:31,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:49:31,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:49:31,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:49:31,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:49:31,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:49:31,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:49:31,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:49:31,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:49:31,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:49:31,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:49:31,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:49:31,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:49:31,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:49:31,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:49:31,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-15 13:49:31,241 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:49:31,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:49:31,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:49:31,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:49:31,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:49:31,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:49:31,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:49:31,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:49:31,243 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:49:31,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:49:31,244 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:49:31,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:49:31,245 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:49:31,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:49:31,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:49:31,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:49:31,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:49:31,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:49:31,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:49:31,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:49:31,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:49:31,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:49:31,249 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 13:49:31,249 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:49:31,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-02-15 13:49:31,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:49:31,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:49:31,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:49:31,527 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:49:31,528 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:49:31,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 13:49:32,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:49:32,774 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:49:32,774 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 13:49:32,796 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514545733/7c8d089978c3494099e8b2afd04c52a1/FLAGe48c06385 [2023-02-15 13:49:33,095 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514545733/7c8d089978c3494099e8b2afd04c52a1 [2023-02-15 13:49:33,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:49:33,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:49:33,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:49:33,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:49:33,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:49:33,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:33" (1/1) ... [2023-02-15 13:49:33,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7fc931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:33, skipping insertion in model container [2023-02-15 13:49:33,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:33" (1/1) ... [2023-02-15 13:49:33,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:49:33,174 INFO L178 MainTranslator]: Built tables and reachable declarations